LESCOOPER

Thanks for responses - to clarify some of points made: Expansion tank changed because of warning light on dashboard - no overheating. Problem disappeared and only re-emerged recently. Don't know relevance - but it happened after heavy overnight frost. Obviously with new tank coolant (pink) was changed and since it is only a matter of months since job was done has retained its colour. Have not checked underside of oil filler cap - will do as next job. Car is generally running well - still has plenty of power. At the moment this is a niggling problem that I am trying to sort on the basis of prevention better than cure in case there is a greater problem developing. Like me, at 92,000 miles it is feeling the strain and has had a few visits to a & e this year for different faults. Will look to transfer to another page as suggested by Mobilone.

faradaycage - changed expansion tank because of warning light on dash - it temporarily did the trick. Had temperature sensor changed because garage detected this as fault through diagnostics. Changed rad because it was leaking. Sathit - first time I have posted - still finding my way. How do I determine a better section - never been part of forum before and at 79 it can be a little confusing.

Les Cooper - Skoda Fabia 1.4 2002. Coolant warning light flashing 10 seconds after switching on ignition - does not repeat when restarting after warm up. Also happens after plugging in diagnostic tester - this indicates no code errors. Garage has also checked with same results. Problem started prior to replacing coolant expansion tank, temperature sensor and radiator (all by garage). It recently returned after heavy overnight frost. Could faulty thermostat be part of this scenario? One final thought - after run this morning, checked coolant and it appeared dirty. Not done this before, but when checking from cold previously coolant has always been clear.