What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
3Original wording in English
AUDI
Reported code forms U11B900
This bulletin provides information when the volume control cannot be operated; background lighting is not working; DTC U11B900.
AUDI
Reported code forms U11B900
This bulletin provides a software update when the volume control cannot be operated, background lighting not working; DTC U11B900 voume control, no communication.
AUDI
Reported code forms U11B900
This bulletin contains repair instructions for when the MMI volume is not working but the steering wheel volume control is. May or may not have DTC U11B900 stored.
Check vehicle applicability
3A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.