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

Problem Description and Possible 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.

Problem Data
RepairPal Verified
Average mileage: 150,000 (150,000–150,000)
2 model years affected: 2000, 2004
2 people reported this problem