Antifreeze leaking


Asked by Dec 29, 2014 at 10:49 AM about the 2006 Volkswagen Jetta 2.0T

Question type: Maintenance & Repair

Went to have oil change and was told my car is leaking antifreeze.  My check engine light is on and was told I needed a new thermostat.  I asked would that fix leak.  But they could not answer that for me.  Would thermostat cause leak?  It has not over heated.

7 Answers


Yes, it can cause the engine to run hotter than it should, leading to coolant expanding into the overflow bottle and then out the overflow tube to the ground. You don't see a leak under the car because it overflowed while you were driving. It's an inexpensive part to replace.

4 out of 4 people think this is helpful.

Well I was told $450


From Dealer..


You need to check around the car to see if you can find where the coolant is leaking from. You have hoses, radiator, water pump as possibilities.

1 out of 1 people think this is helpful.

LOL, well I hope you told them what they could do for $450... Top off your coolant and run the car in the driveway and see if you can find your leak. Let it get hot and see if it starts running out of the overflow bottle. If it is indeed the thermostat then change it and refill your coolant system with a proper mix of antifreeze. Take it in for a coolant flush, most shops will replace the thermostat as part of that service for around $100.

1 out of 1 people think this is helpful.
Best Answer

Yea I thought that was a bit to much and crazy.. but they couldn't tell me if that would fix my leak...


Oh and they said it would take 4 hours to fix.. VW is trying to get over on me... a shame..

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