Replace the brake pads.
Pull the carpeting behind the brake light. Unclip the assembly, replace bulb.
6 rupees
Where is the answer
replace brake line
Audi has a greedy touch by scaring audi owners that their brakes are bad... It's BS
Audi Front was created in 1933.
Front of the engine, behind the radiator. Not for the faint of heart, or skill to replace.
It's an yellow warning indicator lamp. It lights when brake pads are weared. Now it's time to replace the used brake pads!
DOT 4. Is the recommended brake fluid by Audi.
You need to replace the break pads or you can bodge it up by connecting the two wires
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