Question about 2002 Volkswagen Golf

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I have a 2002 VW Golf. Over the last few months the coolant light has come on, and after driving for a while it goes off. When back in the car again in comes on. Where do I look under the bonnet to see if there is a problem? Any advice would be appreciated, thank you.

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Well the first thing if you want to check for leaks would be check the coolant reservoir, it's normally along the right or left side of the engine bay with a brightly colored cap.
First check if there is enough coolant, there should be 2 fill lines, lower is cold, the higher one is hot. If the coolant is at the right level then there most likely isn't a leak.
However if it missing coolant;
-Check any hoses or tubes leading out of the reservoir, Take note that there is normally 1 opening or just an open tube leading out of the reservoir or radiator to work as an overflow in case there was too much coolant.
-Check the Radiator for any leaks, or the big hoses from the radiator to your engine
-Check along the engine block for any liquids, If you see any and not sure if it's oil or coolant (usually pretty easy to tell) you can always put a bit on your finger and taste it, coolant is very sweet.
-If you are checking for leaks a way to make them noticable is to pressure test the coolant system, however most people don't have that equipment available at their home so just start the engine and take a look if any liquid is dripping.
If it's not leaking coolant it could be your Cts (Coolant temperature sensor) or a wiring problem

Posted on Feb 07, 2010

Testimonial: "I will take on board what you have suggested and check in the morning when there is more light. Thank you for your advice."

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Inside the radiator bottle is the sensor, alot of times can fix by removing bottle and rinse out up side down with garden hose, if don't fix then would have to replace bottle

Posted on Feb 07, 2010


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