Hello We have a 56-plate F-RV, 2.0l petrol (K20A9 if I'm not mistaken), and the engine malfunction indicator light has come on a couple of times so far. Not sure if this is relevant, but this started a couple of days after we got back from a holiday - we left our car for 8 days near the airport. A 60 mile drive back from the airport in the middle of the night passed totally uneventfully, cruise control practically all the way and unusually good fuel consumption reading on the display - 41.2mpg by the time we got home which is very high for this car, but just about within expectations, helped by 50mph speed restrictions due to roadworks. Two days later (Sunday) the malfunction indicator light appears (the car had only done a couple of short journeys in between). The next evening (i.e. Monday), the light went off on the way back from work. We didn't use the car the next day (yesterday), but the day after (i.e. today) the light came immediately back on, and then went off again within 30-45mins later. Took it to a garage who found a stored code even though the MIL had gone off: P2185 Engine Coolant Temperature Sensor 2 Circuit Voltage High. He said wait and see what happens over the next few days. Haven't used the car since but we'll see what happens tomorrow. qui Besides the light, the car has been driving normally, perhaps a slightly unusual noise idling (like a few tiny gaps where the engine cuts out for a fraction of a second every couple of seconds) when the engine is cold but besides from that nothing unusual. My thoughts: So far the light has only initially come on when the is engine cold (though it stays on after it warms up) Second time the light came on it went off much more quickly than the first time, perhaps its just a weird quirk after not being used for a week, or a sensor on its way out but if regularly used might keep working for a bit Or, perhaps both the above are totally irrelevant and its just completely random Any initial thoughts please? I'll try to remember to keep you posted either way.