M111 Timing Question (2002 C230K)
Thread Starter
Member
Joined: May 2023
Posts: 120
Likes: 10
From: Arizona State University
2002 C230K SportCoupe
M111 Timing Question (2002 C230K)
So I'm in the process of tearing down my motor to do the head gasket and I reached a roadblock that puzzles me.
I've watched many videos in advance to prepare me for the beast that is timing.
There seem to be 2 methods that I've seen, the one Mercedes says to use and what everyone else does.
Using the method that everyone else does, you move the engine to TDC, then count 13 teeth from the head to the tensioner where it will line up with a pin for the exhaust cam.
For the intake cam, you count 6 teeth from the head to the tensioner where it will again line up with a pin.
After doing these steps, it seems that my exhaust cam is 180 degrees from where it should be compared to all these YouTube videos.
This is what my cams look like:
And these are some of the YouTube videos I see for comparison:
Do any of y'all have some advice for this?
I can't progress with my head gasket job because I'm scared the timing is screwed up.
Thanks in advance.
I've watched many videos in advance to prepare me for the beast that is timing.
There seem to be 2 methods that I've seen, the one Mercedes says to use and what everyone else does.
Using the method that everyone else does, you move the engine to TDC, then count 13 teeth from the head to the tensioner where it will line up with a pin for the exhaust cam.
For the intake cam, you count 6 teeth from the head to the tensioner where it will again line up with a pin.
After doing these steps, it seems that my exhaust cam is 180 degrees from where it should be compared to all these YouTube videos.
This is what my cams look like:
I can't progress with my head gasket job because I'm scared the timing is screwed up.
Thanks in advance.
Thread Starter
Member
Joined: May 2023
Posts: 120
Likes: 10
From: Arizona State University
2002 C230K SportCoupe
Thanks for the help.
I'm just really paranoid about messing anything up since this is my first big job with the engine, my only previous experience is a water pump and general fluid changes.
Newbie
Joined: Apr 2025
Posts: 8
Likes: 0
2001 W203 C200 Kompressor
i faced the same silly mistake, thought my exhaust camshaft was 180 out of phase and was so confused, it hit me after stupidly forgetting that the cams make 0.5 rotations per 1 crank rotation. M111 runs superb now!
