Quote:
Originally Posted by redxc60
We have a 2010 XC60 D5 AWD Manual, roughly 70k miles. There is a drone from the rear that starts at 50mph. At first I thought it was a failing wheel bearing but it doesn't get louder with increased speed but does get change slightly with more power.
The local dealer had a look and diagnosed a problem with the rear drive. They have quoted £5k to change the primary and secondary "final drive units". After picking myself off the showroom floor, I thought I'd do some research.
What has really surprised me is that there is barely a mention on the internet of an XC60 AWD rear drive failing. You can usually find about any fault on any car discussed somewhere so clearly this one is not a common fault. There's just one other thread on this forum => http://www.volvoforums.org.uk/showthread.php?t=221154
Does anyone know anything about how these units fail? Is it reasonable to change both units or is the dealer just doing a blind replacement instead of identifying the cause of the problem?
ps We've not had any warning messages about AWD. |
Firstly there are TWO separate units with bearings and their own oil supplies, the rear final drive which most rear wheel drive cars have , then there is the Haldex clutch unit on the front of the final drive which also has a bearing ... Yes they are being very wrong in not diagnosing which is causing the noise , It should be straightforward running it on the lift and listening underneath to the unit .
The bearing in the Haldex is fairly straightforward to change and the final drive can be repaired too . But a dealer will not go that far . parts will be well under £100 ...