Changing Engine Oil

[colin]

I decided as the car was serviced around 9 months ago and is about to head off on a 'brisk' drive through Germany, that I would treat it to an oil change.

Warmed the engine up yesterday and drained the oil by removing the plug from the base of the oil tank. However just under 4 litres of oil drained out. The oil level was between 1/3 and 1/2 full before I drained it so where has the other couple of litres of oil gone? I am guessing a little is in the filter which I did not plan to change, but that would not account for the difference. Is there another drain plug - possibly somewhere under what would normally serve the function of a sump - which I need to remove to drain the remaining oil?

Any advice gratefully received.

[tuscandom]

there is a plug on the side of the engine,unscrew and most of the oil will come out,i think you need a special sucking tool to get the last bit,i did not have one so i refilled with clean oil ran the car a few miles and changed it again(just to be sure it was clean)retighten carefully as the ally threads wont take any abuse.

[colin]

can you remember which side it is on and do you need to drop the guard / plate to access the plug? I could not spot anything obvious and could only see studs on the underside of the sump which presumably attach it to the crankcase.

[tuscandom]

it is same side as the air filter box on the side near the bottom of the engine,i think you have to remove the underneath guard plate

[XTR2Turbo]

Dry sump tank only holds about half the oil. I don't think early S6s had a readily accessible drain in the sump as the gearbox adaptor plug blocks the access so you need to suck out. Might be different on later cars.