Differential Leak
Thread Starter
Racer
Joined: Dec 2002
Posts: 402
Likes: 0
From: Goose Creek SC
Differential Leak
I've looked through the recent threads on this subject. I'd like some opinions on the situation with my 2003 A4.
Two years ago when the car was two years old, with 7000 miles, I had the left differential cover plate resealed as a warranty issue. It looks like they followed the procedures in the Tech Service Bulletin. Last weekend I had some fun with it in the Great Smokies and Blue Ridge. The day after I returned I noticed a small spot of oil under the differential (about the size of a couple of silver dollars), and an oil film on the left side of the differential. I cleaned it up, took it out for a run, and since then there has been no sign of oil on the differential or under the car. FYI, the car has 14000 miles on it now.
Is it possible that the hard driving caused the differential vent to burp out some fluid? I really don't feel like taking it back to Mr. Goodwrench if I don't have to. It looks like the capacity of the unit is 1.8 quarts, so there should be enough remaining.
Two years ago when the car was two years old, with 7000 miles, I had the left differential cover plate resealed as a warranty issue. It looks like they followed the procedures in the Tech Service Bulletin. Last weekend I had some fun with it in the Great Smokies and Blue Ridge. The day after I returned I noticed a small spot of oil under the differential (about the size of a couple of silver dollars), and an oil film on the left side of the differential. I cleaned it up, took it out for a run, and since then there has been no sign of oil on the differential or under the car. FYI, the car has 14000 miles on it now.
Is it possible that the hard driving caused the differential vent to burp out some fluid? I really don't feel like taking it back to Mr. Goodwrench if I don't have to. It looks like the capacity of the unit is 1.8 quarts, so there should be enough remaining.
Le Mans Master
Joined: Feb 2006
Posts: 5,488
Likes: 4
From: USA
Yes. I had mine done by the dealer a year ago and same thing happened. I took it out one day and she got hotter than normal due to the spirited driving and shortly after I noticed a little drop and thought the dealer didn't fix the problem correctly
But actually there is a one way check valve for overflow. I cleaned up the area that had fluid and have not seen any since.
However, since your seeing silver dollar size drops on the floor as well as fluid from the left side I would watch it carefully for a while
But actually there is a one way check valve for overflow. I cleaned up the area that had fluid and have not seen any since. However, since your seeing silver dollar size drops on the floor as well as fluid from the left side I would watch it carefully for a while
