Today my C-Max made the warning alarm sound and showed the message "Engine Malfunction" while I was accelerating along a slip road to join the motorway. Nothing seemed to actually stop working and the car continued to drive without a problem. I slowed for a while but got back up to 70 with no issues. I was not too far from home so figured it was best to get home while it was working ok.
When I got home I ran the diagnostics test and it said there were no fault codes, the warning has disappeared since I turned the engine off. The only thing that looks wrong (but I am probably just paranoid), the red light between the temperature gauge and fuel gauge is permanently on when I turn the key - is this normal? I don't remember it being on, but then I never looked too hard at this!
Other people seem to have had this unexplained issue and as I was accelerating when it happened I wonder if it is to do with air intake. A wild guess, but I have felt for a few weeks that the car makes loud air resistance noise when accelerating, something that I had not noticed before. Hard to explain but they are noises that were not there when I first got the car 4 months ago.
Any ideas on what to check?
I will book it into the garage hopefully this week, but it has taken away a lot of confidence in the car despite it being fine for 4 months...