Question about 2001 Audi TT

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Coolant warning lights keeps coming on

Yesterday I noticed that the coolant warning lights flashing.On checking I realized the coolant level was almost minimum.I filled it up and drove home with out the light coming back on.This morning when I started the car the light came on again, the coolant level was low again.once againg I filled it up and before I could reach to work (less than half hour) the warning lights came on again.I read previously that the coolant sensor could be malfunctioning or maybe there is a leak.Any suggestions?

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  • susan868 Nov 05, 2008

    Thank you very much, I will let you know if it works

  • susan868 Nov 06, 2008

    I sent the car in yesterday for the audi machanic to have a look.I think it was the best option for me at the time.I had bought a green coolant but was not sure if there was a certain colour to be used,good thing I used distilled water.Thanks for the tip louisdicamil now I know to use the G12 coolant -orange.I appreciate both solutions given to me in such a short time,this has been very hefpfull and I would apply the solutions in future before I take it into the shop.

    Thanks

  • Anonymous Mar 23, 2014

    MY CKECK COOLANT LIGHT KEEPS COMING ON BUT COOLANT IS FULL IT DID IT ONCE BEFORE BUT WENT OFF BUT NOW ITS BACK ON

  • Anonymous Mar 27, 2014

    low coolant light comes on coolant is full put new switch in also checked for power to switch with a test light and no power

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Audi TT's only take G12 coolant (vw/audi propriatary formula) you can add some distilled water to the water level to prevent the light from coming on, but as you explained you keep adding fluid (of some kind) and the warning like returns. that's a little evident that you have a leak somewhere.

put some paper towels or something under your car when you park it for the evening. when you come out the next day, pull the car away from the spot and look at the paper towels. if they have orange drops, that's your G12 coolant leaking. like McMuff460 said, check all the clamps/hoses for signs of the leak. if you don't find anything i reccomend taking it to a shop for them to check out. Your water pump might be on it's way out.

Don't ever put any other fluid other than G12 coolant and distilled water into your car's coolant system. It will cause some major issues with seals, leaks, and cooling performance.

Posted on Nov 06, 2008

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Hello what i would do replace the fluid level run your car with the heater on hood up watch under your car for any fluid leaking if so try to determin about where it is coming from one of the hoses could have a small hole or a clamps not tight enough the right way is with a pressure checker but this is the best way for non proffesional rule out all hoses clamps and over flow bottle leaks before you start replacing parts goodluck please rate thanks

Posted on Nov 05, 2008

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