COMMON MERCEDES OM651 CDI OIL LEAKS! + EXTRAS WHILE WERE IN THERE! HOW MUCH!?
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- เผยแพร่เมื่อ 7 ก.พ. 2025
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Happy new year everyone!
I have been reading through your comments and it seems you all want more 651 content! Well note made, let me see what I can do!
All the best to you all! Please subscribe if you havnt already as I would like a TH-cam plaque 😂😊
The plaque dont matter.. you already double platinum in these streets ❤
@@sprautos have you ever had to do replacement of a crank shaft pulley/vibration damper on om651? A video would be interesting
hi whar ar common problem on gle 450 gle yr from 2022 to 2023 im planning to purchase an use one
Bonjour comment évite ces problèmes avec le moteur mercedes-benz om651 à tu une solution précise pour que cela n'arrive pas merci de me donner votre avis
A series of videos on the 651 would be a great resource for owners and mechanics alike.
Populate engine so let’s see what we can do. 📺
Sounds good.
101%
@@sprautoswould love to hear what you have to say on the timing chain. Should I change the chain and tensioner as preventative measure?
the worst part about every SPR video is that you have to wait for the next one.
Thank you so much for the information.
I don't know how popular the OM626 engine is up in Britain but it would be greatly appreciated if you could get a video with that one.
Great Vid… I own a 2012 C Class with the 651. I do all the maintenance so more vids on this engine would be great. Thanks for the work
+1
+1
It irks me the amount of plastics used like the rocker cover I think most people would be happier to pay a little extra rather than plastic that goes brittle with age and causes leaks. Great informative vid as ever Sam.
in taiwan, they make aftermarket covers and other common plastic parts into steel/aluminum parts.
For the last 5 years, I've owned a 2014 AMG Sport e 220 with the 651 engine. I've had it serviced regularly. It's very quiet with plenty of torque for overtaking, a real joy to drive. The only issue has been an intermittent fault with an LED rear light which meant replacing the whole unit. What was wrong with the old lights, you could just replace a bulb? I would definitely recommend owning one that's been looked after.
Well done SPR, please keep the 651 videos coming.
My 651 E220 has 350,000 km on it, I've done the inlet manifold on it as it was cracked, the next job is the RC gasket and I might do the Tinning chain while it off. Great info for us mechanics and the DiY'ers alike. All the Best.
Good going
Giving me nightmares after changing OM651 engine in my sprinter last week. Seems a decent engine if maintained properly.
Now, this is content we love to see. I've got this engine in my S204. You showing us these common problems make us aware and just take an extra couple of minutes to check for leaks whilst doing the usual monthly fluid checks. Fab job Guys :)
Thanks for a great video. This is exactly what has happened to my cherished 220cdi. at about 89k Local specialist has carried out this work but seeing your video it all makes sense.
More videos on the 651 please, do you recommend changing the water pump and its housing, whilst you're draining the coolant on cars over 100000 miles? Thanks
Great video! We’d love to see more content on the OM651.❤
Hi sam another cracking video i would like more videos on the 651 engine across all variants would also be good i had a 2014 e250d with this engine and a 2017 gla 200d with the 651 but look completely different fuel filter on the gla is a clamp on the bulkhead rather than that cooler but the e class was same as you showed. Are there other differences ect. Also the gla is the engine just a detuned 220d or mechanical changes? Keep the videos coming out yes its time but they are good and getting better cheers steve
Another great video , and detailed description of all jobs undertaken. The best/worst bit is when you tell us the cost to the customer. I am fortunate enough that I can do all my own maintenance work and repairs so although the prices always seem high , I always enjoy the fact that I can tell the missus how much I’ve saved . And then spend my savings on more tools that I don’t need 😂😂
My 2010 E220 is on 163k miles and needs these jobs doing. I want to keep the car at least another 5 years so will be investing in the required maintenance in the coming months. Apart from regular maintenance my only other repair has been a coolant pipe replacement. Not bad for 3 years and 40,000 miles in my ownership. More OM651 content please!
Today we're performing a resection of the upper right quadrant of this patients liver. While we're in there the pancreas is also going to be looked at, and the Whipple procedure either full or partial considered.
More videos on the om651 engine please
Anything om651 car or engine will be great i own a c250 w204 cdi on a 14 so will definitely be interested to see any work on these.
would it be cheaper to just replace the seals on the oil cooler rather than change the entire part?
I have a 2013 W204 with the 651, so would like to see more videos on it. No oil leaks on my car so far, so thanks for the info on parts
Thanks, great video! Please share more works on om651 engine. Any tips, tricks or particular tools how to remove stuck fuel injectors on these engines? Thanks
Had them stuck on the Sprinter. I'd do this 1 by 1. I've loosen the injector bolt half or full turn and drove until injector pops, then tighten it back, drive home and pull it out, engine MUST be hot. Sometimes they pop right away, sometimes it would take days, depending how stuck they are.
I did the same job myself last month. But I replaced the intake manifold as well. It was filled up with carbon as well. And cleaned the valve-inlets as well, of course.
Very important to mention that you will get a new PCV with the rocker cover, which is a very common failure point. Especially on turbo charged vehicles.
Very good point 🙏
👍 - Great watch - Cost feels more palatable knowing that it'll likely run cleaner with the inlet carbon deposits cleaned-up - so not just a couple of oil leaks fixed! As for the plastic cam-cover - personally I worry more about the plastic sump! 😆
Another great video thank you mate. This om651 we have in many models they alright but if you look after you have. Personally i recommend change engine oil every 5-6k miles max. That’s for the engine condition and chain tensioner 😂all the best mate 💪
Totally agree
5k max 💯💯💯💯💯
Superb video Sam as always but this one was special to me and probably many many others too... I have been praying for you to do this exact video, thank you. Yes, yes, yes, and yes please... can you do more on the 651... I am gutted you are not taking customers as I need the exact job doing to mine. Rocker and filter housing. I had the fuel filter housing done by a so called merc specialist in MCR area and every time I take it the bill is in the 1 to 2K area and everytime there are rookie mistakes... example. left the oil filler cap off 1st time... 2nd time left a fuel line off... my confidence has gone with him and I don`t know where to take it now.... I`m stuck with a massive oil leak and I just want my beloved OM651 to be right... I have spent a fortune trying to save it ... its a lovely 2010 estate S204 and my pride and joy. I've had suspension / brakes / gearbox / diff and many other things done and still cannot use it.... so yes please. I am going to have to do it myself if I can or find someone as good as you are.... Thanks a million for this video... Cheers..from me, Chris... BTW Can anyone recommend where to go near Manchester.. Sam your the No 1 choice..but alas mate !!!
Mate, costing - one of the most exciting parts of your video. But I'm fully satisfied with your professional approach
Lovely propper clock on dashboard
Great vid, more the better on om651!
Not a terrible price. Would removal, cleaning and remounting of the intake manifold make sense at that depth of disassembly? Great video. That's not a DIY job for the amateur. That, a DPF clean and pressure differential sensor change and it's almost new.
Yay He's back!
Awesome video and one of your most informative ones! Especially for those who got a used c class like me because thats the only way they can afford to drive some kind of merc. Much appreciated!
Defo more vids on this engine. Got an old 55 plate W203 with this engine, its smooth but a little noisy when cold, still shes on 96k and almost 20 years old. Been well looked after so im a happy man.
Brilliant video and information, for sure this format is a winner, thank you and your team at SPR, looking forward to a brilliant 2025 watching you.
Another great and informative video Sam and crew keep up the great work 👍🏻
Oil leaks are not always external on this engine, they are quite often "internal" too.
I am seeing oil in the coolant expansion tank and I am using a "sucker" to remove it once in a while as it's not that severe.
Been in a few garages, and I was told that most likely, it's the oil cooler (the whole thing replaced in this video including the oil filter housing) as it's quite common to crack from the inside and oil mixes with coolant.
To clarify, oil in the coolant expansion tank on this particular engine can be due to the following (from most to least common):
1) Oil cooler
2) Gearbox oil cooler
3) Head gasket
4) Old coolant - never replaced
@SPR Autos, how can you tell what is faulty and needs to be replaced in this case?
I guess for the head gasket you can do a compression test but what about the other two?
Another very interesting and detailed video Sam. Always great content from you. Best Mercedes/AMG channel on TH-cam. Hope you get your plaque soon, you deserve it.
Top video would love to see more work done on this engine and always Good to see you breaking down the cost 👍
thanks for a super vid. I am having a E 250 651 engine. When changing my filter housing --the new had 3 boltholes and the old only 2
Do you recommend to make a treaded hole for the extra bolt. ?? You had also 2 in this vid and 3 in the part.
Regards Peter Denmark Happy viewer.
Sam, hope you had a good holiday with your family. Fantastic video as always.
Thank you 🙏
Hi Sam, another great and informative video. I had a E class 250Cdi as a company car new in 2013, Platinum Silver with a light gray interior, previously had two BMW 5 Series, but fancied a change. What a lovely car, smooth, quite refined and so economical trip average at 100k miles was 54.5 mpg! Had to have a new torque convertor under warranty at 84k, should have bought the car off the company really, but we had a new Jag E pace at home at the time. I totally agree with your ethos when having to strip down large parts of the car replace all you know that will for the future. Have you had to change many torque convertors on these cars, if I remember rightly it was something to do with a lock up clutch? 😀
Great video again. I have a 2016 GLC with the 651 engine in it. It's only done 60000 miles and has been well serviced. Really useful to see you working on them and to look at what potentially can go wrong with them.
Ok, how many of you got up thinking someone was at the door 🙋♂️ 😂 Another informative vid 👍 I’ve not had a Merc in years, but still enjoy watching the channel.
Glad you enjoyed it
Very informative well done
Great work AGAIN boys keep up the good work your videos are brill 🇬🇧👍🇬🇧👍🇬🇧
These vlogs are really helpful. 👌
Keep ‘em coming 👍👍 interesting Sam my 270 cdi has the same oil cooler problem makes hell of a mess from the gasket , shame your 2000 kliks away 🤣🤣 great videos
1800£ for what you done and changed it's not a lot at all,great video as always ❤
great job as always lads keep up the great work
Happy New Year SPR. Great video and perfect opener for 2025. Sam, I have the exact same issues with my 2010 S204 M271 CGI. Can I assume that both the rocker cover and fuel filter housing need replacing as in the vid ?
Another honest opinion and great video... get John on more often 😂 anything in the pipeline for the C220 w204 engine or even issues or buyers guide ? Great content as always from a local business👌👍
OM651 timing chain tensioner, timing chain, sprockets, guides and guide pins plus oil pump replacement video please
That would be a good one
Great video thanks for sharing. Regarding the 651 sounding different to each individual model. I find my e250 is a littke bit noisey from idle if i put my foot on the accelerator but once it gets up to a nice speed its dead quite. I suppose its a heavy car the e class. Its not the sounding deisel in the world but its not the worst either. Like said when cruising and you put your foot through the pedal moderately its actually a lovely responsive engine. Only really noisey when pulling out from and idle position when really floor it, other than that its a great quite engine with plenty of torque. It doesn't sound as good as my previous 648 IL6. But its a lot more fuel efficient 👍
A great channel to watch, your effort and knowledge is much appreciated, just wanted to say that i really enjoy watching and learning. Many thank.
Those copper washers at the bottom of the injectors can be a problem causing 'black death'. Apparently they need to be replaced at every 80,000k.
Great job 👏 John
If I ever by a Merc ,I would use SPR Professionals at work
Another very informative video, thank you again. I really liked my W204 C220 - nice and torquey.
I find watching you trying to do the intros very entertaining & good on you for leaving it in .
Cheers Tom, yea it’s worth leaving as is makes it’s more human as you can all relate
@ yeah definitely, there’s lots of nice little touches throughout your videos.
Please make a video of OM651 timing chain replacement.
Thanks!
GOOD MORNING
First of all, I would like to thank you very much for all this information and I wonder if it is possible to make a video demonstration of cleaning the intake part of the M651 engine.
SINCERELY
Oil filter housing leak is a bit BMW.
I like Grieg, seems genuine.
I know this is not related to your latest video, but I’m thinking of buying a SLC. I know you’ve covered some stuff on SLK. Any particular thing to look out for a more interested in the 300 or the 43 SLC? Any little guidance would be very much welcomed. Keep up the videos. Absolute must watch the learn so much. 👍🏼👍🏼
Hello. If you get 2 minutes. Can I ask how reliable are the 651. You heard alsorts. The main thing that’s stopped me buying one is the timing chain. I’ve heard there not very reliable and it’s fortune to get new chain replaced. Oh and yes please don’t stop the channel. I love it.
There not bad, chains can wear anywhere from 100,000 miles - 200,000 miles depends if the car has been serviced correctly using proper oil and filter.
@ hi. Thank you for taking the time to get back to me. I really appreciate it.
Taxi driver here... My 2018 om651 has 500k kms... everything on the engine is original exept for the dpf pressure sensor
I maintain the car at half what Mercedes says
The trolley for removed parts is awesome! Where did you get it? What was its original use?
Thanks Sam keep the videos coming please.
Good video and informative. Great job.
Brilliant video yet again, Sam.
Good to see you again Sam. Happy New Year.
Cheers, mate, great video once again, my knowledge of Mercedes cars is defo getting better
Intakes are known for splitting on OM651s too, across their top seam / under the fuel filter housing. If you’ve got oil under the fuel filter housing there’s a good chance it’s gone. Listen for a boost leak that side. If you’ve got the EGR, throttle body and fuel filter housing off you’d be well advised to put a new intake on too (only around £150 genuine MB).
Your right
The parts that you are going to clean, is it possible for them to be cleaned while still in the car? For instance, using a product to clean as a preventive measure. Also, apart from the oil leak itself, are there any other signs that the gaskets/rings are on the way out?
As ever keep up the good work..
Just the one i was waiting for . great video!
Another good video Sam, I know yr a pro and the other guys, but looking at how compact engine bays are, have you ever done a job and forgot to put something back and had to strip down again
Oo yes of course, one little distraction is all it takes
Worth keeping the injectors upright, I use a box with four holes.
It can cause starting issues.
Also nearly worth doing the intake manifold when doing the cooler.
I’ve heard to stand them up a few times going to donit next time round
@sprautos another trick that has had some success if the injectors have been out and are causing a non start is to take them out again and gently warm them up with a hot air gun, you can see bubbles of air come out in the diesel.
Anyway great videos on MB vehicles👍
Use to service sprinters 906/907 ect with the 651 , was pot luck if they sounded nice or rattled , even when serviced constantly , many way past 250k on the clocks, although,
I can’t actually remember doing any oil filter/cooler housings 🤔
Did plenty of water pumps, fuel filter housing and rocker covers, inlet manifolds ( earlier ones ) .
The occasional vacuum system when the water pump sleved half put coolant into the vac pump and filled every transducer/ change over valve with oil. Exhaust manifold studs snapping ( more on commercial than passenger OM651s mind )
Then the lovely 654 came out…..
Your right you get some that sound sweet and other that sounds like a black cab taxi
Great Video! I have recently had to go in twice to replace the oil filter housing and oil cooler (two separate leaks in the space of a year). Had I known this beforehand, I would have just asked them to change it all at once! Look forward to any other common OM651 issues as I plan to keep this car for as long as possible. Currently on 150k in a C250.
would it be cheaper to just replace the seals on the oil cooler?
A healthy new year to all of you !!!. Yes more videos on this engine would be appreciated, I have a C250 diesel with this engine, absolutely love it, twin turbo gives performance with easy high 50’s MPG on a run, averaging 44 mpg. EGR valve etc you showed was heavily coked up, should it be regular cleaned ? Thanks.
Great content btw, have an older version of that engine
Great video. So clearly explained and I’ll need to do this same job on my car.
Did you need to replace any vacuum hoses/fittings or the like?
Brilliant vid thank you and yes please definitely more on this engine.
Great job! Thanks Sam, another good video 🙏
Nice video
Keep them coming
Happy new year
excellent, i wait for other videos on the OM651
I am so admirative of you expert mecanics able to handle those important engine jobs.
Can you do a video on oil dilution on this engine please
Very informative thanks
Hi Sam! Nice video! Could tell what kind of grease is that you use on the injectors? Thanks!
How would you recommend cleaning off the carbon? Thanks. ❤
Good work 👍🏾
Oil changes are the most important thing to do.. AND Change The ENGINE OIL MUCH MUCH SOONER THAN WHAT THE SERVICE BOOK SAYS.. AND THE DEALERSHIP SAY. YOU WILL NOT HAVE TROUBLE WITH YOUR ENGINE AFTER YOUR WARRANTY RUNS OUT.. Don't put your self in to the situation of buying expensive parts after the warranty runs out...
Sam, your should add a "While you're in there..." tee shirt to your merch shop 🙂
Yea I think I should, need someone to design it for me
Owners must remark about the before and after difference on this job. I would imagine it is night and day.
Cleaning an egr valve is always a satisfying experience 😊
Your right
Thank you for a great video 👍 more of the same please 🙏
Please continue with om651 service work.
Great watch 👍
Happy New Years Sam✅ Top Job and that Carbon really clogs up the system
You’ll be busier than ever with all of problems happening in Europe currently
Cheers Frank👍
Have you ever had the valve cover bolts come loose on these engines?
I like this video but it didn't make me wanting to replace my OM648 car with OM 651. 😀
Great video as usual Sam. Really like your approach to creating this content. Did you have to cut the injector seats before installing the new washers?
No just a good clean out I don’t like loosing material cutting the seats.
@ Best channel on here mate. Keep it up 👍