Competition winner - David Cowan - sprautos@gmail.com really common job this guys, if you own this engine you may of had this done, if you haven't there is a good chance you may in its ownership so will give everyone an insight to the job. Although this video makes it look very easy this is actually an 8 hour job! Hope you enjoy all the best everyone.For those asking this job with the turbo was about £2K

Did this job at home with help from a couple of friends after being quoted £2,000 by my Mercedes Dealership. It's a BIG job, one whole day to take everything apart and another day to put it all back together. I'm not scared of this engine anymore! Mercedes GL350 X166 - 2013

Like somebody said. It's like watching "Open Heart Surgery" ! Gives one a real appreciation of having the specialist mechanic do this type of intricate work.

It’s very refreshing to see people who no what they are doing I wish you were near to me.

Hats off to the owner for bringing it to you and keeping this lovely car on the road.

It's like watching open heart surgery! The complexity of these things is fascinating, and if anything it's a wonder there aren't more common issues, gives you respect for the engineering involved and also how important a specialist is when it comes to cars like this. Also, the W211 is one of my favourite cars, from a time where comfort was king. Big luxury barge of a car :) Was in Cyprus recently and 90% of all the Taxis there are W211. Taxi driver wanted me to go into business with him importing them from the UK 😂

That was very interesting. And you're the first garage I've seen that uses a procedure manual built from experience with the parts included to make sure nothing is missed from the job. It must make a great training tool also. I'm surprised more garages don't use this. 11k views from 7k+ subscribers means there's a lot of sharing and recommending being done. A sure sign of a quality channel !

Seeing a proper specialist, and honest, mechanic work is amazing!!! Most would cut corners unfortunately... Keep up the good work

Nice to see an OM642 💪🏼

2 other common issues I have found over the years is the PCV on the back left head faiils which allows the oil to travel down the pipe and into the "Y" pipe and then out of the large orange seal. The turbo ends up being changed thinking it's leaking oil when infact it's the PCV thats failed instead. The other one is the large green O ring in the inter cooler pipe at the top of the engine. It's either missing or not giving a proper seal.

Quality lads & the reason I will never take my Mercedes anywhere else!

This is one of the best engines Mercedes made after 2000 . I've had it in many vehicles including jeeps . As long as you keep it up with preventive maintenance and change the oil every 8000 km it runs and runs and runs ... as long as you're not scared to do some stuff yourself , it's not really expensive . Love it , recomend , 5 stars , 10 out of 10 .

Your attention to detail is first class. Glad I decided to buy a boring 2.1 4 cylinder C class now!

Ive watched thousands of videos on KZfaq. But I have not ever seen one as honest and thorough as this one. "Saving the customer thousands", .....lol.....That does not happen these days! I live in the United States and have a 2009 E-320 Bluetech that I love and have had no issues with at all. But I am retired and live on a fixed budget. Im trying to service my vehicle myself when I can. So I appreciate you taking the time to make this video. It helps more people than you realize. I would never attempt a repair of this magnitude but it showed me the warning signs, and whats to be expected if it happens. Thanks again for taking the time to make the video and being honest......Take care.... (New subscriber also) Prost!

So glad my Merc mech advised me to avoid these engines and the v6 petrols. I’ve got a R129 SL320 straight 6. He told me to avoid the V12 as it would cripple me financially. Wish I’d bought the R129 SL72

It's a systemic fault. The friggin o ring! Used everywhere in automotive today, designed to fail. The sheer amount of work caused by this feature is mind blowing.

What a star !! Saved me 2 grand !!!! We can eat this month thanks for this super tip !

I just sold my 2012 W251 R350 Bluetec and I past your video to the new owner. Thank you for your great video!

superb stuff... i have the exact same problem with my w211 e280 cdi. its only done 49,000 kms.

Late arrival, I just finished this job on my new to me 06 ML320 cdi. The job itself can be fiddly, but it's all the cleaning that takes time. It was n good experience though. Thanks SPR for sharing vid like this making it possible for a guy like me to keep my ML on the road.

Amazing! How tightly packed are all those components! If that was me, I would be looking for those washers and nuts that are making a bid for freedom. When I was 21, I tried cleaning and rebuilding a Stromberg carburettor on my Hillman Imp, without realising I had lost a washer down the inlet manifold - expensive mistake! Respect to you and your team!

I so like your channel. Just, what I did to my 648 straight 6 cdi was removing the flaps altogether. The whole system is just to vulnerable. Oh, also disconnecting the egr. Life is good. But I’m living in Texas. Probably not possible in the UK. I feel so sorry for all the regulations you have to deal with. And just to get some more oomph I had my ecu remapped by Renntech. You got to love these diesels. Pretty rare in the USA.

When I done mine I removed the intake swirl flaps from manifolds with pliers and for turbo only the actuator I changed to the corect G227 I think code, purple gaskets are made of viton which should last longer ,not hard job but long time and yes change all gaskets clean all carbon and should be ok. Good video.

I did all these jobs. my self. yes a biiiggg job. but the turbo is still running more than 90 000 km.. even when that turboproblem shows. but a restart and it all good for weeks...sometimes mnd. just love that strong engine. and love the torque.

What a great video guys, my 221 is going to get the same treatment shortly. Nice tidy setup and professional.

After discovering your channel and watching the videos i will definitely drive my Merc from Leeds to this garage to get it serviced. Great job guys keep it up.

Please please make some DIY videos for us OM642 owners of the most common problems. Thank you for this video, so informative and entertaining!

I had a c350 cdi (276) before my C63 , both w204's , it was a great car , really pulled well , had to change the thermostat though at around 75K , they seemed quite common for failing great content , really being enjoying it - thankyou

Nice job. Now I’m glad I have the OM648 inline 6. :) On that I have replaced the heat exchanger seal in half an hour.

Great videos, find myself watching them even though I don’t have a Mercedes 😅

The other " while your there" job to do is replace the O ring on the EGR cooler plumbing where it pushes into the inlet manifold. (7.10)The other end of the cooler from the flange. I had to do this whole job because that O ring failed and leaked coolant at a huge rate. Within a couple of days of first seeing a leak under the car the engine wouldn`t hold any coolant. This was an OM642 in a Jeep with only 140k on the clock. Good excuse to do the Oil cooler seals before they leaked so no big mess in the engine valley to clean up.

Great idea that Sam about putting all the particular job bits in a folder. Presumably you restock after every job? 👍👍👍 I too do many jobs on Rover 75's which the owners don't even know about , we find many faults which they were not even aware of ⚠️ They will only thank you when they have not been let down by the car 5 years later 😅

As a precaution you can place a piece of thin rubber under the plastic intake pipe, then if leaks occur the oil will exit down the outside of the turbo not leaking into the swirlmotor thru its connector. Also use the revised black rubber skal on plastic inlet.

Watching this makes me so glad I drive a car with the OM648, ok I have the SBC pump to worry about but these Vee config Diesels and not only Merc one's either are utter crap.

A very strong engine, I had a 320 and now a 350, fortunately never had the oil leak issue (Yet), but the 320 did have the swirl flap issue! Lovely to see Sam and John doing the job properly. Most garages would likely only tie the flaps open and make do. I speak from experience! Keep doing what you do, and as you do SPR. See you in March. 👍🏻👍🏻

Great Job,and forward thinking for sure Looks like the owner has neglected a lot of regular maintenance All the best cheers Frank

Great information. Very professional

Very informative, i really like your attention to detail top notch. I like your aluminium linkage upgrade for the swirl flaps and inlet motor replacement, i would not get the same attention to detail at my local Mercedes specialist. Great work!

Well done guys. Mine 2011 350 CDI CLS have done 83000 miles and I believe at one point, I will have the same problem.

Great informative videos always keep it up mate u are getting better n better by the day You are a professional person at what u do

Just done mine and some in house flaps delete, enjoyed the video, thanks.

I have the early stages of this issue on my ML350. I live down south but think I'll make the trip north just to have it looked after by someone who knows what they are doing!

Beware: genius at work.

Very informative video, we have a C350 AMG estate with the V6 engine which needs stripping down 😕 so looking to sell it on as now have a replacement car, wish we lived closer to you as would love to see it on your channel!

Nice work bud

I think you should explain to the customers what you do and why you do it, like in this video. They’ll appreciate you more for it.

Real masters of their craft -😎 great to see

An oil catch can circuit between CCV & turbo inlet would reduce substantially amount of oil that cascades down into valley from batwing turbo inlet seal. In my opinion, that is true source of most car om642's oil leaks. It soaks swirl flap motor, splashes all over turbo pedestal & then pools around oil cooler before draining through that weep hole in valley near bell housing. These issues don't really exist on 642s from Sprinters because they have a much better air intake system & larger oil pan that can accept 5 more quarts of oil. Every time I see another om642 oil leak video, I thank my lucky stars that I still have an om648 w211 on the road.

Great video, as always. Very interesting and informative. Keep them coming.

big thanks for the link, ill go buy them and change everything on my glk 320. thannnnnnnks a lot.

Use heavy oil on om 642. Use 10w60 , or 15w40 weight oil minimum and you’ll be very happy with this engine. It’s after several engine seized.

im so glad channel found it in australia,your customers must be so happy ,what a bout a branch workshop in sydney australia ,we need one.

Great video guys, it would be nice to know a rough costing for this type of job since it’s a popular fault. Gives us a heads up so to speak😂😂

Love your content, keep up the great work!

I have this issue on my ML280cdi (OM642) I had the back pressure sensor fault, my dad who's an ex mechanic thought he'd sorted it. He's 74 bless him, if I'd known this earlier I wouldn't have had him do what he did to try and solve it. I'll be booking it in here and getting it sorted 😢wasted around £200 on parts as it's started again with the kangaroo hops 😩

Another excellent video, wondering now when my e350 cdi with 124k miles on will need that job doing😊 all was good when recenly b serviced my my local independent merc guys.

New subscriber, due to the High Peak link Glad i found you , like the straightforward ,understandable commentaries, Thank you

Awesome! Love the details covered.

RE the swirl flap rod, great when you get one over on the Manufacturer who won’t just sell the part you need but the whole assembly 😀

At first, I thought that you were going to be working on a failed radiator/trans oil cooler which was what put paid to my E211 270 transmission - good old Valeo rads! Enjoyed this one though!

Will be taking my GLB to you guys for servicing soon

Great stuff, this video has been really helpful as my grand Cherokee has the Mercedes 3.0 v6 OM642. 👍

Pure professionals. I am thinking of buying a 2013 CLS shooting brake 3l Cdi with 130k mile on her. Very well serviced with the cooler gaskets already done apparently. Just wondering would this need to be done again down the road, is this issue a design fault regardless of how well its serviced. Are these engines very reliable generally if serviced well. Cheers for the video guys it was a pleasure to watch.

Very good video. Liked it! Also nice that you answered all the questions here! 👍

W212 350CDi after 500000km in first to last "malfunction" 1. front spring 2. oil cooler 3. rear subframe 4. knob for infosystem 5. rear shocks 6. thermostat 7. end links 8. steering column electronic key lock 9. rear subframe bushings .. Rest : standard maintenance!

Great video and a Really interesting watch

modern cars have so many issues designs are poor from seals and wet timing belts to timing chain guides so so poor the modern customer is forced to go to garages and with so many ECU requiring restting once a componet is replaced but the big boys thrive on this

Great job, very interesting

Great Video. Wish you were in Melb Australia to take care of my C32 AMG. Cheers and looking forward to your channel.

I have all the faults you’ve covered on my ml320, I had the oil cooler done a year and a half ago, at over a £1000 , but it would appear that my mechanic stitched me up it is now leaking water and a bit of oil not as much oil as before, so it’s lying in my driveway now doing nothing , being a pensioner I can’t afford to get it done again, I also had a new turbo fitted 4 years ago and the car started the kangaroo bit when I accelerated hard, but again couldn’t get anyone to diagnose the problem at the time, 🤷‍♂️🤷‍♂️🤷‍♂️ but thanks for your video very informative cheers 🙏👍👍👍

I am in Texas USA and on the subject of the OM642, it would be great to hear your comments on the Bluetec Settlement. I know that MB had to settle in the UK and Europe so I'm sure you're familiar with this. Thanks!

I have a 2011 e350 with latest om642 engine 265hp. 250'000km and I changed only the thermostat I think the latest iteration I have is much more robust, with all these problems solved.

My problem that the Mercedes workshop suspects should be the one you show at minute 12:03.

Great video but I hate the double click technique on the torque wrench.

Excellent work, preventive maintenance is the cheap way to maintain a good car, good to see. Isn’t it criminal that Mercedes and others shout about sustainability and how they work for recycling parts, yet don’t make a simple connecting rod for the inlet, throwing the whole manifold away so wasteful!!! Should be an EU law against it, my 2013 C class coupe front callipers have a Mercedes name plate that covers the gap on side of calliper so you don’t see pads, it’s fixed by two dowels, one fell out, Mercedes said I would have to buy a new calliper to get it 😱😡just doesn’t make sense, and so wasteful !!!

Just like I had. (Turbo fault CLK CDi) Regards from Jase, best wishes to you all.

turbo seal is not a 1st problem, pcv valve is a first problem releasing that oil, pcv valve replace interval 30-40k miles

Top work yet again 💪🏻

Fascinating stuff,excellent.

This vid gave me flashbacks of when I did the cooler seals on my R class. It was fortunate that I did it during furlough as it took me a couple of weeks (a lot of that was waiting for parts though). I found the previous owner had done the resistor mod to delete the swirl flap motor. I took the opportunity to reinstate the flaps with a new motor and an aluminium rod kit. The previous owner had also fitted a chineseium actuator to the turbo but I ordered a genuine refurbed one from the states. One little mod I added was I added a shroud made from an old drinks can to cover the swirl flap motor as even though I was replacing the turbo inlet seal, I have only ever known them to leak. The shroud is shaped to guide any oil that drips down behind the flap motor and into the V. I'd be curious to know if you have a definite fix for the red seal leaking?

"we need to repair the servo motor and flaps" Me- we need to trick the car into thinking the motor is still there and rip those shitty flaps out that cause issues 😂

Hi Amazing tutorial, I had exactly the same problem with oil cooler seals, and also the same wear in the inlet manifold swirl flap arm. It was all fixed by a very competent local mechanic but I took it to Austria last year and the Turbo would cut out and would always reset when ignition switched off/on. I still haven't got to the bottom of this problem and wondered if you have any ideas! I was thinking maybe an Actuator or Map sensor but It's really just a guess. I have had the codes cleared and the only code I have now is 2783, which is friction of torque converter lockup clutch is too high. When I got home from Austria the following codes were stored. 2783 friction power of torque converter lock up clutch is too high. 0741 actuation of torque converter lockup clutch is not possible 129700 Dpf filter is defective (although soot/Ash lever zero) 14Ac00 Component B19/11 temp sensor upstream of turbocharger has internal fault 15FD00 Lower limit value of component B28/8 Dpf differential pressure sensor has not been reached. Many thanks in advance, any info would be greatly appreciated.

Good Day, I am from RSA and do find a jerky ride on a random base. I suspect a turbo problem as you explained. No fault code,no white smoke, jerky ride once-off with hot engine and not again until engine is switched off, adblue deactivated and start and idle, smooth. 2014 ML 350 om 642 with 100 000 km. Any advise?

I have the turbo symptoms. But part in the turbo is broken?

I delete the flaps in the manifolds, annoying job. Didn't know there was repair kits available

Questions out the box. Can fabric a oil cooler out sited. And fuel filter out side. ? Love to know possible. For everyone. God bless 👍 Mick Australia 🇦🇺

Hello I have a vibration starting at 50mph and going through to 80mph. Looked at wheels and tyres, changed propshaft, diff and drive shafts, engine mounts, Any ideas, please? Thank you,

How much to have this/these jobs done,I think my cls 320 cdi has these issues (does the kangaroo) and loses power like the turbo isn’t boosting

Hi, I have a CLK 320 CDI and when accelerating it gave me the same jerk. Then driving along a slightly uphill road the car didn't go beyond 100 kilometers per hour, I thought it was the turbo actuator and I had to downshift with paddles on the steering wheel. A few months earlier between February and April I always found oil stains on the ground but the Mercedes workshop told me that it wasn't the oil exchanger but that the oil was coming out of the turbo and seeping from the plastic manifold in front of the turbo which I then changed. While for the tugging the workshop told me that it could be the exhaust manifolds, where it carries a double chamber and from here small pieces come off and hit the turbine wheel, but in any case they say that my turbine is still good, why did you change the turbine? Don't you have problems with the exhaust manifolds? I have to have the exhaust manifolds changed in September.

I Had the kangarooing on my Clk 320cdi a few years ago. I took it to a Merc dealer trained specialist near me in Sheffield who said the gearbox needs a service and other gearbox stuff. I did say i suspected boost issues. A lot of money and a few days later it’s back kangarooing and The specialist wouldn’t recheck the car he claimed it wasn’t his work. Watching the SPR channel, Just shows the ‘’specialist’’ I used had zero clue and wasn’t special at all.

the manifold actuators wear out because the flaps get stuck with carbon residue. Replacing the actuators by metal type is not recommended, as they will not wear, but break the flaps which will be sucked into the engine causing capital damage.

Great video!

Thanks for this awesome video with tons of valuable info, even the parts list! Question: Looks like you got a new turbo? So the stuttering was caused by a faulty turbo or was it the faulty/worn flaps? I do have that stutter every now and then, but only when I floor it. Normal acceleration doesn't produce that issue. Don't want to buy a new turbo if it's probabaly only the flaps. I'd come to you but living in New Zealand it's a bit of a challenge 🙂 (2007 CLS 320 Cdi, 220,000km) And yes, I have an oil cooler leak as well...

you thing if they install a catch can, it will stop all that oil in the intake and going into the turbo?

Oil pump gone on 2016 c220d reddish area 🙏

What happened to the mercs from the 1970 to the eighties that went 300,000 miles or more without problems

Nasty. The really, really big problem is main bearing failure. The old OM646/7/8 straight 4/5/6 (220/270/320) were the last good ones.

Hi Sam! I have a 2011 W212 E350cdi,with the OM642 engine. I had these jobs done(oil and turbo) and the car works amazing. My question is,the car has now 191.000 miles,should i worry about the distribution chain? When the chain gets replaced or it doesn't need to? Also,how often does that oil cooler job gets done? Amazing videos,keep up the good work ,only a few people will do what you do,taking care of the car and the owner's poket👍 👏

Simply remove the flaps entirely and remove EGR as well!

What is the estimated cost for this job?