I have a 2002 Audi A6 Quattro and I have this Warning Symbol Come on SYMNBOL: (O)

It doesnt make any sense. I checked this website for the 2002 TT http://www.raffidesigns.com/my-tt-v1...pe_2002_en.pdf

It says its my Worn Brake Pads... I have pads all around my vehicle. I checked the Brake Fluid Resivour this has that Symbol. But when i go to apply more fluid the Fluid Will not go Down.

Im Clueless..... I just had my Powersteering hose replaced and my Pump and Pully. That is fine now.

I checked my Tire Pressure they are all up to 32PSI.

I dont know what to do anymore but reset the battery.

 

indeed, that's the brake pad symbol. maybe one of the sensor wires has come loose?

 

Agree with previous post. I believe there are only sensors for wear on the front pads. Hope this helps.