Newbie here with a very stupid and hopefully simple problem.
The coolant light came on the other day so I have bought some coolant gone out to top up the level to see if that would fix it but I just CAN NOT unscrew the expansion tank cap.
I have read of people having problems popping it off after unscrewing it but in my case it just won't budge! Have sprayed with wd40 and hit it with a small hammer
but the damn thing won't move a bit.
I read about a rubber strap wrench??? But don't have one...
Any tips? Am I doing something wrong?