[V6-12v] Fun troubleshooting an oil leak in a snowstorm...

Kent McLean kentmclean at comcast.net
Wed Feb 18 16:58:15 PST 2009

Rob Beatty wrote:
> 95 A6 sedan with V6-12V is leaking oil off the rear lower corner of the oil
> filter housing.  I took the filter off today.  Tightened down the bolt
> behind it but its still coming out in a steady stream when the car is
> running.  Doesn't leak when its not running.  As its snowing out there right
> now, getting under the car is not something I am really interested in doing
> tonight, so I will wait.  Any thoughts?  Could it be the seals in the filter
> housing/oil cooler?  

Sometimes when you remove an oil filter, its rubber seal
stays behind. When you screw the new one on, the two seals
don't seal so well, and leak badly. I'd double check for
a left-over seal.

Kent McLean
'99 A4 Avant, V6 Tiptronic
'91 200 TQA #3, with mods
gone: '91 200 TQA x2, '94 100 S Avant, '89 200 TQ

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