What does the code P2181 mean on this car?

2004 VOLKSWAGEN JETTA
85,000 MILES
Avatar
HWILDE03
  • MEMBER
  • 1 POST
This is a 2.0L engine. The thermostat seems to be working properly it usually runs at 190 when warmed up.
Nov 14, 2011 at 5:23 PM
Advertisement
Avatar
RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check and test the coolant temperature sensor-
Nov 14, 2011 at 5:27 PM
Avatar
F4I_GUY
  • ✓ASE Certified Mechanic
  • 3,302 POSTS
  • ASE Certified Mechanic
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.
Nov 17, 2011 at 11:50 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.