My 2.6 A4 Quattro doesn't seem to warm up very quickly and never gets much over the 60 degree c mark. Similar situation with the Oil temp. Also finding it only scraping through the MOT Lambda.
I think it's the thermostat and have purchased a new one ....but havn't a clue where it is located. Does anyone have any ideas?
I don't think the Quattro is much different from the FWD types where the engine is concerned.