differential problems
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differential problems
Since picking up my XF in September I have had 2 differentials installed in my car. What is up with Jaguar, this is my first one and I am not to enthused about the quality control. Has anyone heard about this problem? I'm not getting to much info from the dealer.
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RE: differential problems
I got my XF also sometime Sept08. The differentail was noisy when cruising at speed between 70Km/hr - 80Km/hr. The agent eventually replaced the differential for me when my mileage was about 4,000KM. Now the diffrential oil leaks out from the seal. The agent asked me to send my car in to get the differential oil seal replaced. Other problems I encountered were the fuel tank cover can not be opened and always need to reset my driver's side window in order to make it automatic wind-up.
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Joined: Nov 2008
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From: Calgary Alberta Canada
RE: differential problems
Rumour is that Jaguar had a run of diffs filled with contaminated lubricant from their supplier. They are replacing them as fast as they can find them. You may have got unlucky and had a duff diff replacement. It is not unheard of for a dealer to cannibalize a stock car to fix a problem with a customer car, or for Jaguar to have supplied some contaminated diffs as spares. It is impossible to tell if the diff is contaminated by looking at it so I say don't blame Jaguar on this one. If the third diff fails then there's som'at wrong with the drivetrain somewhere.
Note also that all new XF differentials have a specified running in procedure just as is the case for the engine. It is important to follow the restrictions in your owner's manual for the specified running in mileage for the differential unit as well. Now your engine is run in it is doubly important to observe this second set of running in restrictions to ensure the replacement diff seats its gear teeth correctly.
For example, if you are driving in slippery conditions you should ensure that the DSC is active to limit wheelspin. You must refrain from hard cornering and high speeds until the diff is fully run in. No other car I have owned has specified running in for the rear axle like the XF does.
Note also that all new XF differentials have a specified running in procedure just as is the case for the engine. It is important to follow the restrictions in your owner's manual for the specified running in mileage for the differential unit as well. Now your engine is run in it is doubly important to observe this second set of running in restrictions to ensure the replacement diff seats its gear teeth correctly.
For example, if you are driving in slippery conditions you should ensure that the DSC is active to limit wheelspin. You must refrain from hard cornering and high speeds until the diff is fully run in. No other car I have owned has specified running in for the rear axle like the XF does.
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RE: differential problems
Thanks jagular for your imformative note. I really love this car and hope your right that this is the last of the problems. I was not informed by the dealer about a break
in period for the new diff, that is a little disappointing.
in period for the new diff, that is a little disappointing.
Veteran Member
Joined: Nov 2008
Posts: 2,606
Likes: 283
From: Calgary Alberta Canada
RE: differential problems
This unusual break in instruction for the rear axle is hidden in the owner's manual right after the engine break in instructions. The dealer might not have been informed either, which is not right but possible.
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