C3 Leaking Brake Booster

Ringmaster · 07-09-20, 09:31 AM

Folks,

After having the Brake Pressure Reservoir (Bom) replaced on my C3 last week, I noticed a tiny pool of hydraulic fluid on the floor. I felt oil around the pipework going into the BOM and tightened the relevant nuts etc. They were quite tight already.

I now wait to see if that has done the trick, but I was wondering whether 2 new washers should have been used? I am sure my mechanic didn't use any new ones...

Part 11 according to 7zap.com...…..

https://7zap.com/en/catalog/cars/Aud...5085100::85010

mikes2 · 07-09-20, 01:35 PM

If they're sealing washers, they should get replaced.

However some places anneal the old washers and re-use

Ringmaster · 08-09-20, 08:24 AM

Thanks Mike. They are described as Seal washers, so they are probably of the crush variety.
I doubt my mechanic knows what anneal means...

07-09-20, 01:35 PM	#2
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	If they're sealing washers, they should get replaced. However some places anneal the old washers and re-use __________________ 1991 90 quattro 20v sport 1991 90 quattro

08-09-20, 08:24 AM	#3
Ringmaster Senior Member Classic Audi Club Member Join Date: Apr 2008 Posts: 1,326	Thanks Mike. They are described as Seal washers, so they are probably of the crush variety. I doubt my mechanic knows what anneal means...