w639(om642) vibration at 1200-1300 rpm

[andrzejb]

Hi... first of all hello to everyone in that forum.

I would like to ask you a question regarding v6 diesel engine om642

At parking position (probably also during drive however not recognisable as ease as when car is stoped) means at N or P position when i try to slowly increase rpm at 1250-1300 I feel vibration at my drive wheel as well as seat
Its vanished below and above mentioned RPM position..

any ideal what coul be a reason

thx for any advices

 

[Dieselman]

Probably the engine mounts are worn out.

 

[andrzejb]

I have changed "pillow" under the gear box some weeks ago(new however replacement from bilstein means not MB OEM) .. just to clarify.. another one is under the engine (rounded)correct?

 

[andrzejb]

Engine mounts are ok(no leakage),I am wondering about way of mounting the gearbox pillow , I found that pillow needs to be mounted in some special way, Have you heard smth about that...
Do you have maybe a procedure from WIS/ASRA, step by step how to change automatic gearbox pillow.??

 

[BlackC55]

Engine mounts are ok(no leakage),I am wondering about way of mounting the gearbox pillow , I found that pillow needs to be mounted in some special way, Have you heard smth about that...
Do you have maybe a procedure from WIS/ASRA, step by step how to change automatic gearbox pillow.??

The mounts don't have to leak to be worn out.