Differential flange oil seal leak - solution

Solution: use seals that is used both left and right side and I found that 45mm x 60mm x 8mm seal that works with my both cars are: VAG 016409399B

Oil seal used almost every VAG product from 1980 to 2000 in Volkswagen, Audi and Porsche.

Fitment is mutch better then original and is with double seal lip and is ment to be used in both sides.


Perfect Mikael !

Put this very useful info in the cross reference thread please !

 

Thanks Mikael I also have that problem since I did my diff. I had a doudt about the seal because I also saw the arrow were missing on the new one and both I received were the same compared to originals the were different. Will fix it at engine out this winter.

Great find!

 

Great find Mikael...Kiitos
Tobbe

 

Got a new seal from my Canadian friend with a single mirror car out west Jeff and presently doing the job. Jeff ordered the seals after reading this thread and offered me the one he had left. Next friday I go to Montebello(400 miles one way) and it will be a good test for it. If it doesn't leak after that trip I'll tell you.

OK lunch and break is over, time to go back to the garage

 

Claude glad you got the $6 seal I sent you! you owe me big time I replaced my seal and have put on 300 miles in the past few weeks, glad to report no leaks. Thanks again to Mikael for doing the research I hope others will benefit from this as changing that seal is a right PITA.

Cheers
Jeff

 

I just had my differential changed and the mechanic was able to get the directional seals from Ferrari however the car is back at the shop with the left seal leaking among other issues

 

left seal leaking?
sure it is not the cover? broken??

 

Jeff mine was not much PITA. I did it without removing header and halfshaft. I removed the upper outer bolt of the upper suspension arm and moved it up. Unbolted the shaft from the flange and pulled the suspension upright a bit and moved the axle sideway to clear the flange. I worked from the wheelhouse with long extensions. It was done in a few hours.

I also found my oil level was a little higher than it should. I filles it when I was in holiday with the back raised working on the ground. Ths may have not helped the seal to leak.

Mikael, I was able to torque the center bolt with the car in gear and hand brake on.

 

I fitted two standard oil seals I researched and not a mention of a drip. And so much cheaper than the Fpimp.


P

 

if you need this seal please send me a PM
the transport will be more expensive than the seal

 

Regretfully I will not be able to tell if MY seal did the job. The car sold after my first drive and I didn't check if there was any leak. But I know I couldn't smell burn oil like before when I got out of the car.

 

My mechanic was able to source the left side from Ferrari, maybe the dealer he is using has some old stock left, not sure but the replacement one also leaked. He ordered the VW seal and third time is the charm.

 

An old thread I know but still a current problem - for me at least, I think.

I'm very much hoping it's the seal and not the cracked side plate problem.

Mikael, your work and the information you've provided are really helpful, thank you. The engine was out of my car for major work before I got it and it seems possible, given when the work was done, that a wrong seal may be causing my leak.

I've got a replacement double lip seal and now just need to find the best way to fit it.

Anyone like to say what my chances are on the 365 BB without taking the engine out? It's tight in there!