[michelissa88]

Hey Everyone, I just got my car back form the indy shop (E92 325i), did a propeller shaft replacement and balancing as I had a strong vibration in my seats and pedals, mechanic confirmed that center bearing is fine. All was good, took the car for a ride and it was driving super smooth for the first 20kms but after that I had the vibration again .It wasn't as strong as before but it returned. I called the guy and he said that maybe the differential needs to be replaced as well. What do you guys think? Do you have any idea ?

[Taskmaster]

Drive shaft guibo.

[michelissa88]

Thanks TheAxiom, Guibo is the U-Joint or something else?

[Taskmaster]

It's where the driveshaft connects to the transmission. They can get small cracks through age and use, and cause vibration and noise.

[michelissa88]

Noted, is it better to replace the whole 1st part of the driveshaft or replacing guibo is enough? are there any wearable items in this part of the driveshaft ?
Appreciate the help!

[Taskmaster]

The bushing, nuts and bolts should be sufficient. This option is cheaper and usually the culprit, even if it 'looks' ok.

[michelissa88]

Thanks a lot! I will check that with my mechanic and post results

[michelissa88]

Hello again, just got my car back after replacing the guibo and unfortunately the vibration is still there! I can feel the vibration in my seat, any other suggestions?
Thanks!

[Nordkeyz73]

Just a guess, but did you check your engine mounts?

[michelissa88]

I replaced the engine mounts 2 months ago, trans mount is fine as well. Don't know where to go from here

[justpete]

Originally Posted by michelissa88

I replaced the engine mounts 2 months ago, trans mount is fine as well. Don't know where to go from here

Is the vibration there only when driving or is it also there sitting still either in neutral or in drive with the brake on or both?

[Nordkeyz73]

Is the vibration in front of you? Bad coil?

[michelissa88]

Yes slight vibration on both I think

[michelissa88]

Originally Posted by Nordkeyz73

Is the vibration in front of you? Bad coil?

It is definitely under the car, I can feel it in the seats, floor and pedals

[justpete]

Originally Posted by michelissa88

I replaced the engine mounts 2 months ago, trans mount is fine as well. Don't know where to go from here

When did the vibration start and did it gradually get worse?

[michelissa88]

Originally Posted by justpete

When did the vibration start and did it gradually get worse?

It started 2 weeks ago, it was really strong. I took it in to check so they replaced the rear part of the driveshaft, all was good for around 20kms then vibration came back but not as strong as before so took it back to my indy shop and they replaced the guibo which didn't really change anything. So now I'm kind of stuck.