2000 Mercedes-Benz E320 Q&A

2000 Mercedes-Benz E320 Question: Vibration (driver + passenger side)

when engine temp. reaches above 90 degree i can feel a horrible vibration , once temp. cooled down vibration disappears !! Any advice pls. -
Answer 1
poss water pump or tensioner issues? -
Comment 1
Thank's Greg's Orange,, no issue with water pump/tensioner ,, it is like when the cooling fan speed up to the maximum vibration starts , and immediately after 10-30 seconds again this is disappearing and no more vibration. -