FAILED SMOG. TOOK IT TO SHOP. GUY SAID HE REPLACED THE THERMOSTAT AND TWO SENSORS. WHEN I PICKED IT UP THE ENGINE LIGHT WAS OFF BUT BLUE COOLANT LIGHT STILL ON. NEXT DAY GOT A SMOG IT PASSED. THEN THE ENGINE LIGHT CAME BACK ON. WHAT COULD BE WRONG?
Volkswagen Q&AAsk Your Question
2001 Volkswagen Beetle Question: BLUE COOLANT LIGHT IS ON MOST OF THE TIME. CHECK ENGINE LIGHT IS ON. CODE PO118
Answer #1Greg's Orange Auto (13242 Answers) , Orange, CA - (714) 361-9386globalhelper February 16, 2012, 06:36Master
your blue temp light comes on when car is cold then goes off when warm thats normal. po118 is coolnat temp sensor circuit is high. if he replaced sensor you may have a wiring problem. take it back and tell him your issue and ask them to repair at n/c
ReplySIOUXIE, February 16, 2012, 06:57Rookie
DO YOU MEAN HE WIRED THE SENSOR WRONG?
Replyglobalhelper, February 16, 2012, 07:05Master
no there could be ressistance above specs in the wiring or corrision at the plug