Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.
Differential wear?
-
- Member
- Posts: 710
- Joined: Sun Nov 27, 2011 11:29 pm
- Location: South Manchester
Differential wear?
Just had my car in at the dealer to investigate a "new" noise
They've diagnosed a worn diff which needs replacing
Just wondering how common this is?
They've diagnosed a worn diff which needs replacing
Just wondering how common this is?
Z4 ‘13 20i Mineral Grey
Z4 '07 2.5Si Montego Blue
Z4 '07 2.5Si Montego Blue
- Chippie
- Senior Member
- Posts: 2321
- Joined: Tue Apr 30, 2019 9:11 pm
- Location: Wakefield
Differential wear?
I’ve heard that there can be problems with the diff, what’s the noise like, a high pitched wine? And what’s the mileage?
E89 35is space grey Kansas coral red leather
-
- Member
- Posts: 710
- Joined: Sun Nov 27, 2011 11:29 pm
- Location: South Manchester
Differential wear?
No not a whine - more of a slight sucking noise followed by a metal on metal sound
Doesn't coincide with the autobox changing gear or brakes or acceleration
I've got it into my head that it happens more on twisty roads but that could be my imagination
I didn't go out in the car with the technician but apparently they spotted it as soon as they drove it
Who knows it could be a different noise to the one I noticed
Anyway a new diff is on its way from Germany
Mileage is 65K
Doesn't coincide with the autobox changing gear or brakes or acceleration
I've got it into my head that it happens more on twisty roads but that could be my imagination
I didn't go out in the car with the technician but apparently they spotted it as soon as they drove it
Who knows it could be a different noise to the one I noticed
Anyway a new diff is on its way from Germany
Mileage is 65K
Z4 ‘13 20i Mineral Grey
Z4 '07 2.5Si Montego Blue
Z4 '07 2.5Si Montego Blue
- tomscott
- Lifer
- Posts: 7475
- Joined: Mon Sep 19, 2011 12:26 pm
- Location: Manchester
- Contact:
Differential wear?
Is the Dif sealed? BMW quote lifetime fluids but in reality its the "lifetime" of the car which tends to be (dont crucify) 100k 10 years from a general purpose lifetime. (although as we know will go far longer)
In the M its a serviceable part and just had my fluid changed with an inspection 2 which is every 30k. I would assume the Dif fluid can be changed without too much effort and would just keep on top of with the new Dif
In the M its a serviceable part and just had my fluid changed with an inspection 2 which is every 30k. I would assume the Dif fluid can be changed without too much effort and would just keep on top of with the new Dif
-
- Senior Member
- Posts: 2552
- Joined: Fri May 26, 2017 3:40 pm
- Location: Plymouth
Differential wear?
Make sure they check the propshaft centre bearing before you pay out for a diff, they are around £50, if its worn the propshaft will be swinging side to side on twisty roads and making a noise.....
If the noises are not related to accelaration, decellaration in gear and the diff has oil in it I fail to see how they come to this diagnosis..
If the noises are not related to accelaration, decellaration in gear and the diff has oil in it I fail to see how they come to this diagnosis..
Mark
Plymouth
E89
35i
Carmine Red
Black leather
Plymouth
E89
35i
Carmine Red
Black leather
-
- Member
- Posts: 877
- Joined: Sun Apr 26, 2015 7:16 pm
Differential wear?
mcbutler wrote: ↑Thu Sep 16, 2021 2:50 pm Make sure they check the propshaft centre bearing before you pay out for a diff, they are around £50, if its worn the propshaft will be swinging side to side on twisty roads and making a noise.....
If the noises are not related to accelaration, decellaration in gear and the diff has oil in it I fail to see how they come to this diagnosis..
This. They'll need to drop the exhaust and heatshields to correctly diagnose, but it could well cost a lot less than a new diff.
-
- Senior Member
- Posts: 2552
- Joined: Fri May 26, 2017 3:40 pm
- Location: Plymouth
Differential wear?
My indy quoted me £1250 to supply and fit a brand new quaife limited slip diff, and on the 35 you have to cut the crown wheel teeth off and weld them to the new diff!!warmasice wrote: ↑Thu Sep 16, 2021 8:15 pmmcbutler wrote: ↑Thu Sep 16, 2021 2:50 pm Make sure they check the propshaft centre bearing before you pay out for a diff, they are around £50, if its worn the propshaft will be swinging side to side on twisty roads and making a noise.....
If the noises are not related to accelaration, decellaration in gear and the diff has oil in it I fail to see how they come to this diagnosis..
This. They'll need to drop the exhaust and heatshields to correctly diagnose, but it could well cost a lot less than a new diff.
Cant wait to see what BMW are going to charge the OP for their half witted fault diagnosis and second rate workmanship - still at least you get a free wash and polish!!!!
Mark
Plymouth
E89
35i
Carmine Red
Black leather
Plymouth
E89
35i
Carmine Red
Black leather
-
- Member
- Posts: 710
- Joined: Sun Nov 27, 2011 11:29 pm
- Location: South Manchester
Differential wear?
Thanks all
Thankfully it's covered under the AUC warranty
I just hope they've correctly diagnosed the noise
Thankfully it's covered under the AUC warranty
I just hope they've correctly diagnosed the noise
Z4 ‘13 20i Mineral Grey
Z4 '07 2.5Si Montego Blue
Z4 '07 2.5Si Montego Blue
- Chippie
- Senior Member
- Posts: 2321
- Joined: Tue Apr 30, 2019 9:11 pm
- Location: Wakefield
Differential wear?
Well if they haven’t I certainly hope they’re not going to charge you for itjamesgarbett wrote: ↑Fri Sep 17, 2021 10:13 am Thanks all
Thankfully it's covered under the AUC warranty
I just hope they've correctly diagnosed the noise
E89 35is space grey Kansas coral red leather