On the average W116 300SD nine out of ten times we find these mounts rotten, soft, or collapsed. It is often just due to the age of the rubber. Have you noticed your engine is shaking more at idle? Maybe you are noticing new vibrations that were not there before. You may have also noticed the engine makes some clunking noise when you shut it off. When was the last time your rubber motor mounts were changed? Diesel engines are especially hard on rubber mounts because of the excessive vibrations associated with the type of engine. WARNING: If oil or diesel fuel gets on them they can deteriorate very rapidly. If they have not been changed in the last 8 years then they most likely should be.
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Even if they appear to look ok they may have hardened or softened over the years and are not giving the performance they should. This set includes both front-engine Motor mounts (2) and one rear transmission rubber mount.
Look below to check out our special tool for help in removing and replacing these motor mounts. A must-have to save your sanity!
You will need a 10mm hex socket to remove the mount bolts from underneath the car. 116 Chassis diesel H.D. Hex Socket for Motor Mount Removal is also available below.
Check out this video!