Very helpful video! Thanks! The only thing I’d add is to check the old ring seal comes out with the sensor. Mine didn’t and the new one wouldn’t fit until I realised what had happened.
Thanks heaps mate, My car wasnt showing any temprature readings and I watched this and realised the electronics was disconnected, plugged it back in and where all good.
Thank you so much for doing these videos, because of them I've replaced my brakes and now the sensor. Your videos are invaluable and help get into working on my own car. Again thank you!
Thanks so much BMAC! did this to my golf and it completely transformed my car! idles smoother, much more power and better fuel economy! I guess this sensor was telling the ECU all sorts of incorrect readings! £33.80 from VW well worth it!
Excellent video. Twice I've had problems with my mk4 1.6 Last year, sometimes it wouldn't start after a journey and the temp gauge was always on zero. AA man diagnosed coolant temp sensor issue and I watched your video on how to replace one. The mistake I made was not getting a genuine part, as exactly one year to the day the sensor went again, this time I was getting a false overheating reading on the temp gauge and 'check coolant service manual' warning. Again AA man said engine wasn't overheating. Got a genuine part this time and working good as new now. I've learned my lesson.
After replacing the HT leads on the advice of the RAC mechanic (cost about £50) I still had rough running so started a search on the internet where I found your video. After fitting a replacement sensor the misfire has gone and also the heater is working properly again. The only hassle was when I was doing the switch over. I pulled out the faulty sensor but when I tried to quickly insert the new one it wouldn't go straight in. The old O ring was wedged in there and I lost a fair amount of coolant while probing around to remove it before I could put the new one in place. That meant I had to top up the system with water and antifreeze but a minor inconvenience overall. Thanks a lot for your clear explanation and demonstration. It will get me brownie points with my wife when she gets back in the car. It's a 2001 Polo 1.0 by the way.
Hello BMAC VAGS! Great VID... I am about changing it on my Golf at this very moment. My question is: This O ring mentioned by John, I cannot see this O ring in your vid. What must I do with this separate O ring? .... which came along with the new sensor spare part. Appreciate your comment on this issue. Thankyou & best regards Thomas
Thanks for the video, very informative and proffessional. I feared the worst when my Leon would struggle starting and idle strangely, very relieved that it is such a simple fix.
After watching your vid I changed my coolant temperature sensor on my 1.8T 20vt. Awesome vids keep them coming. I'd buy you a beer if you were local or a henry
Thank you for this. I think I might be able to do this even myself. Because of the specifics of your video I ordered the part and I hope this will work! I already changed the timing belt, water pump and the secondary pump. The sensor light is still going off like crazy. I hope this works! Thank you!
Great information I've been having starting problems with my polo symptoms seemed the same as some of the tutorials I've watched so I changed coolant temperature sensor a few weeks ago not had problems since, cheers well pleased.
Thanks for the vid. Have a Polo 1.2 and just done the swap. Its in a similar location to the Golf in this video and removal/fitting is the same. Tip I would say is when removing the old one and sticking new one the old ring can still be stuck in there so you will have to stick your fingers in to remove as I had with mine. And make sure you wear gloves and car is stone cold.
Great video, saved me time and money. Thanks (and yes I did lose coolant when the o-ring came out on the old sensor and I had to mess about swapping it over 😂)
This guys are great to give out these videos,thank you so much,it`s been a while since I was taking my car to mechanic...doing a lot of this small repairs myself...thanks again
Hi BMAC VAGS, great video, my sons car has a starting problem when cold, sounds like its not firing on all cylinders, lumpy, (no engine warning light),,but after a few times of starting, its fine, and runs beautiful when warm, 1.4 16v 9n engine cheers
Thanks for the video my car is running rather smoothly but the temp gauge is showing no value most of the time, I think the sensor is faulty BUT when inspecting it I also noticed the wiring was badly hurt, actually it even broke the minute I touched it, I solder back everything together and protected the wiring correctly, I will change the sensor and hope my issue is the sensor and not the wiring.
Really clear and helpful video. Great tips. My 6n2 polo goes into a low idle/stalling issue after about 10-15 mins of driving so i will try this sensor swap and hopefully it will help. Thanks!
BMAC VAGS I firstly ordered one of the sensors but it wasnt genuine. I fitted it as per your video. For a week everything was good. Then day 8 after 10 mins driving the temp gauge would fly up to max, then back to 90, then back to max with the temp warning light flashing...and so on. I checked and coolant level was fine as was oil. Lesson learned. Just now i have gone and fitted a genuine one (should have listened to you first!! haha) All went well (havent driven it yet). It leaked a tiny bit once i clipped it, but a wiggle and all seems well. From under the car looking up, i can see part of the brass/copped part of the sensor (like it isnt seated properly)... but from above it looks like its in straight. Could you confirm that the copper/brass is visible from the side facing the rear of the car from underneath for me???? It will put my mind at rest haha. Thanks again! you star
Hi I have 2014 VW touran which temperature keeps dropping when going down or at high speeds I had thermostat replace and water replace but still lossing temperature any ideas
BMAC VAGS ive got a 1.6 Petrol Bora so its pretty much the same as this 1.4 Golf (i own a 1.4 golf too), my temp gauge reads cooler the faster i drive.what do you recommend i replace.
Excellent video and videos. I have a VW Polo 1.4 (petrol) from 2005. It starts perfectly in the morning but if the car is parked more than like 30 minutes and less than 6 hours then I need to hold on extra long for the car to start. Morning start is less than 1-2 seconds and delayed start takes about 3-4 seconds - do you think changing the coolant temperature sensor could help? Many thanks in advanced.
@@sorab777 Still the same issue, takes longer to start and I've still got the car! Took it to few garages over the years, no one can solve it - surprised it's still starting.
"My" (it is actually the car of a friend) car is a Golf 4 with the 1.4 (AXP) engine. Is it possible, that a missing clip of the connector could result in a false reading of the temperature sensor, although the cockpit shows the temperature? I am asking because I have a major problem with running rich and three failed emission tests with high carbon monoxide. After the first emission test (january 2024) with 10 percent CO, catalytic converter and oxygen sensor were replaced and CO dropped to 2.4 percent (february 2024). The improved CO was very likely because of the new (and clean) catalytic converter. The old catalytic converter was black inside, what I saw months later. Then the following parts were replaced and cleaned in chronological order. 1. Temperature sensor replaced 2. ECU replaced for a ECU (with deactivated immobilizer) 3. Throttle body cleaned 4. MAP replaced (engine has no MAF) 5. fuel regulator replaced 6. throttle body replaced 7. second oxygen sensor replaced and catalytic converter cleaned (as far as possible) After every step, sparks were still black again after a test drive around the block Third emission test in octobre 2024 was a fail with 6 percent CO. I am now guessing that a false reading could be the reason for the running rich. A life test with a OBD2-scanner showed a fuel-ratio below 14 during most of the time during the drive. Oxygen sensor is listed with circuit heating (something like that). I checked the oxygen sensor before with a multimeter. 12 volts are present at the 6-pin connector at pin 3 and 4 for the heating and heating has about 4 ohm. Heating should be okay. I am the second "mechanic" (I am not a car mechanic). The first mechanic (a real car mechanic), who replaced catalytic converter, oxygen sensor and temperature sensor (on my advice) is a relative of the car owner . I did the work in summer beginning with the replacement of the ECU. Engine had no problems with the emission in january 2022.
I have a 2.0 gti mk5 golf and I replaced both of my sensors and I still keep getting the p2185 code it won’t go and my fan is going crazy fast constantly
buen videos fue muy util,, reemplazar el sensor de temperatura,, no entendi nada por que el idioma es en ingles,, pero vi todo el video y me ayudo mucho.. gracias. ...
As soon as I replaced the new Coolant Temp Sensor I got code P2181. But yet my car still runs at 190 degrees as the normal and I feel no signs of overheating. (AC Works flawlessly etc). I cleared the code twice and within 2 days it comes back as pending. Do I have a defective Temp Sensor? I bought an OEM one.
Great VID. I am getting TERRIBLE working engine in very cold mornings. Misfiring or what feels like a misfire, hitching and stumbling, loss of power. Warmer mornings....hardly anything or once the car warms just the odd little hitch. Trying this next. Replaced camshaft positioning sensor.....NO luck....NO codes, plugs are nice and white so don't think it is a plug or coil....spark plug would show signs of fouling???
Hi thank you so much for this video...it is VERY helpful. My temp gauge isn't registering and the car is idling like rubbish...so I will try this. Do you have a video for flushing the collant?
Bmac would this cause epc light engine management and traction control light to come on, its come up with code p0106 map sensor on my 1.6 16v bcb but I've done all checks on my obd2 and map is fine and only thing a guy is saying is that my intake air temperature is high
What do you call the part it is connected to with all the hoses going into it? Part of mine is cracked and leaking but I don’t know how to figure out what the entire part is called
You've really helped me alot with your videos, I never subscribe to people but you deserve one! I found a temp sensor on ebay from VW UK, for 4 £, do you think it's the real deal or what?
I cleaned the throttle body on my polo 6n and the idle jumped to 2000revs.. Thought it just needs to relearn the idle position, but it turned out to be the coolant sensor! The mechanic that i took it to for vag com TB alingment said to me straight on i need a new TB (which costs 300€), which seemed to work fine to me, so really, if you have any problems with how the engine runs, it pays to check the coolant temp sensor.
BMAC VAGS i bought an mk3 golf 1.6 with 101 hp. the car has a problem with v the cooling temp. When its running stationary the temp goes normal to the haf and when I drive in the highway the temp drops... is this an thermostat problem or a coolingsensor? and when i am parking and im turning my steering i hear an cracking noise like an old door that opens slowly... is this the steering joint?
My 96 999cc Polo had an oil leak. Now fixed, but now idle is 2000 to 2500rpm. It's gone mad! Could it be the coolant sensor. So far I have replaced the throttle body, which is now disconnected so its really rough to drive, but at least the thirst has gone down a bit and she's not revving at the lights and upsetting pedestrians!
Always test it before buying one if you have a multimeter set to ohms mode and (for this one) put the probes between terminals C and D on the sensor, room temperature mine was reading OL and 850 ohms across A and B - totally screwed when C and D should be reading 1500 - 2500 ohms at nice room temp
I have changed the coolant temperature sensor in a Passat but when I put on the horseshoe clip to keep it in place it clips in place but doesn't hold the sensor in place securely. It does take some force to pull it out but I can pull it out and the engine light has come on again since I placed it. Do I need to replace the rubber O ring or what am I doing wrong?
Hi, I can't find the sensor on my car it's an golf mk4 2003 1.4 same as yours but the engine layout is slightly different I've tried looking for it can't see it anywhere any advice?
Would this be able to fix a fluctuating temp gauge ? I have an issue with my golf mk4 where the gauge fluctuates between 0 and 90 quite often. Would I also need to flush the coolant ?
I would say so. If the temp gauge is stuck on zero all the time, or it's going to the red zone falsely (get garage to check the engine isn't actually overheating on this first) giving you a false overheating reading then likely to be the sensor. Get a genuine part to replace it though.
im gno try this today. The temperature on the temp gauge keeps on going up. The fan that keeps the engine cool isnt working at all really dont knw what the problem is but I orderd a temperature sensor frm ebay so gno try that out to see if it solves the problem. I have a seat ibiza 2001 iv heard its the same as 2001 polo, fingers crossed!!
Does anyone know where this very sensor is located on the vw Eurovan mv 2.8 vr6 I cannot find it found the blue sender one but not the sensor. Can anyone point me in the right direction?
I have a MK4 Golf 2.0L. My AC isn't working, and my car also won't start in the morning (starts after two tries). The AC clutch won't engage. Could this be the cause?
Hey there ! Do you have any ideea how I can remove my headlight washer caps ?? Because I want to remove the front bumber but I don`t want to brake those two pieces ..
Hi bmacvags! Thanks for all your videos. I too have recetly bought a vw golf mk4 match 1.6. Just done 70k and i have replaced the cambelt n waterpump. Recently ive noticed a bad smell when i turn the air conditioning on. I called the mechanic and he says he has not replaced or touched the filters. Im not sure what to do now...any suggestions?
Hi do you think this sensor has control over when the radiator Fan that automatically comes on when the engine gets very hot , say in traffic. when my car gets hot the fan does Not come on ? hope you can help , thanks.
I've got a Polo 9N, 2002. The fault that i'm having is intermittant, sometimes I can drive around in the car fine and others it's a nightmare.. diagnostics says Fuel Trim & Coolant Temp Sensor. Would this cause loss of power (as in i can put my foot to the floor but not go over 2k Revs in 1st) and a rough idle?
Hi mate...thanks for sharing that info. One quick question: is it me or is it difficult to find retailers who sell genuine VW parts? I've searched high & low online for a retailer here in Ireland selling the "real McCoy". Loads of new spurious parts from countless brands which are compatable but for the life of me I can't find a genuine VW coolant temperature sensore online! Where to you shop for your VW parts? Do you have a favourite online reailer I might be able to buy from and have shipped over? Many thanks.
i have a 2000 1.4 polo and ive been having issues with it since i bought it, rounning rough, loosing power cutting out while driving and idle, also sometimes wont start without sitting for a few minutes, changed leads, plugs, ditributor cap and coil. i have my car test coming up soon and not sure if it will be possible.ive had different mechanics say this and that is wrong and ive no idea what to do, how does the car act when this sensor goes as i dont want to give mechanics any more money as they have me broke, any help or questions?
@@BMACVAGS ohh sorry i think my English is not good i was saying after replacing a new temperature sensor my vw polo 1.4 start the engine after many attempts.
maybe a stupid question but: are thermostat and coolant temperature sensor the same? the reason I am asking is because I changed the thermostat couple of weeks ago and the temp of the machine on the dashboard has been working good. Now that it's cold I'm having idle problems until the car gets to 90 degrees. any ideas, thanks.
Space Hobby No, the thermostat goes inside the thermostat housing to regulate coolant flow. If your car is overheating, you could have a bad thermostat. The coolant temperature sensor plugs into the side of the thermostat housing and measures the coolant temperature for the ecu and dash gauge. If the coolant sensor is bad, your ecu may go into limp mode and idle and performance will suffer. If you change the sensor, use a new O-ring seal.
The coolant temperature sensor may have 4 pins, mine does. 2 pins send a signal to the ecu and the other 2 send a signal to the dash. The ecu side can fail even though the dash is reading correctly. Be sure to buy a genuine sensor, aftermarket sensors tend to be junk and do not last.
I watched this video and then done the job myself under a minute, thank you BMAC, you have saved me time and money.
145 dislike 👎 the puck. This guy is probably the best guy on here with full step by step when it comes to Mk4 golfs
i watched about 10 videos before i found this one. You made this so much simpler and easy to understand than all the others. Thank you very much. :)
Glad it helped, and thank you for commenting
You, sir, have just saved me a good several dollars and much un-needed headaches with my poorly behaving Golf.
Thank you
Very helpful video! Thanks!
The only thing I’d add is to check the old ring seal comes out with the sensor. Mine didn’t and the new one wouldn’t fit until I realised what had happened.
Thanks heaps mate, My car wasnt showing any temprature readings and I watched this and realised the electronics was disconnected, plugged it back in and where all good.
Thank you so much for doing these videos, because of them I've replaced my brakes and now the sensor. Your videos are invaluable and help get into working on my own car. Again thank you!
Glad to help
Thanks so much BMAC! did this to my golf and it completely transformed my car! idles smoother, much more power and better fuel economy! I guess this sensor was telling the ECU all sorts of incorrect readings! £33.80 from VW well worth it!
Excellent
Excellent video. Twice I've had problems with my mk4 1.6 Last year, sometimes it wouldn't start after a journey and the temp gauge was always on zero. AA man diagnosed coolant temp sensor issue and I watched your video on how to replace one. The mistake I made was not getting a genuine part, as exactly one year to the day the sensor went again, this time I was getting a false overheating reading on the temp gauge and 'check coolant service manual' warning. Again AA man said engine wasn't overheating. Got a genuine part this time and working good as new now. I've learned my lesson.
Cracking video. Hands up who got coolant everywhere when trying this (I did)
After replacing the HT leads on the advice of the RAC mechanic (cost about £50) I still had rough running so started a search on the internet where I found your video. After fitting a replacement sensor the misfire has gone and also the heater is working properly again. The only hassle was when I was doing the switch over. I pulled out the faulty sensor but when I tried to quickly insert the new one it wouldn't go straight in. The old O ring was wedged in there and I lost a fair amount of coolant while probing around to remove it before I could put the new one in place. That meant I had to top up the system with water and antifreeze but a minor inconvenience overall. Thanks a lot for your clear explanation and demonstration. It will get me brownie points with my wife when she gets back in the car. It's a 2001 Polo 1.0 by the way.
Excellent
Hello BMAC VAGS!
Great VID... I am about changing it on my Golf at this very moment.
My question is: This O ring mentioned by John, I cannot see this O ring in your vid.
What must I do with this separate O ring? .... which came along with the new sensor spare part.
Appreciate your comment on this issue.
Thankyou & best regards
Thomas
Why not just do a coolant change at the same time saves hassle of trying to quickly change over and pouring coolant all over.
Thanks for the vid. I couldn’t get the clip off and was worried I’d break it. So it was nice to see that part about the clip
Thanks for the video, very informative and proffessional. I feared the worst when my Leon would struggle starting and idle strangely, very relieved that it is such a simple fix.
what if is coolent is hot
After watching your vid I changed my coolant temperature sensor on my 1.8T 20vt. Awesome vids keep them coming. I'd buy you a beer if you were local or a henry
RR.RR was yours by any chance a mk IV?
Thank you for this. I think I might be able to do this even myself. Because of the specifics of your video I ordered the part and I hope this will work! I already changed the timing belt, water pump and the secondary pump. The sensor light is still going off like crazy. I hope this works! Thank you!
Glad i could help
It worked!! You saved me so much! and it was super easy! I have the new beetle and it was almost the same technique!
Love to hear that :))
just found this now hopefully this is cause of my problems on my polo!
Well done video. Thanks from the USA
Great information I've been having starting problems with my polo symptoms seemed the same as some of the tutorials I've watched so I changed coolant temperature sensor a few weeks ago not had problems since, cheers well pleased.
Its nice wen you fix things
always great help and info....even if you don't bother to answer questions. ...many thanks
Thanks for the vid. Have a Polo 1.2 and just done the swap. Its in a similar location to the Golf in this video and removal/fitting is the same. Tip I would say is when removing the old one and sticking new one the old ring can still be stuck in there so you will have to stick your fingers in to remove as I had with mine. And make sure you wear gloves and car is stone cold.
Great video, saved me time and money. Thanks (and yes I did lose coolant when the o-ring came out on the old sensor and I had to mess about swapping it over 😂)
Glad it helped
Superb video. Really detailed and very helpful. Thank you!!!
Quality video - nice and clear. Thank you 🙂
Very good! This is the info I was searching for. Mine is a petrol 2001 Jetta, but should be able to find everything as you made it so easy.
This guys are great to give out these videos,thank you so much,it`s been a while since I was taking my car to mechanic...doing a lot of this small repairs myself...thanks again
Glad to help
Very helpful indeed!
Thanks alot for sharing your knowledge!
Best regards from Germany.
Glad it was helpful! and thank you for taking the time to comment
Hi BMAC VAGS, great video, my sons car has a starting problem when cold, sounds like its not firing on all cylinders, lumpy, (no engine warning light),,but after a few times of starting, its fine, and runs beautiful when warm, 1.4 16v 9n engine cheers
Very nice presentation...I didnt know...how to do (change) sensor.......
Thank you...
Thanks for the video my car is running rather smoothly but the temp gauge is showing no value most of the time, I think the sensor is faulty BUT when inspecting it I also noticed the wiring was badly hurt, actually it even broke the minute I touched it, I solder back everything together and protected the wiring correctly, I will change the sensor and hope my issue is the sensor and not the wiring.
Really clear and helpful video. Great tips. My 6n2 polo goes into a low idle/stalling issue after about 10-15 mins of driving so i will try this sensor swap and hopefully it will help. Thanks!
good luck
BMAC VAGS
I firstly ordered one of the sensors but it wasnt genuine. I fitted it as per your video.
For a week everything was good. Then day 8 after 10 mins driving the temp gauge would fly up to max, then back to 90, then back to max with the temp warning light flashing...and so on. I checked and coolant level was fine as was oil.
Lesson learned.
Just now i have gone and fitted a genuine one (should have listened to you first!! haha)
All went well (havent driven it yet).
It leaked a tiny bit once i clipped it, but a wiggle and all seems well.
From under the car looking up, i can see part of the brass/copped part of the sensor (like it isnt seated properly)... but from above it looks like its in straight.
Could you confirm that the copper/brass is visible from the side facing the rear of the car from underneath for me????
It will put my mind at rest haha.
Thanks again!
you star
paulypj
i could be just paranoid. It doesnt seem to be leaking so i guess it must be in flush and correct right?
paulypj
i990.photobucket.com/albums/af29/paulpj2pj/sens4_zpsedf040d4.jpg
and
i990.photobucket.com/albums/af29/paulpj2pj/sens3_zps8c6db896.jpg
Yes that is the culprit
Hi I have 2014 VW touran which temperature keeps dropping when going down or at high speeds I had thermostat replace and water replace but still lossing temperature any ideas
Great Video, really helful- thanks!
GIVE THAT MAN AN OSCAR
I bought a lot which came with a new clip and an o-ring. Where does the o-ring go?
Thanks for the comment
BMAC VAGS ive got a 1.6 Petrol Bora so its pretty much the same as this 1.4 Golf (i own a 1.4 golf too), my temp gauge reads cooler the faster i drive.what do you recommend i replace.
Excellent video and videos. I have a VW Polo 1.4 (petrol) from 2005. It starts perfectly in the morning but if the car is parked more than like 30 minutes and less than 6 hours then I need to hold on extra long for the car to start. Morning start is less than 1-2 seconds and delayed start takes about 3-4 seconds - do you think changing the coolant temperature sensor could help? Many thanks in advanced.
Did you fix the problem with sensor replacement?
@@sorab777 Still the same issue, takes longer to start and I've still got the car! Took it to few garages over the years, no one can solve it - surprised it's still starting.
Hello I no it was 8 yrs ago you put this up but I'm unable to find a genuine vw part have you got a link or something please
"My" (it is actually the car of a friend) car is a Golf 4 with the 1.4 (AXP) engine.
Is it possible, that a missing clip of the connector could result in a false reading of the temperature sensor, although the cockpit shows the temperature?
I am asking because I have a major problem with running rich and three failed emission tests with high carbon monoxide.
After the first emission test (january 2024) with 10 percent CO, catalytic converter and oxygen sensor were replaced and CO dropped to 2.4 percent (february 2024).
The improved CO was very likely because of the new (and clean) catalytic converter. The old catalytic converter was black inside, what I saw months later.
Then the following parts were replaced and cleaned in chronological order.
1. Temperature sensor replaced
2. ECU replaced for a ECU (with deactivated immobilizer)
3. Throttle body cleaned
4. MAP replaced (engine has no MAF)
5. fuel regulator replaced
6. throttle body replaced
7. second oxygen sensor replaced and catalytic converter cleaned (as far as possible)
After every step, sparks were still black again after a test drive around the block
Third emission test in octobre 2024 was a fail with 6 percent CO.
I am now guessing that a false reading could be the reason for the running rich. A life test with a OBD2-scanner showed a fuel-ratio below 14 during most of the time during the drive. Oxygen sensor is listed with circuit heating (something like that).
I checked the oxygen sensor before with a multimeter. 12 volts are present at the 6-pin connector at pin 3 and 4 for the heating and heating has about 4 ohm. Heating should be okay.
I am the second "mechanic" (I am not a car mechanic). The first mechanic (a real car mechanic), who replaced catalytic converter, oxygen sensor and temperature sensor (on my advice) is a relative of the car owner . I did the work in summer beginning with the replacement of the ECU.
Engine had no problems with the emission in january 2022.
Great video bro
I have a 2.0 gti mk5 golf and I replaced both of my sensors and I still keep getting the p2185 code it won’t go and my fan is going crazy fast constantly
buen videos fue muy util,, reemplazar el sensor de temperatura,, no entendi nada por que el idioma es en ingles,, pero vi todo el video y me ayudo mucho.. gracias. ...
very good video as always. keep it up and wish more people to know about this useful channel. Good luck :)
Is it just when you turn on the AC or is it the same if you just put on the blower fan?
Also describe the smell
As soon as I replaced the new Coolant Temp Sensor I got code P2181. But yet my car still runs at 190 degrees as the normal and I feel no signs of overheating. (AC Works flawlessly etc). I cleared the code twice and within 2 days it comes back as pending. Do I have a defective Temp Sensor? I bought an OEM one.
I replaced the water temperature sensor today but the gauge still shows 90° even when the engine is cold. Any idea?
Faulty gauge or you have replaced the wrong sensor
Great VID. I am getting TERRIBLE working engine in very cold mornings. Misfiring or what feels like a misfire, hitching and stumbling, loss of power. Warmer mornings....hardly anything or once the car warms just the odd little hitch. Trying this next. Replaced camshaft positioning sensor.....NO luck....NO codes, plugs are nice and white so don't think it is a plug or coil....spark plug would show signs of fouling???
+ 1 great video to save money. Thanks Bro !
Happy to help
Do you need to bleed the system after this??
when you say side skirts do you mean the door moulding?
is this the sensor that is connected to the gauge on the dashboard? Mine is not working and I have iddling issues.
Dude you are amazing! Big thanks!
Hi
thank you so much for this video...it is VERY helpful. My temp gauge isn't registering and the car is idling like rubbish...so I will try this.
Do you have a video for flushing the collant?
Another excellent Vid.
Cheers.
Bmac would this cause epc light engine management and traction control light to come on, its come up with code p0106 map sensor on my 1.6 16v bcb but I've done all checks on my obd2 and map is fine and only thing a guy is saying is that my intake air temperature is high
What do you call the part it is connected to with all the hoses going into it? Part of mine is cracked and leaking but I don’t know how to figure out what the entire part is called
You've really helped me alot with your videos, I never subscribe to people but you deserve one! I found a temp sensor on ebay from VW UK, for 4 £, do you think it's the real deal or what?
Marton Muren No that is a copy
Well first seat I've ever owned and I have this for a fault but it certainly explains the vast consumption on fuel and the god awful idle issues
I cleaned the throttle body on my polo 6n and the idle jumped to 2000revs.. Thought it just needs to relearn the idle position, but it turned out to be the coolant sensor! The mechanic that i took it to for vag com TB alingment said to me straight on i need a new TB (which costs 300€), which seemed to work fine to me, so really, if you have any problems with how the engine runs, it pays to check the coolant temp sensor.
is the ac cold?
hello
thank you for this wonderful video.
i had a question.after replacing the sensor do i need to bleed the air?
thank you in advance
I watch these vids just for the opening tune
Yoi can buy the song from my website WWW.BMACVAGS.COM
BMAC VAGS i bought an mk3 golf 1.6 with 101 hp. the car has a problem with v
the cooling temp. When its running stationary the temp goes normal to the haf and when I drive in the highway the temp drops... is this an thermostat problem or a coolingsensor? and when i am parking and im turning my steering i hear an cracking noise like an old door that opens slowly... is this the steering joint?
My 96 999cc Polo had an oil leak. Now fixed, but now idle is 2000 to 2500rpm. It's gone mad! Could it be the coolant sensor. So far I have replaced the throttle body, which is now disconnected so its really rough to drive, but at least the thirst has gone down a bit and she's not revving at the lights and upsetting pedestrians!
I have done this but the gauge Dashboard is not registering temperature any idea why I replaced this part thinking it would fix this problem
Excellent Video, will have a go!!
Always test it before buying one if you have a multimeter set to ohms mode and (for this one) put the probes between terminals C and D on the sensor, room temperature mine was reading OL and 850 ohms across A and B - totally screwed when C and D should be reading 1500 - 2500 ohms at nice room temp
What is that sensor on the left of the green sensor.
The one that has a white head and then its black ?
Nice videos man, im having all manner of problems with my vario tdi. It wont start and stuff so im gunna see if this helps
You should try to isolate the problem first, find out if it is a fuel or electrical problem first.
This one was not my car so I won`t be able to make a tappets vid. Didi you request a side skirt video?
Very good video it helped a lot
My 2005 golf TDI. Same sensor, same connector, same kind of location - but when I pull it out, it leaks diesel, not coolant. Now I’m confused.
I have changed the coolant temperature sensor in a Passat but when I put on the horseshoe clip to keep it in place it clips in place but doesn't hold the sensor in place securely. It does take some force to pull it out but I can pull it out and the engine light has come on again since I placed it. Do I need to replace the rubber O ring or what am I doing wrong?
Hi, I can't find the sensor on my car it's an golf mk4 2003 1.4 same as yours but the engine layout is slightly different I've tried looking for it can't see it anywhere any advice?
Would this be able to fix a fluctuating temp gauge ? I have an issue with my golf mk4 where the gauge fluctuates between 0 and 90 quite often. Would I also need to flush the coolant ?
Good vid I have temp light that comes on in dash display but there is coolent in container could temp sensor be the cause ??
I would say so. If the temp gauge is stuck on zero all the time, or it's going to the red zone falsely (get garage to check the engine isn't actually overheating on this first) giving you a false overheating reading then likely to be the sensor. Get a genuine part to replace it though.
im gno try this today. The temperature on the temp gauge keeps on going up. The fan that keeps the engine cool isnt working at all really dont knw what the problem is but I orderd a temperature sensor frm ebay so gno try that out to see if it solves the problem.
I have a seat ibiza 2001 iv heard its the same as 2001 polo, fingers crossed!!
Good video. Isn't the tappets a big problem with these MK4 1.4 engines? Will you be doing a video on that?
Youv just saved me a ton of money lad big respect 😂
Where can I find this on a 1987 Polo? My Polo idles very high and the temperzture gauge doesn't do anything so I think the sensor is broken.
I think that was very helpfull.Thank you.
Does anyone know where this very sensor is located on the vw Eurovan mv 2.8 vr6 I cannot find it found the blue sender one but not the sensor. Can anyone point me in the right direction?
Great, just done the swap, thanks mate
I have a MK4 Golf 2.0L. My AC isn't working, and my car also won't start in the morning (starts after two tries). The AC clutch won't engage. Could this be the cause?
Hey there ! Do you have any ideea how I can remove my headlight washer caps ?? Because I want to remove the front bumber but I don`t want to brake those two pieces ..
Hi bmacvags! Thanks for all your videos. I too have recetly bought a vw golf mk4 match 1.6. Just done 70k and i have replaced the cambelt n waterpump. Recently ive noticed a bad smell when i turn the air conditioning on. I called the mechanic and he says he has not replaced or touched the filters. Im not sure what to do now...any suggestions?
Haven't you forgot the O-Ring seal while replacing?
Thanks
Great video , only issue is , the o ring lol
Great video. Where its located in the2009 Volksgawen CC serie and if it always green color?
Hi do you think this sensor has control over when the radiator Fan that automatically comes on when the engine gets very hot , say in traffic. when my car gets hot the fan does Not come on ? hope you can help , thanks.
Dennis V5 thank you so much 👍
What is the engine size of your vehicle? Have you subscribed?
Top fella, thanks (again)!
Do you need to twist the sensor or is it just pull and push??
I've got a Polo 9N, 2002.
The fault that i'm having is intermittant, sometimes I can drive around in the car fine and others it's a nightmare.. diagnostics says Fuel Trim & Coolant Temp Sensor.
Would this cause loss of power (as in i can put my foot to the floor but not go over 2k Revs in 1st) and a rough idle?
Yes the coolant sensor can cause lots of problems
I have a golf 1.4 E. Is the sensor smaller on that than the one yiu used?
Hi mate...thanks for sharing that info. One quick question: is it me or is it difficult to find retailers who sell genuine VW parts? I've searched high & low online for a retailer here in Ireland selling the "real McCoy". Loads of new spurious parts from countless brands which are compatable but for the life of me I can't find a genuine VW coolant temperature sensore online! Where to you shop for your VW parts? Do you have a favourite online reailer I might be able to buy from and have shipped over? Many thanks.
If the little clip does break when pushing back on it. What should I do?
Get another one, in fact another one should be supplied with the new sensor
Could you direct me to where?
lets talk on fb
i have a 2000 1.4 polo and ive been having issues with it since i bought it, rounning rough, loosing power cutting out while driving and idle, also sometimes wont start without sitting for a few minutes, changed leads, plugs, ditributor cap and coil. i have my car test coming up soon and not sure if it will be possible.ive had different mechanics say this and that is wrong and ive no idea what to do, how does the car act when this sensor goes as i dont want to give mechanics any more money as they have me broke, any help or questions?
There are lots of things that this sensor can effect, but this is the first thing you should change.
alright, ill give it a try after the weekend and ill post how i get on.
Look forward to hearing from you
Can you give me a link where I can buy an original sensor for an vw golf mk4 1.6 petrol from 2004
will this cure my fan not working and overheating?
What if you put a new temperature sensor with same part number but when you start your car it start after many attempts ?
I dont understand the question
@@BMACVAGS ohh sorry i think my English is not good i was saying after replacing a new temperature sensor my vw polo 1.4 start the engine after many attempts.
maybe a stupid question but: are thermostat and coolant temperature sensor the same?
the reason I am asking is because I changed the thermostat couple of weeks ago and the temp of the machine on the dashboard has been working good.
Now that it's cold I'm having idle problems until the car gets to 90 degrees.
any ideas, thanks.
Space Hobby
No, the thermostat goes inside the thermostat housing to regulate coolant flow. If your car is overheating, you could have a bad thermostat.
The coolant temperature sensor plugs into the side of the thermostat housing and measures the coolant temperature for the ecu and dash gauge. If the coolant sensor is bad, your ecu may go into limp mode and idle and performance will suffer.
If you change the sensor, use a new O-ring seal.
The coolant temperature sensor may have 4 pins, mine does. 2 pins send a signal to the ecu and the other 2 send a signal to the dash. The ecu side can fail even though the dash is reading correctly. Be sure to buy a genuine sensor, aftermarket sensors tend to be junk and do not last.