Just bought a 2005 Audi A8L. Everytime I turn off the car and walk away it makes a releasing of air noise. Just wanted to know what this is?


Also my tail light has a small crack on the surface, I want to replace it just so the car is perfect. Can I do this myself or just get this done by a local mechanic?

 

Congratulations, it's a great vehicle !

The vehicle is self leveling - that's what you are hearing.
Just be sure it's not sagging overnight as that could be a strut or compressor issue.

You can definitely fix the lamp yourself.
Unfortunately you'll have to buy the whole assembly like this: 2005 Audi A8 Quattro Parts - Audi Wholesale OEM Parts | Audi Genuine Accessories | Audi Branded Collection | Audi USA Parts Online Catalog estore
Otherwise may want to check eBay for one.

 

Thanks man, appreciate the help. I was hoping I wouldn't have to buy all of it and can just get the lens cover part somewhere. I might just leave it as is and fix down the road, not too noticeable.

I got the car inspected and they said all is good. Just need to change tires and battery.

I thought I got a great deal, the car definitely needs some serious interior detailing done though, which I plan on doing myself today and this weekend.

 

You should recode the battery management module when you replace the battery.
If the new one isn't one of the brands listed in VCDS but has the same rating, just increase the serial # by 1.

A little sweat equity goes a long way with these cars.