frankvan

I'm looking at a seemingly "perfect" 06 A4 except for one thing, there is a small oil leak from the back of the engine. It appears to be coming from a cover at the back that has the vacuum line going to a splitter and to the brake booster. Looks like a fairly easy fix - remove a few bolts, replace gasket. Can someone tell me what this thing is called at the back of the engine so i can get a quote from a dealer or independent?
(FWIW, i'm fairly handy and confident i can fix myself - i've changed a clutch on a 911! Just want a quote for negotiating).

If needed, i can probably get a picture of it.

TKR

It's maybe a similar problem I had with my 2005 2.0TFSI quattro. Vacuum pump gasket leaked. Mine is European model, BGB engine, but maybe US is identical.

Early 2.0TFSI engines had a pump number 06D145100E and newer pumps are 06D145100F. The gasket is different and in different position in F model.

I tried to fix my E-series pump leak with new gasket (part no 06D145117), but still oil coming out. Finally the solution was to change the whole pump.

It's quite a expensive at least here in Finland, but I managed to find a new one from eBay ~70eur.

You can fid some pictures in Finnish Audi discussion forum here.