S500 Motor Mounts

[inetd]

I couldn't get to the oil filter on my 98 S500 until I jacked up the motor. Just put a block of wood on a floor jack under the oil pan and that was that. But that was sort of like fingernails on a blackboard for me.

The motor feels smooth as a baby's butt, and car is wonderfully smooth. So other than the oil filter access, should I replace the mm's?

Can I substitute some non-hydraulic mm's (solids)? That motor is HEAVY. It appears the hydr lifters collapse in short time - especially if neglected by previous "owner" like my car has been. (Didn't change oil in 24k miles).

Also, should the transmission mounts be done at the same time? What about transmission/motor bushings, and/or torque converter?

I've read with interest in other threads that replacing motor mounts could be a laborious proceedure, like re-aligning flywheel sensors, removing a/c compressors, trans dipstick etc. Anyone know what the standard MB shop fee is on this? Like I said for some reason, this one intimidates me. Like I'll let some gorilla out of its cage about half way into it...

 

[guydewdney]

140 240 22 17 is the part number for the motor mounts - 150 bucks each!!!
they are just rubber blocks to my knowledge..

im surprised anything has to be re-aligned, as you just support the engine, lift it a bit, pull out old blocks and stick new ones in.

 

[roadster49]

Engine Mounts DIY

I had the mounts done one year ago and today had the oil changed and same issue, so these things did not last a year.

How hard is it to replace these and the transmission mount. Can it be done with the car on jack stands or does it require a professional?

Thanks

 

[Uberwagon]

My ones lasted 220,000km on a similar M119 5.0 litre car, there is a measurement you can make to see if they are knackered or not.

You fit a slip gauge between 2 points of the mount, 13mm I believe, if it doesn't fit, it's fubar.

I'm sure someone will give you the exact numbers.

Dave!

 

[andy27168]

Hi,
Some Mercedes engine mounts are oil filled, and can leak when knackered.
Not exactly sure on your model but they are around £70 each and i should be replaced as pairs.