Coolant wispy on a 2004 VW Jetta 1.8L turbo (gas)?

The manufacture recomends not to touch the coolant for 100k miles. The coolant even is fine. The coolant tests fine. When the coup¨¦ is cold it beebs and the coolant light comes on. Once it have warmed up upon restart the wishy-washy does not come on. Sometimes the temperature assess works other times it dosen't. The car have 50k miles on it. Never runs hot. PLease help..

Are at hand any Japanese-made (Honda, Toyota,...



Answers:    it may nouns weird but it almost sounds resembling the thermostate has gone unpromising... yeah its a newer car but u never know. If u know how to pocket the thermostate housing apart then do so and embezzle the thermostate inside the house and put it in a small pot near water and fry it to a boil and watch it and see it the thermostate compresses if it doesnt next it is bad and it should be a cheap fix but if it does compress afterwards thats not the problem.

Does an grease drain plug become stripped...


100,000 mi is crazy...change coolant presently and have mechanic transformation sensor.

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