not sure if i've posted in the right section so feel free to move as appropriate!
strange thing happened last night with the Astra, i was parked up at Tesco and went to drive home but the car wouldnt start. didnt turn over or anything. I have the easytronic so it was basically like if i tried to start it without having my foot on the brakes, only i was pressing them.
tried a couple of times but nothing, although the dash lights all came on and the stereo played so wasnt a flat battery, then i noticed on the LED display above the stereo, it was showing an "F" where the temperature usually is, and then the service icon thing on the dash started flashing.
i took the keys out, waited a bit then tried again and it started fine and i drove home. turned it off and back on a few times to see if it would do it again but it was fine.
any ideas what the "F" meant?