Hi newbi here.
I have an 08 A3 1.9Tdi and when I'm driving I can here a hiss or air flow sound from the right side air vent dash area. When I press the break pedal the noise reduces and pressing the brakes fully on stops the noise. I'm thinking it has something to do with the vacuum for the servo, would this be a good shout? Also how do I access the servo to check?
One more question, in the centre arm rest there looks to be an electrical connection of some kind, what was this for?
Thanks 😊