Greg Davis

When I lock or unlock my doors with the remote, I hear a buzzing sound that is coming from the rear of the car. It has only started doing it this past week. Is this a problem. The locks work fine. I am just worried about them failing if it continues.
Thanks,
Greg Davis
99.5 A4 2.8QMS

Philip

Probably the gas-cap door lock. Of so, can be fixed with lubrication.

Patrick

I have the same thing....not sure of a remedy.....

donp

the noise is the vacuum pump for the door locks. it's a normal noise unless it gets worse.

MarkC

99.5 doesn't use vacuum door lock mechanism

al

Same problem-i used wd-40-temporary fix...probably longer lasting lubricant will be better.