P2181 — Audi — Cooling system: operation outside the expected range
In the VAG description, P2181 concerns coolant temperature remaining below the expected range for engine operating conditions.
Meaning, symptoms, causes and checks
In the VAG description, P2181 concerns coolant temperature remaining below the expected range for engine operating conditions.
Affected system: Engine cooling
Symptoms
- Malfunction indicator, weak cabin heating or abnormal temperature indication.
Possible causes
- Faulty thermostat, temperature sensor or connections.
What to check
- Review freeze-frame data and temperature during warm-up; check fitted sensors and independently confirm temperature.