Hi - hope someone can help with this. I'm new to this group so apologies if this has come up before, but I couldn't find the same problem described.
I have a 520i (P reg UK) and last night as I was driving home, I noticed the temp gauge go into the red zone (where the red light came on, which is what made me notice). I thought the engine was overheating and was about to stop, but when I took my foot off the accelerator it went back down to 'normal' temp. I wouldn't have expected this if the engine was genuinely overheating (e.g. if the fan belt had broken or a hose had burst) - in that case I would expect it to stay hot until I switched off. I continued to drive home slowly (only a couple of miles in all), and this behaviour repeated itself a couple of times.
Does anyone know what this could indicate? Could there be a thermostat problem? I was hoping someone would recognise the symptoms and be able to advise.
Thanks
Flummoxed