Hi All,

I replaced all three engine mounts on my 1998 C200 manual last week (front right - Lemfoerder, Front left - Rein Automotive, rear - Original part from Merc.)

It has corrected 95% of the vibrations but there is still a slight vibration at idle and when revving the engine. At higher speeds this can also be felt in the steering wheel. Is there a special way of centering the engine that I was supposed to do when replacing the mounts? I just jacked up the engine, lined the holes up, and tightened to the specified torque.

What else can cause this vibration? It's not tyre's as it occurs at idle and I recently had the alignment and balancing done. Oh, and it has 200,000km (+-125k miles) on the clock

Thanks,
Jase

Did you check the transmission mounts?

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1991 300E - 212K and rising fast...

I've replaced the transmission/Rear engine mount

I'm not sure about the W202, but on certain models of the W115, W123, and W126 cars, the transmission mount has a small bolt running through the centre. With these mounts, you need to leave the bolt lose after installing the mount, run the engine at idle speed for a few minutes, and then tighten the bolt. This can aliviate some vibration.

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Don't Chrome them; polish them

Could also be the aftermarket engine mounts...