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General => The garage => Topic started by: Tomonator1985 on 09 August 2014, 10:45

Title: That Blinking Red Temp light thing......
Post by: Tomonator1985 on 09 August 2014, 10:45

Hi,

I can find loads of threads on basically "how to ignore the red flashing temp light" BUT i wanted to check what is realllllly means apart from high temp before i ignore it or change the sensor.

Light flashes from start up so it can;t be heat related.

Anything else it could be?

Cheers already:)

Title: Re: That Blinking Red Temp light thing......
Post by: itavaltalainen on 09 August 2014, 11:18

talking about a mk2 are we?

could be low coolant warning (or faulty/dirty electrodes in the expansion tank), not sure the mk2 had that already, my mk3 certainly did.

could be faulty temp sender but you can check that with a multimeter easily. i posted a guide in mk3 section few times, the temp/resistance curve on a mk2 is pretty similar but you may still have two separate senders depending on engine

Title: Re: That Blinking Red Temp light thing......
Post by: Tomonator1985 on 09 August 2014, 11:26

coolant is fine. may just give it a good clean then see how it is. then fork out the mighty £4 for a new sensor!

cheers!

Title: Re: That Blinking Red Temp light thing......
Post by: MarcIV on 14 December 2014, 22:03

I have this on my mk4 on start up, I just assumed it was telling me my engine is cold. :laugh: