Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Check coolant light

(2002 Volkswagen Passat)
in Fullerton, CA on February 17, 2012
i recently did my oil change and my check coolant light keeps going on, what can it be. i add more coolant but it keeps going on
Displaying 4 answers & 1 comments
Popular Answer
Hello and how are you ?
First things first, Are you adding the correct coolant ? VW are/can be picky about what fluids you use. If you are using VW approved coolant then you need to take a close look and the sensor in the over flow bottle. If it is wet and under the coolant level it could be bad. Make sure that it is in contact with coolant. If it is then unplug it and see it the light goes out. If it dose then most likely the sensor it's self is the problem
Thanks
Sean
Are you constantly loosing coolant? If so you have to have the cooling system pressurized to locate and repair the source of the leak. If the light keeps coming on but the fluid level is OK it is likely the coolant level sensor in the reservoir may be bad.
of Pacific German on February 17, 2012
I disagree, completely. The plug beneath the reservior is the most likely candidate ( assuming the coolant tank was moved to access the filter. Otherwise it may have a leaking cylinder head flange. If it even has a leak.
of Pacific German on February 17, 2012
Call Pacific German, 949-215-7717
ask for Shawn
on April 09, 2012
leaking head gasket and or bad coolant level sensor.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
2007 CLS 550 I added coolant and the check engine light came on.
First my heater went out now my car starts but goes out after a couple minutes of being started.What do you think it is
Didn't find what you were looking for?