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  #1  
Old 06-06-2019, 06:04 PM
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Join Date: Mar 2013
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hquick is on a distinguished road
Rear diff went kaboom!

Hey everyone...been a while.
As my X5 is my daily driver...I pretty much never do anything worth mentioning.
A couple of weeks ago...the rear diff went BOOM..completely out of the blue.
Has anyone else had this happen?
How hard is it to change? (Iíd say Iím reasonably competent...mechanically).

Thanks for any/all advice
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  #2  
Old 06-06-2019, 06:20 PM
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Purplefade is on a distinguished road
Mine did... went through a dreaded undiagnosable shimmy for months before mine went boom.

One thing to be careful of, there are two lengths of drive shafts, I donít recall exactly but one is about 20 mm longer than the other and depending on which one you have, it will affect which diff you buy.

There are also diffs with high speed synchronizers and diffs without. I made life easy, I called my dealer with my vin and got all of that before I ordered my diff.

Then I found a diff on eBay, emailed the seller, got the vin and numbers off the diff and called my dealer back

When I found a match, I snagged it

While you have the new used diff in hand, itís the perfect time to pop in new seals and change the fluid too.

I didnít actually put mine in, but if you can get the rear axles out, itís pretty straight forward.
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Old 06-06-2019, 06:29 PM
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Thanks for the reply.
I can get a used diff for $1400. Supplier says 12months warranty but only if installed by a qualified mechanic...and I will need to tell him who is installing it.
Doesnít look like a particularly difficult job..but Iím not certain.
A mechanic friend said heíll install it for $700....so maybe Iíll just get him to do it.
I HATE having to get someone else to work on my vehicles....I always do my own.
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  #4  
Old 06-06-2019, 06:33 PM
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Join Date: May 2019
Location: florida
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tmat1977 is on a distinguished road
anyway to check rear diff fluid

just wondering if there any way to check rear diff fluid? before mine goes kaboom

how many miles on it when yours went out

i have 135k on mine runs smooth just need some preventive maintence
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  #5  
Old 06-06-2019, 06:37 PM
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Mine ka-boomed right at 100k... after driving me insane for 4, 5, 6 months with this hanness shimmy through the floor, it was awful - I took it to a handful of places and 3 out of 5 times I was told to drive it until it breaks, we have no idea and the other 2 I was told "we need to start with the brakes"... yea, the brakes.
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Old 06-06-2019, 06:47 PM
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Quote:
Originally Posted by Purplefade View Post
Mine ka-boomed right at 100k... after driving me insane for 4, 5, 6 months with this hanness shimmy through the floor, it was awful - I took it to a handful of places and 3 out of 5 times I was told to drive it until it breaks, we have no idea and the other 2 I was told "we need to start with the brakes"... yea, the brakes.
did they say anything about the guibo apparently that goes out alot and a simple replacement prolongs the life of your rear diff
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Old 06-06-2019, 07:01 PM
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Mine has about 200k Km’s on it.
2007 3.0d with the sports pack (so huge wheels).
According to all info...the diff oil is ‘lifetime’ so no need to change. However...my mechanic mate said it should be changed at 60k (kilometres).
I believe it has to be ‘sucked’ out.
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  #8  
Old 06-06-2019, 07:36 PM
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We looked at it, but at the time it was solid, no quibo issues.


That said, if you have a bad quibo it is definitely better to replace it vs have it vibrate and stress the csb and the diff for sure.



When I got the shimmy, everyone checked the tires, csb, bearings, you name it, but no one ever got around to telling me that I needed a diff before it ka-boomed.
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  #9  
Old 06-06-2019, 11:07 PM
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Location: Los Angeles
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Quote:
Originally Posted by hquick View Post
Hey everyone...been a while.
As my X5 is my daily driver...I pretty much never do anything worth mentioning.
A couple of weeks ago...the rear diff went BOOM..completely out of the blue.
Has anyone else had this happen?
How hard is it to change? (Iíd say Iím reasonably competent...mechanically).

Thanks for any/all advice


What year model engine miles ?
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  #10  
Old 06-06-2019, 11:11 PM
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2007 3.0d
about 200K kilometres on it (I'm in Australia).
Very small amount of towing (7x5 trailer with 3 trail bikes...3 times).
Has the sports pack on it...so 20" 'wide' wheels.
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