A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

Rear Diff Leak

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Old Mar 6, 2009 | 11:55 AM
  #1  
specialst's Avatar
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Default Rear Diff Leak

Hey Guys,

I've got a leak from my right gasket on the rear diff. (2003 A4) Just bought a gasket & gear oil from the dealership. Has anybody changed these gaskets before? Where's the fill plug? Any other tips? I heard you should mark the cam bolt and you can probably get away without re-doing allignment after the job...

Thanks,
Alex
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Old Mar 7, 2009 | 05:26 AM
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x1rider's Avatar
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Default I've never done the gasket replacement but...

the oil fill plug is on the side of the diff. (passenger side if I remember well), you can't miss it.
When I did my coilovers and wheel bearings, I did mark the cam bolt for re-assembly but I ended up doing a re-allignment as well.
Before taking the whole differential out, I would probably have a look at the radial shaft seal first, I had a leak in my front differential and it ended up being the radial shaft seal.
Hope this helps.
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Old Mar 7, 2009 | 08:08 AM
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Merkin's Avatar
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Default

gasket? you mean axle seal?
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