This site has step by step instructions (with photos), perhaps the A4 is similar. http://audidiy.blogspot.com/2010/04/how-to-replace-brake-light-bulb-on-audi.html
I don't know but that is a sweet ride
This document by Shailesh Govekar explains in detail how to change a brake light bulb on a Audi TT Coupe 2005. http://www.interactioncenter.co.uk/Audi_TT_Coupe_2005.pdf Regards
Very
oil change service
Audi brake switch same as VW Golf (in newer models). A common problem with VW Golf 2002 is the brake light switch. The vehicle won't come out of park if it breaks. The 2002 model had a recall due to faulty brake switches. Read online how to fit it before fitting - easy to break if you don't understand what you're doing.
Get the vag-com cable from eBay for $20 and do it or take it to the Audi they will do it for $30 there is Noway to do it with out vag cable
You should have a Brake Wear Sensor that will give you the light on your dash when it's time to change brake pads.
http://www.audizine.com/forum/showthread.php?t=189157
It is reccomended that one purchases or borrows the special tool needed to perform this otherwise difficult replacement.
DOT 4. Is the recommended brake fluid by Audi.
The 2002 Audi A8 has a V8 engine.