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
9Original wording in English
AUDI
Reported code forms P1BB400
This bulletin provides information when the MIL is on, or the red coolant lamp lights up; DTC P218100 and/or P1BB400.
AUDI
Reported code forms P1BB400
This bulletin provides information when the red coolant warning lamp comes on OR MIL on, DTC P218100 and/or P1BB400.
AUDI
Reported code forms P1BB400
This bulletin provides information when the red coolant warning lamp comes on or MIL on, and DTC P218100 and/or P1BB400.
AUDI
Reported code forms P1BB400
This bulletin provides information when the red coolant warning lamp comes on or MIL on, and DTC P218100 and/or P1BB400.
AUDI
Reported code forms P1BB400
This bulletin provides information for when the red coolant warning light or the MIL is illuminated, DTC P218100 and/or P1BB400.
AUDI
Reported code forms P1BB400
This bulletin provides information for when the red coolant warning light or the MIL is illuminated, DTC P218100 and/or P1BB400.
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.