Vibration While Accelerating

Bimmer Ese · #1 02-19-2009, 10:48 PM

Hey guys,

I'm starting to notice a slight vibration while accelerating (when the car is moving). You can definitely feel it on the steering wheel, pedals and see the side view mirror shake. Now, when I have the X in neutral (while the vehicle is in motion...highway speeds)and rev the X, you do not feel it. Only while the vehicle is in motion and in gear. I checked underneath, and everything seems ok (guibo, bushings, etc). I did find a torn right outer CV boot, and have bought a new half shaft, but I do not think that is the problem. That, and I do not suspect the tires to be out of balance, since the vibration only occurs while accelerating.

Within the past six months, I've replaced the transfer case (thanks BMW

) drivers side hald shaft, lower ball joints, sway bar end links and the wishbones. Again, all the other bushings seem ok.

Any help would be greatly appreciated. Oh yeah, the X has a manual gearbox.

Daniel

Sponsored Links

FSETH · #2 02-19-2009, 11:23 PM

Could it be the drive shaft or an axle issue?

Bimmer Ese · #3 02-19-2009, 11:33 PM

Quote:

Originally Posted by FSETH

Could it be the drive shaft or an axle issue?

I checked the guibo, and didn't see any cracks. I really didn't inspect the front axle either. What would I look out for? Now, I am going to replace the pass half shaft this weekend, since the boot is torn, but I do not hear any clicking or any noises when I turn the steering wheel.

FSETH · #4 02-19-2009, 11:44 PM

Quote:

Originally Posted by Bimmer Ese

I checked the guibo, and didn't see any cracks. I really didn't inspect the front axle either. What would I look out for? Now, I am going to replace the pass half shaft this weekend, since the boot is torn, but I do not hear any clicking or any noises when I turn the steering wheel.

I am not sure to be honest with you. the flex-disk/guibo would probably be easy to tell, but I think you could have a u-joint problem or an axle issue. I don't really know what to tell you to look for. I was just thinking that is has to be a rotating part and it you are confident that it is not the wheels, there is only so much else that it can be. I would hope that it isn't an issue with the diff or transfer case.

Have any wheel weights fallen off? Are your lugs tight? Are you positive it is not a wheel or tire issue?

I had an issue on my 325i once where the cat. converter moved slightly over and began rubbing on the driveshaft. That created a vibration, but I am not sure if that could happen on the X.

Bimmer Ese · #5 03-09-2009, 05:55 PM

REplaced the pass side half shaft on Sat (torn outer boot) and had the tires rebalanced. Unfortunately, the vibration is still there. Any other ideas? I did notice the half shafts (both of them...replaced drivers side last Nov) fit easily into the wheel hub (no necessary hammering / pressing into hub). I bought both shafts from autohausaz.com. I believe the manufacturer is Empi???

Any other ideas? Any help would be greatly appreciated.

Daniel

Bimmer Ese · #6 03-11-2009, 11:22 PM

I think I may have found my problem. I inspected the front and rear flex disc (aka guibo), and didn't find any cracks. I then inspected the transfer case rubber mount (item #3 in the diagram below) and it appears pretty chewed up. My guess is, when BMW replaced the transfer case several months ago, they reused the old mount instead of installing a new one.

My question is, would a worn transfer case mount cause the vibration described in the posts above?

augustbmw · #7 06-19-2019, 04:13 PM

Hi, anybody solve this problem with x5 e53 vibration under acceleration?

I have same problem , feel vibration on the steering wheel, pedals and body.

Sponsored Links