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My low coolant light comes on whenever I start my 1991 735 iL. I had the coolant system checked out. It's fine. Which fuse may I take off to stop the warning area from going: "Ding - Low Coola

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Make sure that there is enough fluid in the overflow jug as well as the radiator , I think the jug has a sensor it could be bad, or there may be air in your cooling system tat was not bled out of the bleeder valve if the system was serviced recently.

Posted on Apr 18, 2013

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Posted on Jan 02, 2017

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SOURCE: Coolant warning lights keeps coming on

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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SOURCE: Low Coolant warning Light

on the passenger side of the radiator there should be a coolant level sensor several inches from the top facing the engine. they are known for plugging up with sludge or just going bad. They connect with a metal retaining clip around the outside edge and are easy to change

Posted on Jan 21, 2009

  • 1 Answer

SOURCE: ls400 indicator lights coming on

you need a new alternator

Posted on Mar 27, 2009

jeffbvegas1
  • 520 Answers

SOURCE: The low coolant warning light comes on regularly

it is a float inside the coolant recovery/overflow tank which is easy to replace

Posted on Jun 25, 2009

  • 10 Answers

SOURCE: Coolant light

If you locate the water expansion tank (front of the bonnet, opened, with the pressure-cap to top-up if necessary) - check that there's sufficient coolant in there (check whilst the engine is cold).

If so, you may be suffering the same problem as a lot of RX8 owners, with a dodgy coolant level sensor in the tank. One way to confirm this is to remove the connector to the tank - on the left-hand side of the tank as you look from the front (not the air-conditioning connector, immediately to the left of it, attached to an aluminium billet). Ensure the (now free-hanging) connector from the wiring loom is safely stowed and give it a test drive. If you're satisified that the warning goes away then you know that the level sensor in the tank is faulty (and therefore the warning light is spurious). Unfortunately, that's a pricey item to replace (dealer price, UK, in the region of £200).

Remember, leaving the coolant sensor unplugged to avoid the spurious warnings would mean that a genuine problem that resulted in (catestrophic) loss of coolant would then go undetected, until too late. So do this at your peril.

Posted on Sep 10, 2009

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The process is rather simple and quick, all you need is a flat head screw driver.

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Good Luck!! Don't forget to rate this post!!

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