The stock “black top” coolent temp sensor is one of the most common parts to fail on the 1.8t engine. It is easy to replace with the OE VW part known as the “green top” coolent temp sensor. this part can be easily picked up by any VW parts Dealer.
Pre and Post Cat 02 Sensors
vw/jetta/mk4/common_problems.txt · Last modified: 2012/03/17 15:24 (external edit)