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
4Original wording in English
AUDI
Reported code forms P218100
This bulletin contains information regarding a cooling DTC P218100 and proper cooling guidelines.
AUDI
Reported code forms P218100
The MIL is on due to DTC P218100 being stored in the ECM. The coolant temperature gauge does not work, the vehicle does not reach operating temperature, and the cooling fan runs constantly. The coolant temperature…
AUDI
Reported code forms P218100
Supersedes Technical Service Bulletin Group 01 number 14-70 dated March 10, 2014. The MIL is on. DTC P218100 is stored in the engine control module. If the measured engine temperature does not reach the value in the…
AUDI
Reported code forms P218100
The MIL is on. DTC P218100 is stored in the ECM. If the measured engine temperature does not reach the value in the timing map after a specified air flow, DTC P218100 will be 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.