Red light flash from water temp gauge. Cold weather.

May 13, 2007
1,017
0
Denmark
Hi

Last year I had a map from a danish mapper, back then I could experience "Red light flash from water temp gauge" when I had below 0 celcius. Back then I blaimed the map for being ****. Now I have revo, and I had this problem this morning.
What is this about, some cold/icy water warning or??

Vagcom dont show anything at all, and it will dissapear if I do a ignition off/on later when the car has been warmed up.

/Best regards,
 
Last edited:

swilky23

Active Member
Jul 3, 2008
230
0
rochdale
You need to give the 2 prongs a scrape in the coolant tank with a screw driver that should clear it. It is usually just a buid up of scale on the prongs. Loads of threads on this it all ways happens.
 

godber225r

T15 PJG
Sep 6, 2008
893
0
Whiteley, Hampshire
Or change the coolant tank. They are very cheap from the dealers about £10 for the tank and £4 for the cap and permanently stops the problem.

I scraped the prongs last winter and it stopped it till this year when it came back again so i just changed the tank and its gone.
 
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