troverman

Hi everyone

Another question: The A8 is leaking a little oil. From where it drips on the ground, it appears to be coming from the very right front corner of the car. From underneath, the whole oil pan looks a little wet. There are a couple of drips of oil on the alternator. What are the usual suspects for a 4.2 leaking oil? Car has 93k on it.

silverd2

If oil is on top of alternator, could be bank #1 cam gear seal(directly over alt) or valve cover gasket on that side. That's a start for places to check.

igotav8

Mine was doing the same thing and it was the oil sending unit. $10.00 for a new one.

tozoM8

What ^^^ he said ^^^ oil pressure sensor right above the oil filter housing.

troverman

Had the car in for tranny service yesterday (indie Euro specialist). Trans fluid & filter change was about $500. Tranny is already programmed to European shift map. Had the mechanic examine the leak; he said the oil pressure sending unit and possibly the right front corner of the headgasket.

silverd2

O-r-r-r-r-r, it could be the oil pressure sending unit

mikeblo

i have the same leak i think its the head gasket me too did you found your problem ?

troverman

Car is still leaking. Replaced the oil sending unit last year and that didn't cure anything. I know the passenger side valve cover is leaking a little, because once in a while you'll smell / see a little smoke coming off the exhaust manifold on that side. That fix I'll do this summer, but if the head gasket is leaking a bit; it'll have to stay leaking.