I have been a Mercedes tech for 25+ years, and I remember the old M103 cam issues, and also the M1117 occasionally having cam and follower failures. BUT--these engines you are talking about are JUNK! It all started with the M272 balance shaft problems! The old M112 and M113 were awesome! Nice and simple, and reliable. Back in February of '19 I had to put a used engine in a 2013 E550 convertible and it took two tries to get a good used engine! Man, I can't believe Mercedes has these issues! But, here we are....
efaristo: you're a genius! Great advice about changing the oil more often to prevent enabling the excellent lubrication problem designed by Benz (I think Benz fluids are cheap low grade, short lived compared to Japanese standards) There is a OEM kit with the 3x check-valves and the stupid "aluminum screws" Benz had removed to ensure chain rattle caused by low oil pressure into tensioners at startup. Benz goes through great extends to create excellent problems. 👍🏻
Hi, There is a quick fix when you hear the noise. Order A2780504000 that is a valve that fits in the oil channel behind the camshaft tensioner on each side. You need a press tool to push the valve in position. After the valve is in place the oil stays in the camshaft adjuster and voila no rattle! Price for the valve 15€ the tool is 90€! Good investment works on AMG M157/M276/M278. I enjoy your work Tasos! Ciao from Stockholm
This may fix the issue, but not always. I have this noise on a M276, replaced the tensioners and installed the check valves -> same noise for two seconds on cold start. It looks like the camshaft adjusters now as Tasos describes.
@@maxg4958 Hi I have the same noise on my e 350 with 50k miles on it and was thinking of doing it myself. was it easy to put that tensioner and check valves?
Depends on your skill set :) (and whether you've got the tools; and do not drop parts in the engine.) It was easy for me; ordered the parts ahead of the work, and did it. The rattling is now half a second longer, due to the check valves (pressure has to build to go past these to load the tensioners). Hence, I will remove the check valves next time I am doing some work on the engine. (MB also advises that if the check valves do not improve the situation that these are to be removed.) While I said the camshaft adjusters could be the culprit, I am not convinced. There is another (3rd) tensioner, which could be a problem. Time will tell.
@@maxg4958 Thanks you for a quick response. As a former tech at lexus for 20 years. I miss the good old days of the timing belt. Lol. This chain noise drives me nuts. This is my 1st Mercedes with only 50k. And ive been looking on the internet and youtube for this noise. I was thinking of bringing it to the dealer and have them look. There is a bulletin that i found for this noise. But i hope they will warranty it. Or i do it myself.
@@maxg4958 Thank you for the info. Do you have instructions for installing the check valves. Is it a simple remove and install or do you have to adjust the cams to remove the tensioners? One video showed instructions to adjust 40 degrees out of TDC before removing the tensioners
Hi Tasos Thanks so much for spending the time to video 👍❤️ Ml 2012 ( 27-12-2012 build ) ML63 AMG 5.5 TT Chain noise for 2 seconds in the morning Now engine light on and off with POO1885 I believe it’s what you have described As if I clear codes in the day when car is hot they don’t come back till the morning - oil drained out over night - carry out what you videoed?? Anything to check before on the code reader ? Live data ? Intake cylinder bank 2 implausible error
Good job. Love your videos. I am looking to buy mercedes 2007 cls 63amg ( m156 engine) or a 2012 mercedes e63 amg (m157 engine) wich will be more reliable on the long run?? I what to keep this car for long time, love if you can help me out. Thank you so much
I think Mercedes Benz are making new complex money pit engines. I am suffering from the camshaft adjusters they are expensive and once they wear and got damaged it is not good for your life finance because of their exaggerated costs. MB not giving life time warranty for their engines, because simply it will wear and broke in the end. So read more about MB cars engines before you purchase them either new or used.
Tasos very very good work. Youre a genius brother. I have 2013 GL550 m278 x166. I hear a knocking in the motor. I'm told this is a common issue. What is the real problem and how do i fix it? I dont want to go through a new motor, etc... do you have an email?
I replaced cam shaft adjuster on both cylinder but left side misfires now and I only have 90psi on left and 190 on right side so I redid left side again re timed everything on left side primed system check compression while primin was good 190psi on left and right, started car ran good for 10seconds then misfires again rechecked compression and 90psi agian in left side and ideas of what it could be, all 4 adjusters are new
Hello Tasos, I am currently working on a G Wagen with a M157 engine and I'm getting a intermittent long start. The EML comes on and the bank 2 exhaust camshaft goes to 25° In the red and Bank 1 intake camshaft reads on the limit of 53° sometimes going out. I have replaced both chain tensioners and corrected the basic position of the camshafts according to WIS. The lazer markings on the back of the pick ups on the cam shafts line up with the the head but I'm still having the same issue. Please can you help with this? Thank you
Hi did you fix this ? I’ve m157 ml 2012 Noisey on start up for few seconds Now engine light on and off I think it’s cam adjuster loosing oil over night as through the day of I clear codes it doesn’t return till morning - which means it’s drained over night Stretched chains don’t fix themselves
beyond my skill level. but awesome again,....im catching up on all the m157 vids did u train with amg factory??? do u have opinions on which Tunes are safest for m157, weustec, eurocharged etc etc, my 2012 is stock because i am paranoid of my car getting ruined thanks again
Hola amigo tengo problemas con este código P001985 me podrías ayudar con ello h3 vuelto a desarmar la tapa válvulas para verificar el tiempo y al parecer se encuentra perfecto? Que podría hacer en este caso
Tasos Moschatos are you sure? I have removed the cylinder head cover for an m276.9 and the timing for the right back won't set, as because when I set the timing, install the cylinder head cover, take it at 53°aft ignition TDC, my intake cam as seen from the camshaft hall sensor window is ahead by 1.25mm and the cam rotates as and when the timing chain and tensioner are in position and the crank is locked
@@quadrigacars2776 no need to change both. there is laser etched line behind the camshaft pulse plate make sure it is matching with the dot on the camshaft bcuz they apparently move for some reason thats why it throws timing code
Hi Tasos, Thank you for the excelent explanation :) I have CLS63 with 180000km and I have problems with timing, faults are p001664, p001885, p001785 and p001964... What is your oppinion from experience, are the adjusters or the timing chain?
Tasos Moschatos thanks tasos I will look forward to video. I have 12 cls63 around same miles only fault code is p001885 only symptom is car cranks long to start. Shop told me to change camshaft magnets and CPS sensor. Did this but did not fix it. Now they think it’s stretched timing chain or bad camshaft adjuster
@@michaelrackson9784 it seems this is caused by bad engine lubrication. By the time you replace ALL the timing components, look closely for damages on the rear camshaft lobes 😂 At that point with 4 new camshafts... may as well do a leak test and a valve job 👍🏻
Hello. First of all, thank you very much for your videos. I have a Mercedes ML350 2012 M276 engine. The engine it takes to turn on. The code is P001685. If I reset the code, starts excellent. When I turn of the engine, and start again, the code and the problem persist. I replace the chain tensioners and the camshaft exhauster. Can you guide me about this problem? Thank you.
