Excessive oil pressure

[Mikes2]

yes, remove the oil temp sender wire and unscrew the sender.

Have another hand ready as the relief valve and spring will drop out along with some oil

[4WheelDrifter]

Picture of my 3B oil pump, to give you an idea of where the relief valve is.



HTH

[willholmania]

Great. I'll have a crack at it tomorrow then. Thanks for the offer Aelred. I'll let you know what I find when I take it apart. I hoping to hell that it's stuck as I can't for the life of me work out why the oil is being forced into the turbo exhaust housing.

[willholmania]

Brilliant - thanks for your help guys. Fingers crossed and I might even drag this quattro back on to the road this year!

[willholmania]

HAs anyone ever known the oil pressure relief valve to stick and cause excessive oil pressure?

[quattrojan]

I had a meeting between pistons and valves due to high oilpreasure on my S6 AAN.
The car ran great, parked it and then i went to start it up again it somehow hit 4 valves.. Took the thing home and checked timing and everything was as it should be. Totally rebult the engine, got it back in the car and it fired like a dream..
But after 450km of running it in the same damn thing happened again after the car had just been parked for a few minutes.. Thank you Audi for removing the oil preasure gauge in the S6... got a gauge and the thing hit 6-7 bars on idle when hot... so i threw the engine away and bought another one