temp gauge/stop light warning - 02 tdi c5

benico · Unread post by **benico** » 15 Oct 2009, 08:29

Hi

I went to start the car this morning and the temp gauge warning light was on (and the stop light). There was very little water in the raditator so filled it - but the lights stayed on. The temp gauge was at zero.

Any ideas?

Many thanks
Ben

HDI · Unread post by **HDI** » 15 Oct 2009, 11:00

Thats a typical low coolant warning , I've had that on my Xantia due to a mysterious slow loss of coolant. Just diagnosed it to a leaking expansion tank cap. It was a very slight leak , from top up to the warning light would take 3-4 weeks.
That may not be the cause of coolant loss on your's , you need to check for leaks , water in oil , oil in water etc.