Hilariously good execution of this job. As a Mercedes tech I approve this

I don’t give any videos thumbs down. I’m not a Mercedes tech but I have a 2010 C300 and the M272 Engine. I do my own work and know the M272 well. Your engine like mine, is plagued with timing issues after 100k miles. I know you did other things but it looks like all you needed to do was replace the oil control valve on that one cam. All you need to do is remove the magnet, then place your socket on the oil control valve head, AND SIMULTANEOUSLY take the oil cover on the back of the camshaft and counterhold it with another ratchet (I believe the back is a 60 mm) and then rotate counter clockwise. No need to take off the valve cover and all that jazz. I did the above on my left intake cam, took the oil control valve out, cleaned it with carb cleaner, then put it back in and my timing issues completely went away. Sometimes they just need a cleaning not even replacement.

And thank you for this vital info on this video regardless of way your doing it and clever ingenuity definitely appreciate you bro!!!

Gettin er done!!! I love it!! Thanks for taking the time to document it!

Hi Mr GOAT thank you for your videos and information. I have installes updated tensioners and check valves in my 2012 mercedes E300 M276 engine. I checked all my camshaft acutators they were fine but my tensioners were no good. I now know how to set the engine timing as well. The rattling is now gone and car is running beautiful thank you.

ordered a timing chain kit... saw your video... recreated it on the exhaust side... returned the chain kit. i performed the bulletin work 2 years ago, didn't solve the startup rattle. many thanks for documenting your diagnostic process.

Thanks man, for work well done. However, I need full timing video

I love your attitude. You gave the engine the level of respect it deserved (not much) with the non MB approach. Long time MB owner and IMO their new engines are turbo POS so who gives if you use a vise grip on the camshaft.

Nice work. No fancy tools here..

I have a 2017 c300 with 57k miles and I just recently had the rattling issue . About 2 weeks ago the car started stalling (no longer starting ) and the dealership has quoted me $7282 to fix . No other shop in the area I willing to work on the car because the miles are so low . If you’re having this problem, try not to ignore it

The most important thing is that the engine is fixed and working...

Hi, well done!!! Like you said it was not the way MB technicians do but the most important thing is the result! QUESTION: WHAT ARE THE TORQUE SPECS FOR TENSIONER BOLTS. THANKS AHEAD)))

Hi everyone, I had a same issue with my C400 (M276- 3000cc V6 Twin turbo) I replaced my check valve and tensioner earlier but that couldn't fix a problem. I had some rattling early morning and weird rattling when warm engine was sitting for 20-30 minutes. I took a car to another local general mechanic and he quickly figured out my intake sprocket is faulty, I ordered OE quality from eBay for something about $125 and he replaced it for me, not any issue at all🙂👍 You don't need to open valve cover, this part is like a plug and play and entire job is taking about 2 hours

Good job

Nice job buddy

Do you have an Ugga Dugga chart for the fasteners in this video? Not sure how many ugga duggas I need for bolt #6

Hello, Thanks for the video, it goes a long way to get the job done, Great Job, I have one questions, i am about to instal check valves on both cylinder heads, please can i know which one goes for bank 1 and bank 2, because the look diffrent. Thanks

Way to go!

hi, was this vehicle having a longer than normal crank to start previous to the repair?

Perfect

Does it cause damage to the engine please I need answers because my car makes that rattling sound for about 3sec on a cold start

Hi I have a 2014 CLS550 wondering how do I remove existing check valve I was able to pull the threaded piece out seems like there's a steel shim that presses into and then the check valve behind it how would you go about removing the old valves your help would be greatly appreciated thanks

Thanks for sharing. Mechanic verses MB Tech. MB tech.: hours @ Xentry diagnostic🤔...Mechanic: hours @ repairing a car from visually looking at the signs of a malfunction.😃 previous owner of my m276 C300 ignored the oil leaks around the cam gaskets ,ignored the low oil dip stick levels. Just added oil and kept driving. Now, tensioner is failing, ppl check for Engine leaks and repair in a timely manner. Owner man. Says check @ 40K. buy a Ford when you want low repair cost instead of MB.

HI Goat Garage, I have an M274 engine and my timing is off. I get code P0017. I do have rattle noise that mostly comes at start up. My valves are fine, doesn't spit out oil. Actuators seems to be fine too. it is just timing alignment. What indicates that my timing is dead one aligned?

Based on three other videos i've watched on roughly the same symptoms and fault, there's a failing lock pin that is supposed to hold the adjuster mechanism in-place during cold start. I think my ML 350 may be experiencing the same.

My issue: BOTH Intake and Exhaust Oil Valve Actuators are both having issues on Bank 2. It’s a 2016 E350. Sound familiar? Help/Advise please.

Bill, thank you very much for this video. How long did it take you to perform this fix roughly? Wondering what kind of labour time I’ll be into at the mechanic. .

How did you remove the injectors with fuel rail? it seems they are seized when i try to get them off.

I have a ‘12 C350 that rattles from driver side timing cover and also the timing cover is showing a leak. Could this leak also be caused by tensioner or is that most likely a bad actuator ?

Mercedes dealer did this, still rattles after sitting five days. only use car once a week. Tried a thicker oil, helped slightly. No rattle if driven daily.

If you use vice grips? Clean lobe or shaft with Brake clean on a rag wipe clean and dry. Put some brass shim stock around where your grip jaws will be. It will help protect lobe or shaft where your jaws will bite into.

where is this guy located? LOve it.

Hi. Have got this code( P0454A00) the outlet camshaft (cylinder bank1) position differs from the specified value in direction ‘Advanced’ during cold start accompanied by P001464 and p002164 on Benz GLK 350 2014. So the clack sound while turning the engine proves that the cam phaser is bad

I am hoping that Bill, or anyone else that has experience with this can help me. I have a 2012 E350 Coupe. 276.957 Engine, base model. I have the cold startup rattle/rough idle, then it disappears after a second or two. Engine feels strong, new spark plugs, coils, camshaft sensors, crankshaft sensor, no leaks, and the gas mileage is great. I am also only getting the P0300, P0301, and P0304, P0346 codes. I am going to start with making sure the check vavles and new tensioners are in, but does it sound like I may have bigger issues than the valves and tensioners?

Love your SO CALLED Mercedes certified tools LOL, just heads up on my issue, i was 100% sure that i have bad timing gear just like yours, span the engine by hand and no jumping like on yours, my problem was bad tensioner

Your amazing dude my car has the same problem going to cost me almost 10 grand to fix

Just wondering ,see how close the engine coolant valves are to the cams. Would you say those engine coolant valves get old,brittle breaking down the effectiveness of engine pressure. With high internal engine pressure, oil expansion occurs,leaks and slipping chain in engine result. Sensors get oil drenched and become useless. As they say, it becomes a mess.😖

Good job! This video is giving me courage to do mine as well. Same issue. Tensioners and check valves didn't fix the rattle. Where did you get the camshaft adjuster?

Militec-1 unsticks these actuators and unsticks piston rings. Highly highly recommend 16ozs with every synthetic oil change

Thank you for this video sir. I have a Mercedes Benz e350 2013 and I have rattling noise mainly cold start but some time it rattles when the engine is warm. I have 200k miles on it and I’m not sure to just replace the tensioners or also the chain? Or of I just replace the tensioners do I have to align the timing ? Thanks

Hi. Nice video! I’m getting a P0016 code on my m278 engine (2013 gl450). No rattle on startup. Hard start sometimes. Will do the engine turn while looking at the intake adjustor to see if it jumps. My question is that will a bad adjustor always make rattle at cold start? Is it possible the cam sensor, cam solenoid or the cam pulse ring is bad? Any thoughts? Thanks a lot.

What is the check valve for on the tensioner place ??? 🤔🤔🤔

What will happen if you put intake adjuster on exhaust and exhaust on inrake? If you switch them up?å

Oh my god, to change, camshaft did YOU open the engine cover? I change it in an hour, you need two sacet and that's it, and that someone would help you hold the second camshaft.

What mileage you have run?

I have a 05/13 prod date m276 e350. The engine number is after the dates where the tensioner and check valve needed to be serviced. I recently been getting a rough warm engine rattle mixed with a “playing card in bicycle spoke” effect after letting it sit for 10-15 mins after a drive to work. During a full cold start, I don’t experience these things. It basically only happens after the engine been warmed up and it’s cooling down. I have 0 codes when I scanned so I’m confused as to what it might be. I was told that this is an early sign of cam adjuster if I have no codes. Should I be ruling out the tensioner and check valves and look into replacing adjuster?

Hi Mr GOAT was the crank shaft pulley set at 40 degrees top dead centre after the overlap?

I really appreciate u and ur video . Just wondering during removal of cam adjuster no need to lock up the cam to prevent it from spinning? Thanks again

Can this clacking sound from the cam adjuster cause the engine from spinning freely when turning manually. This one does so bad that when ever it’s started it acts like engine wants to lock up. Now after replacement of the oil breather valve which would require you take out high pressure pump, I decided to turn the engine over manually to get the clacking noise from the cam adjuster and it was a terrible sound and it did turn. I tried to crank the vehicle after the job was done(replacement of pcv) the sound came up like it usually did cos of the bad cam adjuster but I had to put it off. Now on turning over the engine manually it turns to a stage and get stuck somewhere. Could this be a case of the cam phaser going out completely. I kindly await your response to this. Thanks

I have an 06 ML 350, always getting a loud rattle for about three- four seconds, then it goes away and no noise. Mostly cold starts, but even after one hour or two Can I just leave it? Is it something with oil pressured Tensioner’s? Drivable with the noise on start up?

Hello GOAT Garage. - great practical video. Thank you. Couple of questions: (1) what year M276 was? I'm guessing early in te engine numbers, since it needed the check-valves; (2) do you think Timing Chain cover leak and rattle indicates likelihood of the VVT unit failure? (3) Could you hear the magnetic clack when the valve cover(s) were on? (4) Is that clack characteristic of the VVT module failing? Hopefully this is not annoying and the questions knot two stoopid. I am justing asking a practical expert, before I buy a 2014 M276 (post-TSB engine) GLK. Still has those VVT units! Thank you, Best, KenH

Where are you located?

Do you recall what the engine codes were? Camshaft correlation codes?

M276.821 throwin p001685 and rattle on cold start up got everything off to inspect and on first rotation by hand skipped and center stopped a couple of times but now acting normal as im turning by hand...just really early into the failure ya think?

Hi....A quick question. Does the tensioner check valve come out of the head when you remove the tensioner or does it have to be pulled out? I'm going to be doing the same job. Thanks!

I got the same problem with my GLK 350 2013. Do you know how much it cost to repair? Nice video!!

Concentration is on one side, how about the other side the left?

The same with 2015 E400?

i have a problem on my e63 model 2014 and also it says there's a problem with camshaft exhaust but i have checked it its fine so do you have any social media to message u ?

How much that repair would cost?

Hi I take it that to change only the tensioners and fitt check valves, you don't have to remove the cam covers. Good video although its a shame you did'nt show the timing marks on bank 2 as I want to fit the check valves but cant find any info on the timing marks.

I'm laughing, great video. How much for this job?

Nice video! Is it already a problem if it rattles for only half a second at startup? My M276 has only done 50.000 miles.

Is that not bank 2 thought bank 1 is drivers side ?

Hi, let me know if you have information about camshaft timing marks or a diagram?

What happens when the dealer replaces the adjuster and tensioner but nothing changes? I noticed unplugging the oil diverter solenoid in the oil pump reduces the chance of rattle. Oil analysis shows normal wear in engine. Maybe I should just leave the solenoid unplugged and let engine run at normal oil pressure and forgo the low oil pressure better fuel economy.

Did you have to drain the oil and coolant prior to removing the cam adjuster cover and rocker covers?

Holy shit. They took money for that job.

I know when you take the right( passenger) tensioner off you have to be 40 degrees past TDC but what about the left ( driver) ? I can't find anything on it can you please help

From your experience, at which mileage do you see problems with timing chain in M276? (Of course with regular oil changes)

Its same like on m273, this fckin rattle is my problem too

😂😂😂 nice guy

Hi, witch is the sensor A of bank 2 please? I have the P0346 error. Thanks !

Glad my Tesla purchase solved these issues. Phew!

Bro you got her done with no BS from the “Mbz tech” and you didn’t pay an arm and a leg for the actual repair! My car is doing the same thing after it was supposedly repaired by the mbz dealer !

Are you in Canada?

Milwaukee High Torque?? 😆💀

I’m I certified Mercedes Benz tech ! First of all you fixed the car ! Which is good and I happy for that. Second next time that’s is a 40 min job and i quote like 15h to make my money . I get paid for what I know not for I how I do it . Yes 40 min , which means you don’t take the injectors, coils, fuel lines , pump , nothing at all not even the intake manifold .Why because I know my tricks, third you we’re lucky this time you get it on timing and no skip any tooth. Having said that I want to congratulate you for doing ! You did a good job but no good work .

I don't understand why not counter holding the camshaft with a wrench at the opposite end and torque it properly to 130Nm as per specs? You already have the valve cover out, might as well do it right. It may work fine now but what about in 100,000 km? That's the problem with DIYs, they think that if it works fine it's ok but when you give 2 years warranty on a job you might approach things differently. Same goes with using Chinese aftermarket adjusters for a couple of hundred dollars. If it fails in a year you'll have to do it again but as a repair shop I'll have to do it again for free, so no Chinese aftermarket crap is ever installed by any reputable shop.

You should let us hear the noise first. I have noise form my 2012 ML350 took it to mercedes in April still having the same problems

Sorry but I think timing is not right. But is a good reference 👌

still sound like it's ticking

Came to see timing marks, oh well

It doesn't look like you have to pull the valve covers. Or the intake for that matter.

Umm? I thought they are supposed to "jump" or go back to idle cause there is no oil pressure when then engine isn't running. You are turning it with no oil being pressurized in the actuator.

Just rest codes and everything will be a-Ok.

That was painful to watch

Kumis kucing

This sad Mercedes Benz and BMW ought to be shame of themselves they have these $100k dollars cars basically after about 50k Miles their cars are Crap

You didn't show some critical moments!

what the hell is an ugga dugga?

question, did you turn the engine 360 to change the drivers side tensioner? working on one now and left side doesn't want to come out with marks all line up at 40 atdc