Camshaft/lifter failure on my CLK63 black series/M156
Junior Member
Joined: Sep 2017
Posts: 18
Likes: 1
C200 kompressor 2001
Use the search button, I have a thread with all the parts in it and there are a few other threads like AMG3.2's headbolt adventure that are full of part numbers and pictures. Cam adjuster is the gear on the camshaft that also can set the variable timing and ultimately is driven from the cam chain. The lifters/buckets are the things that sit on top of the valves and the cam shaft lobes press down to open the valves.
Junior Member
Joined: Sep 2017
Posts: 18
Likes: 1
C200 kompressor 2001
lol you're totally right im not doint it myaelf for sure.. but sadly in my country technicians are so stupid they know nothing about amg engines ... the head bolt issue like 1 out of 10 technicians know about it
Senior Member
Joined: Jul 2017
Posts: 486
Likes: 125
2012 C63, GL63, 1989 300CE
Mine blew at 96,000 mi for what it’s worth. I realized it’s not mileage based.
What tends to cause them to fail is when you maintain very high revs (above 4000 consistently, and you get on/off throttle a lot above 5k (like in manual mode). The cam adjusters and cams really do not like that. Mine blew exactly when I was doing that.
‘Best way to avoid failure ironcilaly enough is commit to redline in every gear when WOT, do NOT let off above 5k before hitting redline. If you have to manually shift up a gear before getting off WOT doso but KEEP YOUR FOOT IN IT. That should help avoid the variable cam adjusters getting yanked in opposite directions very rapidly (which is what wears out the adjusters and causes them to fail (I speak form experience
What tends to cause them to fail is when you maintain very high revs (above 4000 consistently, and you get on/off throttle a lot above 5k (like in manual mode). The cam adjusters and cams really do not like that. Mine blew exactly when I was doing that.
‘Best way to avoid failure ironcilaly enough is commit to redline in every gear when WOT, do NOT let off above 5k before hitting redline. If you have to manually shift up a gear before getting off WOT doso but KEEP YOUR FOOT IN IT. That should help avoid the variable cam adjusters getting yanked in opposite directions very rapidly (which is what wears out the adjusters and causes them to fail (I speak form experience
