BMW x5 Rear Axle Drive Failure

Asked by Oct 26, 2014 at 10:27 PM about the 2007 BMW X5 3.0si AWD

Question type: Maintenance & Repair

Hi , i am wondering if you can advise me. I have a e70 x5 3.0 Diesel. I upgraded rims
exactly 1 year ago to 20" staggered Vossen rims . Yesterday the Diff broke and i am
in the process of trying to source a new diff .

My mechanic is suggesting that the cause of the diff (rear axle drive)  failure is the
wider Rims and tyres that i had put on. I am not sure since i see the sport package
came with those same sized rims and tyress i used.

Do you agree that the wider rims and tyres caused the diff (rear axle drive)  to fail ?  I
am worried as i dont want the same to happen again.

I will admit that since i upgraded , i normally get the traction light blinking at time when
the road is slightly uneven when accelerating.

If you can advise me i will be very thakful.

Thanks
Khemy

4 Answers

28,145

I don't even want to know what the cost to repair this would be on a BMW. Did your mechanic give you a quote on repairs? Guessing you can afford this, since you saying that you don't want this to happen AGAIN. Best advice I can give you is to stick to OEM specs to avoid issues like this in the future. Wider rims and tires caused this mess.

1 people found this helpful.

What confuses me is the sport package comes with the staggered rims and tyres .

285,705

I read that this is a common problem on the 06'-07' models only. BMW redesigned the rear dif in 08' to address the design flaw. You can't rebuild the rear differential as BMW does not sell the parts separately. Sorry

1 people found this helpful.

I am purchasing a new diff. Will the 08 diff work ? Do you think the problem will reoccur if I leave the existing rims and tires on if I use the 08 diff ?

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