Hello everyone, new user here with an interesting problem.
I have a 2007 a4 2.0T manual in quattro

Recently when I am in 2nd,3rd, or 4th gear (mostly in 3rd of 4th) when I let go of the accelerator (clutch still engaged) i hear a slight noise i can only describe as a circular rubbing. It is relatively high/medium pitch and kind of resembles a disapating oscillation which only lasts a second or less. I figured I would throw this out there for the collective wisdom of the forums to get a better idea since I wont have time to take it to the dealer for atleast a week. Thank you for any help in advance!

 

"circular rubbing"? WTF is that?

 

That would be your turbo spooling down, i know exactly what sound your talking about cuz mine does it too. I don't like the sound, it sounds like a bad sound but all it is, is your turbo slowing down .

 

I think it sounds cool.

While we're talking about weird sounds, when I open my driver's door to get in the car, there is a short 1-2 second electronic grinding sound. It sounds like the power seat moving, but it's not. Anyone know what that is? I keep opening the door and looking really quickly to see if I can see something changing, but I can't. Doesn't bother me--just curious.

 

King:

It is your low pressure fuel pump turning on. It does it when the car has been parked for more than 1/2 hour or so. It is bringing system pressure up to so the high pressure pump won't go dry on start up

 

Wow, really? Thanks! I wasn't concerned by it, I just couldn't figure out what it was and it was sort of driving me nuts. At first, I thought it was an "easy entry seat" sort of thing, but I didn't think Audi had those and anyway, my seat is nearly all the way back.

Thanks again, Audi Dan.

 

That is why I usually open one of the other doors if I have to get into the car to get something. The manual states that you should not open the drivers door fequently without starting the car, it can damage the low pressure pump. I am always having to get into my car to get things.

 

haha. me too.

my golf makes the same kind of noise when i open the drivers side door too.

 

****... I never knew about the fuel pump engaging... nice to know.