vibration when idiling ml 320
 

my 1999 ml 320 has a periodic vibration when idiling and after a cold start.
Otherwise it runs very well. 176,000 miles, mostly freeway, rebuilt trans @ 140,000 and new plugs and wires @ 160,000 mi Any suggestion or ideas would be appreciated.

At the mileage it wouldn't surprise me if the engine mounts have been replaced twice by now... have they?

Engine Mounts
 

Thanks for the reply, I 've been told by a few other people to get these mounts changed. I've scheduled to get them done next week.