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Volkswagen Jetta TDI Car Problems

Check Engine Light Due to Ignition Component/Engine Coolant Temperature Sensor Failure on Volkswagen Jetta TDI

Problem Description and Solution

Due to an ignition component and/or engine coolant temperature sensor failure, the Check Engine Light may illuminate. Replacement of the failed component will be necessary to correct this concern.

(3 people reported this problem)

Problem Data

RepairPal Verified
Average mileage: 150,000 (150,000–150,000)
2 model years affected: 2000, 2004

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Brake problem? Or maybe a faulty head gasket cylinder?
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Device contains two sensors. When first one fails the check engine light goes on. When second one fails the car refuses to run.