Just bought a 2004 v8 touareg and on the way home from work I got a CEL.
Stopped by O'rilleys and they scanned the codes.
2 popped up.
I figured that P2181 was the thermostat because it takes the car a long time to warm up and the temp guage shows 170 to 200 degrees. Sounds like...
This past week my check engine light came on in my 2006 V8. I immediately checked out the light and it was a P2181 code, which if I'm not mistaken is a general engine cooling system degraded message. Coolant is topped off and water pump seems to be functioning correctly. I can feel fluid flowing...