Vibrating idling being caused by an electrical issue?

[X5driver214]

I had vibration on my car when in reverse and drive. It only happened when I was at a stop. I then changed out both engine mounts and it was fixed after that. I had no vibration at all until 6 months later, now my car has a very slight vibration at stops in reverse and drive, and only when the ac is on. Im very confused now. I dont know what to do to fix this. It seems like I have to replace my ac unit now. Very wierd!!! Does anyone else have a similiar problem?

[X5driver214]

The car is a 2000 bmw x5 4.4 non sport w/ 98000miles

[m5james]

X5Happy's bad idle/vibration is going to most likely be the PS pump as the dealership suggested since I was able to hear the whining as he pulled into the garage. We never got the chance to read codes or smoke maching his engine, but if the wild chance the PS replacement doesn't work, then we'll go from there.

[Foose]

I have a '06 3.0i with 12,000miles. I'm not sure if its the same problem as you guys but when idling at a light I can noticeably feel my steering wheel vibrate. It feels like the engine idle is surging back and forth but the rpm needle doesn't move at all. Am I being paranoid or is it a problem?

[02BMWX5]

Hey guys any updates on this issue

I have a 2002 with the same issue only when it's cold

When I put it in reverse it vibrates and the rpms go down and it stalls

Start it back up and its fine

Only does it in reverse

I have replaced the idle control, pCV, oil seperator, crankcase valve

Thanks

[alromcc]

Hi guys! I am a new owner of 2000 X5 4.4i E53 here in Qatar. I got my car last October10. I have been looking in this forum and it helped me alot. Thanks to all members.

I would like to share my experience on my previous rough idling problem during cold starts, and hope that this could help someone with same case

1) I cleaned the throttle using carb cleaner and tissue paper. I replaced the part #2 o-ring seen below

2) I cleaned the MAP with carb cleaner spray.
(blow dried the MAP using hair dryer before placing back)

3) Replace item 11 (see below - as advised by my friend at BMW service center, this part usually causes major leak resulting to rough idling)

4) Placed screw clamp on the small vacum hose attached at bottom side of part 12 above. (hose at end is already loose)