Body Roll

I have the same issue. What exactly did they clean?

RS man

? Cabin air filters. This smell stopped my brother from purchasing a 993RS Clubsport with low miles.......And it was gone

Harry

jimbo3

So, where is the evaporator drain and how does one access it? Anyone know?

mstolo

Well I figured out my problem. I was digging under the hood and noticed that the electrical connector for the rear heater blower had become disconnected. So I guess I was just getting warm air from the engine only (no fresh air) and it smelled like oil. Once I hooked it back up no issues.

Stealth 993

I bet you had some trapped moisture in there, & mold started to grow.

Your best bet is get some 1Z Einszett AC cleaner. This stuff works great! But you may have to use 2 cans on the 993, & put one in the back so it gets into the heater pipes.