2004 Volkswagen Jetta Repair Question
Topics covered: Sensor, Thermostat, Coolant.
Mileage: 85,000 miles.
Mileage: 85,000 miles.
Asked on November 14, 2011
What does the code P2181 mean on this car?
This is a 2.0L engine. The thermostat seems to be working properly it usually runs at 190 when warmed up.
Answer
Replied on November 14, 2011
Check and test the coolant temperature sensor-
Replied on November 17, 2011
Replace the ECT and thermostat as a combination. This is very very common. Go to VW and request a new ECT. They will hand you a new sensor that has a GREEN top. if it isn't green, ask for the new superseeded ECT that is green. The one installed on your car is all black, VW has re-designed their ECT's because they are prone to failure.