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?

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

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.