Engine Mounts
 

The W210 uses 4 silicone filled engine mounts (2 in the front and 2 in the back). How often (after how many miles) should they be replaced?
Pat

Do you have a V6 or V8?

Generally I thnk the V8 will need them (depending on how heavy your right foot is) around 80-120k, or if at a standstill and at idle the car is shaking. I have read here that if they have failed and you leave them in for some time, they can be very stubborn and time consumming = expensive to replace.

Not sure with the V6?

Roas, Thank you for the feedback. I do have a V6. I will assume the same intervals - around 90k.