[WalterMB]

I had the red warning come up yesterday morning after driving about a mile so stopped the engine straight away as instructed and called BMW assistance who were very good. Oil level is fine. Garage so far say they cant find any fault but kept it overnight as said it could be down to the cold weather so want to test again today. Last week it was in because of a low coolant level. No reason was found for it losing coolant. Are there any known problems on these engines and could there be any connection? Its due its 1st service in December at 2 yrs . Currently done 13500 miles. Not happy to accept its due to cold weather as a reason....surely must at least (hopefully) be a dodgy sensor.