OrOr

So, I'm new to the Audi family and don't know all the quirks yet. I have a 2000 1.8t w/60k that makes a whining noise on cold start (first thing in the morning). Once it's warmed up for a few it's fine. Oil is Mobil 1 and its full. Ideas? I assume this is not normal?

hmmracing

you have a leak in the secondary air injection system, one of the hoses have a crack in them or the pump is split, its on the pass side under the bumper, that system only works on cold starts, its a black pump with 2 1" size hoses coming off it. and they are plastic and they always break,

OrOr

rep

3drwhore

how are you so sure thats what the problem is? that air pump makes alot of noise in general when it is working fine.

hmmracing

most likely, they make a lot extra noise when they have a crack in them, its probably the problem, im betting a hose is cracked or popped off or something

OrOr

I'll look at it tonight and post what I find. It definitely sounds like it could be a leak.