Audi A6 Audi A6 problems
1. A yellow symbol light is on the instrument panel when I start the car (O), this should be WARNING brake pads WORN. But the old owner has changed the brake pads fairly recently what could be the problem?

2. A red symbol lights up in the instrument panel ((!)) This should be INTERFERENCE IN BRAKE SYSTEM what could be the problem?

3. Air Bag light began to shine from yesterday suddenly just what can be the reason?

Thanks!!

 

Problems 1 and 2 could be a faulty ABS sensor.