How I replaced motor engine mounts W124 '95 E320
Just wanted to pass on my experience - as it might help you. I bought a pair of engine mounts for my '95 E320, as when the car idled in gear, there was a noticeble vibration inside the passenger's compartment. I removed the plastic "belly" pan from under the car, and jacked it up under the front crossmember. The placed two floor jacks on either side of the hydraulic jack, and lowered the jack. Then, undid the fan shroud ring and pushed it toward the engine. This will allow you to jack up the engine and not push the fan into the shroud.
From underneath the car, I loosened the two engine mount bolts (17mm) and removed them. Up top, the challenge began. I found that you get much more room to work when you lift the engine up a bit. I used a wide, 2" x 6" piece of wood under the oil pan, and carefully lifted the engine.
OK - the RH side mount (passenger side) was a pain. Either get a stubby 17mm wrench or you're going to want to unbolt the mount assembly from the side of the block (which I did - just four 13mm bolts). There is just not enough room to get a socket or even a wrench on the single bolt in the top of the engine mount (exhaust manifold is just above this area). I then was able to pull the whole assembly and remove the bolt (top of motor mount to motor mount housing) on my bench. Then put the new mount in place on my bench, and torqued down the top bolt. Going back was fine, just had to use a prybar to encourage the motor mount to align with the hole in the bottom of the car's chassis (facing the ground). Beware that your old mount will be very compressed, and you'll have to get the engine as high as you can to get the new mounts in place.
Believe it or not, the LH side mount was much easier. With a 3/8" ratchet and short 17mm socket, I was able to maneuver my left arm behind the throttle linkage (under the intake plenum) and put it directly on the top bolt of the engine mount. It came right out. Assembly on this side - I threaded in the top bolt first - slightly and the bottom bolt next, then dropped the engine. Then made sure both sides were tight. Put the shroud back on and drop the car to the ground.
Idling is great. Startups are quieter. Car drives great. I highly recommend the change if your mounts are original. I think it took me two hours (with me going inside to read my four year old a book before bedtime). Hope this helps - best regards, 71Rcode
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