My girl friend's 99 ML320 just developed a vibration in the front area, that occurs mostly when the car is first put in reverse, but seems to continue at a lower level in Drive as well, again while just sitting still. This happens when the car is first started, not moving yet. The vibration seems to be emanating from the left front quadrant of the engine compartment, but I can see nothing there out of the ordinary. Checked PS fluid; seems at right level.

Anyone have some ideas??

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Ben Harrison Carter
1999 Mercedes ML320 87K
1992 Mercedes 300CE 89K
1995 Corvette 29K -- Sold Dec 09
1989 Mercedes 420SEL 99K -- (Sold 4/08)
1968 Mercedes 230S (106K) (Sold 9/06))
1976 Mercedes 450SEL 130K (Just sold - 06)
1961 Mercedes 220Sb (sold years ago)

My first guess would be the motor mount...

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car

Yes, check the motor mounts first and also check that your harmonic balancer is in one piece!

You guys were correct in regard to the ML vibration problem; girl friend is having the two motor mounts and the tranny mount replaced shortly.
Thanks for the good advice !! Ben Carter (Disguised as the Blue Eagle)

__________________
Ben Harrison Carter
1999 Mercedes ML320 87K
1992 Mercedes 300CE 89K
1995 Corvette 29K -- Sold Dec 09
1989 Mercedes 420SEL 99K -- (Sold 4/08)
1968 Mercedes 230S (106K) (Sold 9/06))
1976 Mercedes 450SEL 130K (Just sold - 06)
1961 Mercedes 220Sb (sold years ago)