Replacing Mercedes-Benz Ponton
Ray Ilich / September 4, 1996
- Are your motor mounts collapsed? If not, perhaps it doesn't need to be done.
- If you're anxious to drive your car, wait until winter to do the motor mounts.
- I'd did them in pairs, front and rear.
- When you lift the engine, you lift either the front or the rear. I don't know of a way to lift the right or the left side of the engine.
- Place a 2x6 between the oil pan and floor jack. For front mounts,
the oil pan IS STRONG ENOUGH to use to lift the engine, but be sure the
mounts are loose, so you're not lifting the whole car. I think the manual
says to lift the transmission for the rear mounts.
- For front mounts, I think the center bolt alone can be loosened
to lift the engine, the two outer bolts hold the mount to the frame. But
it's best to loosen as much as you can before lifting the engine, to minimize
the "hang time."
- For the rear mounts, I think you must loosen the two outer bolts
before you can lift the engine. While the front and rear mounts are the same
part number, their attaching hardware is different. At least it was on my
- The manual shows different part numbers for right and left mounts, but
my source (Miller's Mercedes) only sent one part number. Upon questioning,
Mike said that was the only p/n available. I installed what I got without
- I think I attached the mounts to the engine brackets, and lowered
the engine to the frame. I bolted down one side, then had to "wiggle" the
engine to get the other side to line up.
Update / September 21, 2015
Be sure to use genuine Mercedes-Benz motor mounts!
Photo 1. The aftermarket motor mount on the left had
about 1,500 miles on it.
The mount on the right is a new Mercedes-Benz part.
Photo courtesy: O.L. (Chip) Hughes /
September 21, 2015
to the Ponton Workshop page
Return to the Mercedes Ponton page