BMW B58 Engine: How to refill coolant (Escaping from Filler Cap - Quick Video)
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- เผยแพร่เมื่อ 15 พ.ย. 2024
- Just a very quick video before Xmas. I've experienced what many B58 engine owners have reported, the sudden drop in coolant levels, with only explanation escape from the filler cap. I will re-fill and monitor it.
Link to the previous coolant video: • BMW B58 Engine - How t...
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This is the ONLY video that shows what my F32 looks like under the hood. Thank you for explaining the two coolant compartments.
Same here! Everyone else seems to have been using the b48 engine. I found it myself right as I opened this video though, go figure
Thank you, that is the only one right engine match I found in last 3 hours.
Thanks!
330i xdrive Gran Turismo 2018
Had the same issue on my 18 F32 440.. Car has 22k miles on it and noticed it around 10k.. Issue was only in the main coolant tank.. Asked my dealer to replace the cap and that fixed the issue for me.
Certainly the most commonly reported issue and solution.
@@NoBrainerTalk Is the new cap you get from the dealer a new cap for the same version car, or is the cap you get from factory from a newer model car or a recalled part that is fixed with a better seal?
@@jonathangarn9635 It's brand new part, and it's the same Part Number as the existing one. To be honest I haven't installed my new caps, I'm saving it for a special occasion. 🤣🤣🤣
@@NoBrainerTalkwhat's the year/month of your B58 car ?
@@LionHeart567 May 2018
Very helpful. Many thanks for the video
Excellent video-- very clear steps to follow. ...You sound very calm :)
The B58 is known for coolant loss... despite my 2016 built 82k mi N55 isn't losing any coolant or oil. Not bad
Too bad b58 sounds a lot better
B38/b48/b58 se agrieta el turbo por el colector/carcasa de aluminio refrigerada por agua y filtra refrigerante 💩 bmw no es inteligente mejor es un motor fabricado en japon que cualquier otro
My coolant caps were rock solid to turn as well only 12k on the car, lubed the seal and thread now it's like butter ;-)
What did you lube them with?
@@jzallday102 A light smear of silicone grease. I'm at 25k now and still no issues with the caps.
@@sportsmachinerr1401 thanks man
i have the yellowish color in my intercooler tank, it’s little below the min but not much, can i add some 50/50 blue bmw oem coolant with distilled water mix to top it off?
As I don't know what the yellowish coolant is, I can't recommend to mix any blue coolant in there. Top up with distilled water is the safer choice in my humble opinion.
Good info
🤔hm, I have to add some coolant to my 340 i 2020 I don't drive to much but about 8 months, and I have a chevy tahoe 2005 in 8 years of driving 50 000 miles no coolant added, just saying 🤷♂️
Fair point.
Man, thanks for your video but empty in only 30 days looks strange no ?
Yes, but the caps are main culprit. I replaced the caps around a year ago, and I think there's been no issues since. So far.
Would you say these can still be a culprit if I cannot see any white deposits on the top of the expansion tank? Mine seems to go from Max to below min every 120miles
Hey so I wasn’t paying so much attention and just dumped in coolant until it reached the top of the reservoir haha.. do you think that would cause any issues? Only thing I may think would be an increase in pressure against the reservoir and connected hoses.. which could cause a leak? Maybe? Let me know what you think. Thanks
You should remove the excess fluid (fluid above MAX), as you have left no room for expansion in your expansion tank. Only negative consequences can occur including bursting of weak spots in the circuit. No way to predict what will give up first, you don't want to find out. :)
I done my coolant service with vacuum machine but when i tried to do on small coolant reservoir it didn’t work so can you tell me how to do that i also want to flush that small reservoir
You can do a post flush bleeding procedure for each system, so if vacuum filler didn't work, just bleed the low temperature circuit using the BMW procedure for that circuit.
it's not necessary to redo the bleed procedure when topping off right?
Correct, not necessary.
Do both tanks require the same coolant?
Yes, they do.
Why are you using same coolant for both tanks? I thought they are two different types of coolant? G48 for the main and HT12 for the smaller one? Isn't it? Also have you found the issues? Have you tried changing the cap? TIA
Hi, you should use the same coolant in both tanks. As they are supposed to be isolated systems, I guess it's possible to use one approved coolant type in each tank, but that would surely make maintenance more complicated. Due to covid lockdown and curfew I haven't been driving so much these days, so coolant is still at correct levels.
The B58 uses the H12 for both tanks. The G48 is the older blue fluid. And yes you can mix them.
Happened to my 440i when i had it. i was like 🤣😂 your ass definitely get swapped for a x4mc once off lease.
Interesting discussion, I've also been thinking about the X4M to replace both the M140i and the Evoque, but is an X4M a proper M-car?
@@NoBrainerTalk 100% worth it the car is fast and handles very good. People complain about the stiffness, but seriously I bought a M to handle the beating i throw at it. I thought the m40i x3/x4 but I wanted the M feel for Suv/sav. Cars i have previously owned m4,m6, 335i, 440i and 650i. All cars i drove daily in highest sport settings while paddle shifting. So trust wen i say it is a proper M car.
@@w1nnin I am leaning towards X5M myself, because of the proportions.. Starting to torture myself by building and customising it over and over on the BMW website... This is how it always starts... 😂
@@NoBrainerTalk guys go to the dealer and have a ride with the x4m, its really very nice BUT , theres NO QUALITY TO PLASTIC PIECES, DOOR HANDLES AND ETC ! so keep it in mind, try to wiggle them when u are there and etc, so that you could see for yourself. Touch every plastic, because in the long run, it will drive you nuts !
cheers bois
@@xxjordexx123 Yeah, rattles would drive me nuts, if they happen for that kind of money. But the BMW interiors are generally top notch, the BMW interior design appeals to me very much (every generation) and is amongst the top quality. I really don't like Merc interiors for example, but it's all personal preference.
Did you also get the distilled water from bmw?
Negative, just regular store bought distilled water.
Hi, my intercooler fluid turned brown, and the large one is still green (a little blue I think). I bought my car (2019 440i) from another student, and he told me that he added the coolant in some gas station (repairing store). I do not know whether they added the BMW authorized coolant. So, according to the brown color, could you give me any advice about this? Two coolers are all needed to top up (below the min). I decide to add green coolant into the large one, and a little confused about the small one ( the yellow coolant inside).
The intercooler coolant turning brown seems to be a common occurrence. I have had it aswell and others advised it happened to them. Recommend that you flush/empty the system and replace with fresh coolant. If the fluid was once blue coolant, then there has been a chemical alteration. There is no way to know if only the dye element (colour) has changed or also it's corrosion protection and anti-freeze properties. Therefore to be sure, the fluid needs to be replaced. If the car has blue coolant refill with blue coolant. If the car has HT-12 green coolant then refill with green coolant. Do not mix the coolants.
@@NoBrainerTalk Hi, thanks for your reply. I drive my car to the bmw official dealer as my car is still under the warranty. And they told me that there are two different coolants for B58 engine, and it is normal for the B58 engine that the coolant is yellow (brown) in the small hole. BUT, I think he lied, because I know that there are only two colors (blue and green) coolants for BMW. And when I pick up my car and drive home, I wait the engine to cooldown for more than 3 hours, and I opened the engine to check the coolant status, I found that they add the blue coolant in the big hole (which contains blue coolant before), and while in the smaller one, it is still yellow (but looks like green when I use my phone flashlight to look into the hole) and I use a tissue to get some out I found it is still yellow. So, in conclusion, I think at least the yellow (brown) color is normal for BMW B58, and I decide to get it replaced as my new car warranty will expire this year. By the way, is there any other service that is worth for me to get (maybe cost some small money) before the new car warranty expire?
@@xuanshen4697 Hi, I would say rather than characterise the fluids as normal, please ask them to confirm the Part Number for the fluids. If they want to know a reason, tell them you want to have spare coolant at home, and they should tell you what to buy. They should tell you two Part Numbers in this case, one for the blue coolant in the engine coolant expansion tank and one for the other coolant in the intercooler coolant expansion tank. Before warranty expires I would suggest you have the fault codes checked. Not all faults show up to the driver, if there's any stored failure messages or issues you can have them checked out within the warranty period.
@@NoBrainerTalk Hi, thanks for your suggestion, I will check the fault codes recently and ask for the types of coolants
@@NoBrainerTalk Thanks a lot!
Can you make a video showing where the power steering reservoir is located on the B58
Hi there, in most B58 equipped cars the steering is electrical. What car do you have?
Steering is definitely electrical I had to get mine checked out
Can you top it with water in extreme cold temperature?
Hi, it depends what you mean by top it up. :) For example if the intercooler coolant circuit holds about 4 litres of coolant, then 2 litres of that is anti-freeze and 2 litres of that is distilled water approximately (50/50). If I were to pour 100ml of distilled water into my expansion tank to replace 100ml lost coolant (50ml anti-freeze and 50ml of distilled water), I would now have 1.95litres of anti-freeze and 2.05litres of water, so my mix would change to 48.8/51.2 anti-freeze to water. Is 48.8/51.2 OK? It probably is, but if the weather is extreme cold, the need for anti-freeze obviously increases. I would generally avoid deviating from OEM limits if possible in extreme weather environments especially. However a small change of 50ml either way is likely to be tolerable for the short term, so if you topup with a small quantity of water then add the same quantity of anti-freeze later on to keep the right mix.
but when u replace cap can u buy the original cap like it was factory installed?
Yes, you can buy the OEM cap from multiple sources but your local BMW dealer should be able to help aswell (for B58 - 1st generation: BMW P/N 17117639020 for the large expansion tank and P/N 17117639024 for the small expansion tank, B58TU - 2nd generation: BMW P/N 17138665638 for the large tank and P/N 17117639024 for the small expansion). Hope this helps.
Hey can this issue also apply to b48 I got the message about low coolant I checked and there was nothing it was dry in the tank
Hi, the screw caps are found on various engine bays, not only cars with B58 engines. So it might be possible for non B58 engines to lose coolant from the cap. But a completely dry expansion tank is cause for concern and will require additional checks and monitoring. Obviously don't drive the car with an empty coolant expansion tank.
The yellow min/max gauge thing appears to be attached to two vertical rods inside the reservoir. Is the yellow gauge thing supposed to slide up and down on those rods or is it always supposed to be at the bottom, (roughly 6 inches below the top of the reservoir)?
The minimum-maximum level indicator should be at a fixed height within the expansion tank, it should not move.
Hi, one question pls. I have drove my 540i b58 almost 30.000km and now it shows refill motor coolant. In my opinion its normal after so many km , right? What do you think ?
It's a "normal" issue for the B58 to occasionally experience some coolant loss. In a perfect BMW B58 engine there should not be any coolant consumption or loss, but an initial loss over 30,000km is very very good. Not perfect, but certainly others reported much worse. The question is whether you will get the next warning in another 30,000km. :)
Ik your not suppose to mix coolant but I got mine used and I don’t know if they used oem blue bmw coolant. I am at 41k miles and I need to top it off. Would it be okay if I top it off and wait until 50k miles to do a full coolant flush ?
Interesting question, I guess the chances of the previous owner(s) using some completely unapproved and dubious coolant is quite low (i.e. issues that could come with intermixing are quite low probability). Depending on how much you need to top up, perhaps just add distilled water? This way there is no risk.
@@NoBrainerTalk it’s just sitting right under the minimum line but I’ll give that a try ✌️
Thanks for the video! Do you know where the drain points are for either tank? I've been meaning to do a flush as my secondary tank appears to be clear so may have been filled with water rather than antifreeze. Also, BMW say you should use a vacuum filling method for these, is that correct?
Hi, I believe that the complete draining is done by disconnecting the lowest hose on each of the radiators, which will end up draining the entire systems. For the antifreeze in the intercooler expansion tank which you say looks clear, please extract some in a syringe for example and kindly let me know if it is the same as mine in this video (i.e. light brownish colour):
th-cam.com/video/C6sIVTQh9xA/w-d-xo.html
BMW uses the vacuum filling method as that bleeds trapped air from the system. If you refill the cooling circuits without the vacuum filling method, you will need to bleed each cooling circuit manually with its respective bleeding procedure. The bleeding procedure is activated from within the car without tooling but could take multiple times to fully bleed and up to 40mins per circuit, so the vacuum filling method saves time.
@@NoBrainerTalk Interesting, thanks for the response! I had a look at your video and I think it actually does look like this... I'll have to put some in a syringe as you say and have a look. Is that not normal?
@@NoBrainerTalk Also interesting that several other people are reporting the same thing on that video's comments... seems that everyone has clear fluid in their second tank. I will replace it with the normal blue stuff and report back...
@@michaelkelly3158 Yes, since posting these videos, a few people have confirmed the same finding. It's not something the local BMW dealer could explain, and I tried multiple times to get an answer from BMW themselves unsuccessfully. All I can say is that the brownish liquid smells sweet like coolant, and I do believe the local dealer when they say they never touched it, i.e. this is how it came out of the factory. Perhaps this is a temporary fluid that is used by BMW to flush out production debris, or coat the coolant system with anti-corrosion layer, a fluid that was supposed to be drained before departure from the factory. So I think it's unlikely to be harmful, it's more likely to be inefficient at extracting heat from the charge air. All this is guesswork of course, it could also be blue coolant that turned brown after the dye chemically reacted with something, I really don't know. :)
@@NoBrainerTalk Interesting, thanks again mate. I'll let you know how I get on. Just got the vacuum filler device so I can make sure I do it right, it wasn't too expensive anyway!
Ah, so it wasnt green, I thought it was green coolant due to the Min/Max parts colour. Thanks for the video, I might just buy the coolant from the BMW service and refill it by myself. Or should I just buy it from the online store? Just the BMW authentic blue coolant product.
Damn, it was above Max and after nearly 4000km done, its almost at the Min level, 440I GC Mppsk..
I think it's possible the fluid expands with outside temperature, so there might be a level change because of that (no fluid volume change). Was it above max in summer and near min in winter for example? You can top up yourself, if the car is filled with BMW blue coolant then topup with the same coolant, don't mix coolants.
@@NoBrainerTalk checked volume change yesterday, after increasing engine temperature just above 70 and checked, it was just at the Max level. Thanks for the reply, the car was always serviced at the BMW centre so it should be fine. Thank you
how do you tell if it is max or min? i came from a vw we only had that sphere tank x.x
There's no external indication. You have to open the coolant expansion tanks and look at the yellow indicator within. This means you have to wait for the engine to be cool, otherwise you could get hurt when you open the pressurised and very hot coolant expansion tank cap. The yellow level indicator is inside the coolant so you know whether you are at minimum or maximum with the fluid level. Too much coolant (i.e. above max) means the indicator is completely covered, too little coolant means the indicator is dry because the coolant is below it. So the indicator is OK for quick check of the coolant.
@NoBrainerTalk damn hard to understand unless I go out and look but yh thanks ill get it :)
horrible, this should not be a problem until the car reaches 200K plus miles
Indeed, but in a way taking care of something easy like coolant topup makes you feel more connected with the engine. :)
yes my coolant is literally leaking right out idk whats the problem do you know what could be the cause of it? water pump?
I'm sorry to hear that, but it's unclear where it's leaking out from from your message or which coolant (engine or intercooler). If either of the expansion tanks is low and you have access to BMW approved coolant, fill it to the correct level and monitor it every day for a couple of weeks (never open the caps with the engine hot). If it goes down again and you have no indication from where by looking around (it could potentially be anywhere in the circuits, check your radiators aswell in case a stone has caused damage), then get your car to the dealer or qualified mechanic to pressurise the system(s) and perform a leak check (but don't drive it with empty coolant expansion tanks).
NoBrainer Talk so you wouldnt suggest it could be my waterpump?
@@michealmorris6929 Why do you suspect the pump?
@@NoBrainerTalk I took my m240i in to get serviced and was told my water pump had seepage but it could wait 2-3 months to be replaced. 4 days later, I had a decent puddle of blue coolant under the car but when I checked both tanks.... they were still pretty full.. not sure what to do either.
@@pacyeeze05 If you have noticeable leakage of coolant under the car, but the expansion tanks are still between minimum and maximum, is it possible the expansion tanks were overfilled? To answer your question, any component in the coolant circuit can potentially be a leak source, I believe you are saying the mechanic saw indications of coolant escape at the service (possibly without even pressurising the system) and advised you that it wasn't urgent (can wait 2 to 3 months). Personally, I would have replaced it there and then, 2-3 months is not a long time.
Do I need to keep the engine running while adding the coolant? Bmw 520i 2013
Model uae
The engine should be cool before opening the coolant expansion tank cap, you can top up with engine off.
at first fill engine should be off but after, yes engine should be running if water pump is mechanical and you release the air with the plastic screw there also open the filling cap too. first close the main cap first and then tighten the plastic bolt. if you have a prince bmw engine then you have a secondary air release bolt on the transmission heater too you also need to release air from it.
Great video. Question, just drained coolant on mine and also did the bleeding procedure. The coolant in the main tank for engine cooling stays at the correct level. However, the second reservoir for intercooler went below minimum mark everyday after using my car(it has been 3 days) and I filled it back up 3 times accumulating about 500ml of 50/50mix coolant already. I assume the secondary reservoir uses electric pump which should already had been bled as I mentioned earlier. Do you have any suggestions?
I'm sorry to hear about your issues. The bleeding procedure can be imperfect, and topup soon after is not uncommon. However, assuming this is persisting (topup daily), and you don't suspect the expansion tank cap (no sign of spills/evaporation), you probably have a leak somewhere in the intercooler coolant circuit. Have a good look at the intercooler radiator at the front of the car, especially if you don't have the black stone guards. If you do have the stone guards focus especially in the middle area where there is a gap between the stone guards. If there is no obvious sign of leak (at the radiator or elsewhere in the engine bay), and the coolant continues to be consumed at this rate, the system needs to be pressurised for troubleshooting. It's possible for the coolant to be lost in the intercooler and end up in the cylinders for combustion, so also check for the smell of coolant from the exhaust while the engine is running. If you see noticeable smoke from the exhaust this would also be a sign of coolant going into the cylinders.
Thanks for the detailed explanation.
The intercooler reservoir fluid stayed level between min and max without having to top off for years until I did the coolant drain, so while the leakage might be the problem, I am leaning towards the imperfect bleeding procedure. Just curious if the bleeding procedure (low beam on, heater to max and lowest fan setting + holding the accelerator actually bleeds both engine and intercooler coolant or is it just for one of them?
Also, just monitor the intercooler reservoir again after letting the car cool down and the coolant level seems to remain where it should be now :)
@@Bennymix99 I believe there's a dedicated bleeding procedure for the intercooler coolant circuit. I believe it's very similar to the engine coolant circuit, but headlights on (not just low beam) and hazards on, then the rest - heater to max and lowest fan setting, and hold accelerator for 10-15 seconds (until the pump starts working).
How did you drain the coolant for each system? I can't find any info on drain points for these systems. Thanks!
@@michaelkelly3158 Any success? I am also curious about it at b48 engine. I think removing the lower radiator hose should do but not sure?
Hello im loosing water on the small tank but i have no water on the floor sometimes comes white smoke from the exhausts and the car shocking and lose power like i drive only with 100hp no turbo then i turn off the car and turn it on again and i cant drive slowly or normal i have to give him a litle boost for that dont happen and start choking again and lose power and have a error on cylinder 6 what could be?thanks by the way
The small expansion tank is for the intercooler circuit (charge air cooler) and it's an independent coolant circuit that does not cool the turbo. Loss of coolant from the intercooler coolant circuit could reduced performance, but what you describe seems to be more severe. Coolant can be lost from the expansion tank cap, so not having a puddle underneath is not strange. I don't think you mentioned if you have any CEL, personally I would plug in a scanner to OBD2 port and check for fault codes (e.g. defective sensors can manifest in poor engine management by the ECU/DME). But generally it sounds like you should take your car to qualified mechanic for full check-up, possibly on a trailer if you believe there is a serious engine issue.
@@NoBrainerTalkthanks for the help 💪
Hi my friend, does the smaller reservoir tank hold coolant or just water?
Coolant (50/50 mix of anti-freeze and distilled water).
@@NoBrainerTalk thanks, my reservoir in the smaller tank is just water. I bought from new so will probably need to ask BMW to drain and refill with coolant and distilled water.
@@f32440i If it smells sweet it probably has anti-freeze (water will be odorless), but if you believe there is no anti-freeze or from its colour is likely not within the normal distilled water/anit-freeze ratio then yes have it flushed and replaced. The right percentage of anti-freeze is essential not only for reducing the freezing temperature but also for increasing the boiling temperature of the coolant and also adds corrosion protection to the circuit. Just water will have no corrosion protection.
@@NoBrainerTalk thanks for your insightful feedback. I'll have a smell but it definitely has no colour so I'm assuming bmw used just water from the factory which is so annoying.
@@f32440i I personally found a light brown / olive colour fluid in my intercooler coolant expansion tank (the small tank), and I also flushed it as there is no coolant from BMW except LC87 and LC18 (blue and green respectively). I think there must be a fluid BMW uses to add corrosion protection to the coolant circuit that is not a coolant (maybe also used to flush out build debris), and should be flushed (replaced with coolant) before the car leaves the factory. The presence of this non blue or green fluid I believe indicates an error at the factory. However, until now (despite being reported by multiple people around the world) we haven't had any confirmation from BMW that such errors have happened or recommending the checking of the coolant (for wrong fluid), so this is purely a guess.
Do I have to mix distilled water with it???
If it's the BMW G48 blue coolant then yes, you need to mix it with distilled water (50/50). This is a good thing because you can be sure how much distilled water is there, as the distilled water is the primary cooling fluid in the 50/50 mix, but the coolant / anti-freeze is essential for corrosion protection, lubrication, etc. The instructions will be on the bottle, and it's always good to follow OEM guidelines. It might say "mix equal parts of anti-freeze and water" or something like that, it might not say mix 50/50.
Did you manage to fix the drivetrain issue?
It hasn't reoccurred in a long time, so I am considering it to be resolved... :) My gut feeling is that it was bad fuel together with the bad intercooler coolant, so the Wynn's additive and the intercooler coolant flush did the trick.
I having low coolant warning on my F30 B48 engine, after I checked both tank having water above max, and I have changed the main coolant tank as well. Could you advise? Once I restart the engine the fault code gone. The next day I drive out the fault code come again.
Hello, the coolant expansion tank sensor should be checked, perhaps you have a faulty sensor. Qualified mechanic should perform resistance checks. Also, it's not good to have above maximum level of coolant, so I recommend you extract the excess coolant and get it down to maximum level. Let us know how it goes.
@@NoBrainerTalk is both tank having level sensor on it?
@@chongyeouwei3433 Negative, the intercooler coolant expansion tank does not have a sensor, only the engine coolant expansion tank has a sensor.
@@NoBrainerTalk is weird , i have just replaced the new expansion tank with the sensor. But now still on and off the low coolant fault code
If you are sure the replacement tank came with a new sensor, then it is unlikely to be the sensor (the chances of two bad sensors giving false reading of low coolant are very slim). Please check the removed tank that it has a sensor (you can send me photo of sensor on nobrainertalk@gmail.com). The sensor will report data to an electronics module, so the wiring, connectors and electronics module need to be checked. Sometimes connectors are contaminated, and need to be cleaned. Start by plugging in diagnostic equipment into the OBD2 port and checking for any error codes. Afterwards begin troubleshooting the electrical components. If you actually find low coolant, then it's obviously none of this. :)
One day I was in a pinch and used blue Gatorade.. 💙
🤣🤣🤣🤣
Why inside the intercool has just water as it looks clear liquid? Isnt the same 50 50 coolant/water mix being used at intercool tank as well as the main tank?
Yes, it should be the same (50/50 blue coolant mix) but like yourself alot of people have found a different fluid (clear to brown) in the intercooler coolant expansion tank. This fluid colour is not yet explained (although it smells like coolant). Ask your local BMW dealer to explain what it is, and if they can confirm with the BMW Part Number then it is OK (please share the P/N here). If they can't explain what it is with a reference number such as P/N, then it is best to flush it and replace it with 50/50 blue coolant mix.
Because you should never top up that tank as it's overflow tank.
@@Headpunch Planning to change the coolant in car. So i shouldnt top up from intercool water tank? Was planning to remove lower intercool radiator hose to get the water out and top it up with 50 50 coolant water. wrong?
@@Headpunch Sorry I did not understand you. Planning to find some hose to drain that low temp overflow tank as well then I will fill the new 50/50 coolant water mix from that tank as well as the high temp tank too. and I will top up until reaching the level MAX and will not exceed that mark. Am I wrong?
I got a gallon from Honda it says 50/50 distilled and the colour is blue. Can I also put in the bmw in both thank ? Thanks man
BMW coolant is nitrite and phosphate free, is that stated on the Honda coolant container? if yes, then theoretically you can use it in a BMW engine. But there are various additives in coolant, that may be in different mixture combinations. Not saying the BMW coolant is superior, just that it might be different to Honda coolant even if they are both blue colour as well as nitrate and phosphate free. I'm not sure if you would be topping up BMW coolant with Honda coolant, or flushing the system(s). Toping up has a risk that there may be chemical reactions between the two (you could not say for sure unless you tested them and found them to be intermixable in peak operating conditions). Generally speaking for my engine, I would stick to BMW coolant.
@@NoBrainerTalk There is no coolant as bmw coolant :) just nitrite free coolants in the market have bmw approvals, and a BMW logo coolant will not be any better quality than them at all. instead of buying a bmw branded coolant for bmw, it is always much smarter to buy a quality brand coolant such as Motul or Total with bmw approval. and it also can be used for a honda as well. Even authorised bmw dealership services where I live do NOT USE BMW coolants at all. They use either FUCHS or CASTROL for bmws. And they use the CASTROL which DOES NOT EVEN HAVE AN APPROVAL FROM BMW at all. It only has recommendation for BMWs and has not any approval. The water used at the service is also probably TAP WATER I believe. IT is very unethic and dishonest but there is nothing that can protect us. Mailing the problem to BMW got me nowhere as Bmw did not even answer emails. So dont be fooled by BMW logo on the coolant bottle which is a marketing thing. Save your money and get a better quality coolant with bmw approval together with lots of other approvals, and it will last as long or longer than a bmw coolant.
hi in the small cap do you just re fill it up with coolant that it nothing.
Hi, what does "that it nothing" mean? :)
can we mix this dest water G48 with some others mark Blue antifreeze?
Hi, even if an anti-freeze is blue, it does not necessarily mean it is BMW approved or appropriate for a BMW engine. Different anti-freeze is dyed different colours by different manufacturers to help users avoid mixing them, but it is not set in stone that any colour means anything specific. The BMW blue coolant does need to be mixed with distilled water (this way you can ensure that there is 50% water which is the primary cooling agent). There are pre-mixed coolants out there (they do not need to be mixed with water) but the properties need to be checked to ensure they can be used in a BMW engine. Generally, it is advisable to stick to BMW anti-freeze and in that case yes it needs to be mixed 50/50 with distilled water before being added to the expansion tank. In all cases, please do read the instructions on the anti-freeze container.
@@NoBrainerTalk thanks for that reply ! i did chek that antifreeze in Switzerland i see they have only dest water but not bmw anti freeze so i see i must to order online in some germany shops
i saw your previous video about different colour of intercooler coolant fluid. To me it looked like somebody filled it with windshield wiper fluid :D Maybe by mistake :D
OMG, can you imagine? :p But it did smell like coolant I must admit.
HT12 is green.
What’s your opinion on my situation.
I have a 2020 m340i and obviously uses the ht-12. Call two dealers one closes to me and the other was the dealer I bought the car asking for coolant and they both said they only had the blue.
I should have just used distilled water but it’s cold now soo.
I got the blue because they said I could use it , which I did (100ml) of it. Now I know I really shouldn’t have mixed. Will this creat big issue? Should I get it flushed right away?
You are OK as far as I know. The two BMW coolants should be intermixable as they have similar properties. I believe HT-12 is superior (in that it is more environmentally friendly) but I do not expect BMW to have issued a new coolant that is prohibited to be mixed with their own blue coolant without extensive warnings everywhere. If the dealer you bought the car also suggested the blue coolant, I think you don't have anything to worry about. This is my personal opinion, I might do further research on this as the question has been asked before and we should get a clear answer from BMW themselves.
@@NoBrainerTalk yeah I since removed some from the tank and added water. I am now waiting on the ht-12 and once that comes in I’ll siphon the tank completely and fill 50/50 with the green but will definitely looking to flush late or early next month!
Thanks man
@@garthbanton4236 Hi, I'll see if I can get a more detailed answer regarding the intermix of these coolants in the near future, it would be a shame to perform maintenance unnecessarily..
You can mix the green and blue BMW fluid. The green fluid is their new antifreeze but you can safely mix them.
This that not mean you can flush the coolant and use blue coolant going forward. You must continue using green coolant but if you have to top off and don't have greem, use a 50/50 mix of distilled water and blue.
@@wingedhussar5528 I made a dedicated video: th-cam.com/video/ULptzUnX0og/w-d-xo.html
How’s your average temperature now? My intercooler fluid turned brown also but the larger tank is still blue. I used to average 90-100C and now I’m averaging 115-120C just from regular driving. I booked an appointment for a coolant flush next week. Hopefully that fixes it.
I haven't checked temperatures to be honest, have only been opening the expansion tanks every so often to check levels. All OK so far. One thing I will do soon is extract some coolant out of each tank and check for colour changes.
@@NoBrainerTalk Also, was I supposed to keep it between the min and max? I topped it up right at the max mark 😅
@@ildrichaseron If it's just at the max mark then it's fine. :)
i have 115 120 when im pushing it in sport+ is that normal?
@@Noizy-te2zz usually coolant temperature drops when you wot,
My coolant is quite low but the light doesn't come on, is that a defect?
Also, I have a different specificity of coolant in both tanks. Do you recommend I get them flushed and have BMW-approved coolant added?
I presume you mean in the engine coolant expansion tank, as the intercooler coolant expansion tank does not have a sensor. This is a common observation by B58 owners, that coolant drops below minimum in the engine coolant expansion tank, and it is found visually before any warning from the sensor. This can only mean the real minimum level of coolant (which triggers the warning) is actually below the level that the internal indicator indicates to be the "minimum." The "minimum" level indicated in the tank might be for best power retention of the engine, whereas the true minimum level (detected by the sensor) might be to prevent engine overheat damage. If you saw the expansion tank is bone dry empty and there was no warning, then yes this is likely a defect with the sensor, otherwise don't worry, just top it up to just below maximum. For the second question, if you have coolant that you know for sure is not BMW approved coolant, you need to get it flushed out. The various components of the coolant system are designed to tolerate/use a very specific coolant specification and coolant of different specification can theoretically be harmful to those components (e.g. compromised lubrication, corrosion resistance, etc). There's no reason to use non BMW approved coolant (and bear in mind now there are two coolants, the classic blue coolant and the green HT-12).
@@NoBrainerTalk Alright, thank you very much for the info man. Helps me out big time!
My mechanic is a stickler, I might actually have to convince him to flush both systems.
@@PancakeProduct Good luck!
you just use the same engine coolant for both
Indeed that is what we believe is correct.
@@NoBrainerTalk This is a random question but here goes
i have a bmw 320i lci f30 2018 m sport (B48B20A engine block i beleive)
mods so far
FTP charge pipe
MST intake
BOOTMOD3 93 OCTANE OTS MAP stage1 46%hp increase 48% torque gains specified
now bmw say 181hp stock but ive seen dynos stock at 192 to 194
so given the above i should be making 280 to 284hp on my stage with 435nm of torque
does that sound right to you??
waiting on my catless downpipe to come also
fyi i only ever use 99 ron fuel (93 0ctane)
cause i know the 330i has lower compression 10:2.1 mine has 11.0.1 (same as b58)
meaning lower compression on 330i can handle more boost safely, so stage 1 on that would be around 296 to 300hp
@@Reaper_f30 I believe it's hard to get a proper dyno measurement, alot of dynos don't measure properly and tend to quote higher engine power than real. Having said that, if your car is making 181hp stock per BMW figures, then you can expect a sizeable improvement from stage 1 tune. Stage 1 tune tends to give the most power increase, stage 1 to stage 2 is not as much increase (when you get the downpipe). bootmod3 is very well respected, and their OTS tune claims tend to be realistic. If they are quoting 46% increase in hp, I would expect that to mean over BMW figures, so about 265hp.
Should you bleed the coolant after refilling? Or is the bleeding procedure only for when you drain the coolant?
The bleeding procedure is used when performing a flush and refill of the entire system. I believe it is not necessary to perform the bleeding procedure after only a topup of the expansion tank.
@@NoBrainerTalk what if there was a good amount missing like to the point where I got an indication from the car, cause I just topped it off right now and I have turned it on yet, don’t know if I should bleed or not?
@@NoBrainerTalk also thank you for the response 🙏
@@daviddan1379 You are welcome. I'm not sure to be honest. The expansion tank stores the additional coolant that the system may need depending on the mode configuration (especially for max cooling), so it may not be critical to bleed it out (you've not interfered with the lines, radiators, etc, just the fluid in the expansion tank). But there is also no harm to perform the bleeding procedure...
Just pulled all my under cover of to find the leak to find out it’s the bladdy cap. It has a drain hole under the cap which make it leek under the car
Good luck!
so you filled coolant in both tanks??
Yes, I added some 50/50 mix coolant to both tanks. In the intercooler expansion tank later on (months later) I added just distilled water to raise the level just a tiny bit.
@@NoBrainerTalk but what if you add months later in intercooler expansion 50% 50% and not just destilled water? it smth wrong ?
@@Noizy-te2zz Hehehe, I did that simply because of convenience. However there is no risk. Even with a tiny bit of water added as a top-up, the overall mix of anti-freeze and water will still remain roughly 50/50 (the total quantity of fluid in the intercooler, radiator, pump, tubes, etc is quite large). In any case, no harm will come to the engine if the mix was e.g. 49/51.
@@NoBrainerTalk i have also one question.. In the big intercooler expansion tank im fine i have antifreeze between max and min, but in the smaller one ... i have on top of the max, i mean a little bit more than half of the expansion tank.. so should i take out or its not trouble for the smaller one ?, cause i also dont have accesories right now to take it off etc.
@@Noizy-te2zz Hi, the big expansion tank is for the engine coolant, only the small expansion tank is for the intercooler coolant. I would buy a syringe and extract the small excess coolant from the intercooler expansion tank and bring the level down to the maximum. You should do this more urgently if you drive the car hard (or are living in a hot environment) i.e. if there is more chance the coolant will get very hot. The max indicator is there for a reason, keep in mind that any fluid will expand as it gets warmer, and BMW have obviously calculated how much space is required for the fluid to expand into without over-pressurising. I would always recommend to adhere to BMW limits. If you don't push the car hard then it can wait a little longer to remove the excess coolant.
In my g20 m340 I have green coolant. Name ht-12 antifreeze coolant
Yes, newer cars will have the more environmentally friendly HT-12 which generally comes in green although early batches came in magenta. There's some information that HT-12 and the blue coolant are intermixable, but I would check with the official BMW manuals before doing so. Generally, if the car has blue coolant in the tanks then it makes sense to top-up with blue coolant. If the car has green or magenta coolant (remove a sample with syringe or turkey baster to check, i.e. not against the internal tank yellow indicator), then it makes sense to topup with green HT-12 coolant (you can topup with magenta HT-12 theoretically, but the magenta HT-12 was a limited production and won't be easy to find as a spare).
@@NoBrainerTalk it's not even says what coolent I have to use in my manual.. But I will check if it 100 green? Ht12 I have to. Mixes also right?
@@oneofm3409 Yes, HT-12 will also need to be prepared as 50/50 anti-freeze and distilled water. Please make sure by reading the instructions on the back of the container.
Hey man!
Im losing coolant from the main tank in the b48 320i engine, i filled it up with 50/50 like you did and after 5 months it was losing halv coolant it now in the minimum range. So i went to bmw and they sad that it should lose some coolant even in the diesel version and he sad that if you coolant warning lights is coming up than its something wrong, and i should not fill it upp just to se if the coolant light is going to pop up.
So what do you say about my case losing half of the coolant after 5 months?
The point at which the warning light comes on is even below minimum. I would not drive a car for extended periods with a coolant level below minimum. You should keep your coolant levels within the levels decided by BMW, and if there is unexplained drop in the coolant level again, the dealer should pressurise the system and check for leaks. Coolant level drop can occur for many reasons (e.g. incorrect bleeding procedure), but if it happens repeatedly then the root cause needs to be found. I hope this helps.
@@NoBrainerTalk is you car consume coolent after all you did?
@@senadselimovic8649 It's been stable, but I haven't been driving that much due to curfew and lockdown and stuff. :(
I had the same problem ...
Yeah, unfortunately this is a well known issue. If it continues to occur, I might replace the cap and see if it helps. Further to comments on the other video, I will also monitor intercooler coolant colour, and see if it changes.
@@NoBrainerTalk The problem is that the engine runs at 110 degrees Celsius and the water in the coolant evaporates. So the tank cap will probably be ok.
@@sami.p.3355 Indeed, but due to being a sealed pressurised system, the boiling/evaporating temperature should increase above 110. In addition the anti-freeze will also help increase the boiling temperature of the mixture. It sounds therefore that (a) it's possible for the cap to not seal the tank properly or continuously (hence the boiling temp can be 100 deg C which is too low for normal coolant temperatures), and/or (b) the anti-freeze is not properly mixing with the water. Hence when the coolant mixture reaches and exceeds 100 deg C, the water element is able to evaporate out of the tank (something it should not be able to do). Hmmm...
@@NoBrainerTalk Its could be some leak anywhere from hose connecters to PCV valve to gaskets to 1001 things in the circuit as well no?
@@keithw4920 It sure could be, but I can't see any wetness or residue anywhere else. Presumably wherever it would leak from externally would result in the same white residue as I saw near the cap. After 100+ km of driving since my topup there is no change. I wonder if it leaks only when I drive it very hard at my "test track"..
What if the small tank is low as well? Should I top it off ?
Yes. Level should be between minimum and maximum indicators.