Hello all, I've just been to look at an Audi A3 2 T FSI Quattro and all looked pretty good, 2005 with 68k on the clock, had very good service history all done at an Audi specialist and had the cambelt done a year ago. When inspecting the engine I noticed a yellow/mayo type of 'sludge' in and around the oil cap. I've read in a few places that this could be a head gasket issue or condensation mixture as the guy said he hardly ever uses the car since he has a works van. The guy seemed very genuine about all the marks and the previous problems he has had with the car without me even asking.
I would just like to know whether it's a 'common problem' with this type of car and nothing to worry about or whether I should bite the bullet and find another one.