Vibration problem. (Engine mount issue solved)

[X53Jay4.8is]

Originally Posted by Quicksilver

I hate to do it but I may have to take this issue to the dealer unless someone has experienced this issue. This is not hard to explain but may be hard to diagnosis. Note the differences between the morning first start and after the X warms up.

1 In the morning, Idle speed with compressor off, vehicle in drive, sitting still not driving, steering wheel vibrates like a message chair. Step on accelerator vibration goes away but not completely.

2 In the morning, Idle speed with compressor on, vehicle in drive, sitting still not driving, vibration much less but still evident. Step on accelerator vibration goes away

3 After the X warms up Idle speed with compressor off, Sitting still with vehicle in drive, steering vibration less but very evident. Step on accelerator vibration goes away

4 After the X warms up Idle speed with compressor on Sitting still with vehicle in drive, vibration hardly evident.

Any thoughts.

I changed my engine mounts because of a similar vibration issue that you describe. I have to tell you I was shocked in the difference in noise isolation quality when I changed my engine mounts. I have 106K on my 4.6is X5. If you have original mounts I would not hesitate in getting this changed. These X's are sensitive to noise vibration.

Oh and I understand why you may be a little hesitant in wanting to change the engine mounts. Its not an easy job and a little more labor involved than the standard engine mount change.