Astra Engine Overheating

I had a similar issue with my Astra, although it's a bit older. Does the temperature gauge climb pretty quickly? If so, it might be worth checking the speed sensor. A faulty one can prevent the fan from kicking in when it should.

Thanks for the quick reply! The temperature gauge does climb rapidly, yes. Where exactly is the speed sensor located, and is it something I could check myself, or would it be better to take it to a mechanic?

It's usually near one of the wheels, but honestly, unless you're comfortable with car electrics, I'd get it checked at a workshop. A faulty speed sensor was the reason for my fan issue. Cost me around 250€ all in.

Thanks a lot for the advice! I took it to the workshop, and you were spot on – it was indeed the speed sensor causing the radiator fan not to work. They replaced it, and now the cooling system is working perfectly. Cost me 250€ as you said. Appreciate the help!