06 X5 3.0i E53 howling when accelerating at 55mphh+

[andrewwynn]

I just read above 06. Should be x-drive and not compatible with mismatch. I think bmw says 1% maximum difference between axles of 1%.

[Optllizer]

Originally Posted by wpoll

I can't cross reference the number you found on the rear diff. Was it cast into the diff or was it on a sticker?

The correct part number (33107510656) is on a sticker on top of the diff (you''ll need a probe camera or a mirror) and will include the diff ratio (4.10): -

It was casted on the diff next to the right cv. I guess should ignore that. Just curious, should almost all post facelift models with 3.0i have a 4.10? Mine is 2006 production October 2005.

[andrewwynn]

Afaik all 3.0 4.1 but diesel could have had the v dif.

[Optllizer]

Originally Posted by andrewwynn

Afaik all 3.0 4.1 but diesel could have had the v dif.

alright, i will stick with the 4.10 then.

[andrewwynn]

Did you ever have drive train "shudder"? I've seen A couple examples of x-drive with just slightly different sizeb tires made the DSC very mad. Made the car shudder until they replaced the tires.

[Optllizer]

Originally Posted by andrewwynn

Did you ever have drive train "shudder"? I've seen A couple examples of x-drive with just slightly different sizeb tires made the DSC very mad. Made the car shudder until they replaced the tires.

No, car drove fine prior to this. Just the howling at 60 and the clicking which was 100% the front splines.

I did have wheel spin with the 4x4 light flashing in the rear during the winter but its just because the inside of the rear tires are bad cuz of the toe. Was gonna replace them soon.

[Optllizer]

Im gonna get a mirror and find the part number and ratio later today or tomorrow

[Optllizer]

Its been awhile, but heres an update. After a lot of headaches, parts getting stuck at the post office and other things popping up I am finally driving the car again. Replaced the front driveshaft with a extended splines and replaced the rear differential. I did a front diff oil flush and TC fluid flush. Regreased all the cv joints as well. Car drives like a dream and noticeably more smooth. I don't know if the rear diff basically on its last legs had anything to do with that or the new oil in the diffs and TC. Regardless the old x5 is back on the road.

[wpoll]

Great to hear that you sorted it.

[Optllizer]

I was checking the car with pasoft and noticed oil abrasion after a fluid change. I didnt have it pre change so I assume the values need a reset. I dont have the right tools sadly. Whats best way to reset thats not the dealer.