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Old 03-20-2002, 11:07 PM
Registered User
Join Date: Feb 2002
Location: Canton, MI
Posts: 54
E320 Motor and Trans Mount : Replace or Not?

Thanks again to all for you help in the past. I just replaced the OPV Relay with help from you all and my 1994 E320 is running great again, well almost.........

When the engine is at operating temp there is a little vibration ( high frequency) in drive when vehicle is stopped. In neutral it is almost not noticeable. When the trans is in drive the gear shift appears to be between the "D" and "N" on the console. Also, when I apply the brakes while driving the shifter then goes completely into the "D" spot ( moves to the left), just where it should.

Question1: My first thought was the trans mount was bad. I took a pry bar and tried to move the trans up off the mount very gentle like. It moved up about 5mm, but the mount seems to be OK. The mount is very flexible. Should it be flexible? It seems the mount is connected by two rubber straps molded to the top and bottom of the mount.

Question2: I meassured the right engine mount from the flange to the sub frame as I have read. I used digital calipers. I measured the mount clearance in two places. The front of the mount measured 14mm to the sub frame and on the right hand side of the mount away from the engine measured 12mm.

Should I replace the engine and trans mount?

I read 13mm is the minimum. True for a 1994 E320? My CD does not state.

The engine starts and runs hesitation.

Thanks again,
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Old 03-20-2002, 11:26 PM
Ashman's Avatar
Service Advisor
Join Date: Sep 2000
Location: Sherman Oaks, CA
Posts: 4,748
for the loose shifter, start with shifter bushings... My car did the same thing and it was shifter bushings...

The rocking shifter as I call it will move when accellerating or braking, sometimes only during braking can it be noticed...

As far as the mounts, I say do the shifter bushings, then look into mounts. I think I have read that the mounts are liquid filled but I am not sure if that is correct or not.

'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.
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Old 03-21-2002, 01:43 AM
Posts: n/a
Yes, the engine mounts are liquid filled. The passenger side goes first since it is subjected to the exhaust heat. I just replaced it on my 300E Saturday and I thought someone had slipped me a new car. It made all the difference in the world. It was very easy to replace.

The transmission mount is a simple rubber mount that you can easily inspect. If the rubber is still intact it is probably okay.

Good luck,
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Old 04-09-2002, 04:30 PM
Registered User
Join Date: Feb 2002
Location: Canton, MI
Posts: 54
Shifter Bushings E320

Thanks Ashman and Larry, I purchased a pair of AT Shifter Bushings Part Number J4070-72864 from FastLane.

Purchased: The bushings I bought are clear, about 6mm long and about the width of a pencil.

On Vehicle: The shift rod/linkage on my car has black rubber bushings about the diameter of a nickel at both ends of the rod.

Did I get the wrong parts? or are these the right parts and I just need to find out where to install them?

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