Mechanics

WHAT DOES THE CODE P2181 MEAN ON THIS CAR?

2004 Volkswagen Jetta • 85,000 miles

This is a 2.0L engine. The thermostat seems to be working properly it usually runs at 190 when warmed up.
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Hwilde03
November 14, 2011.



Check and test the coolant temperature sensor-

Rasmataz
Nov 14, 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.

F4I_guy
Nov 17, 2011.