318c e46i won't start when warm/hot

Had the aa come out to my house today, I'd just got back from a 250 mile round trip then after the car had stood for half hour tried to start it and it wouldn't this happend two weeks ago after driving for about 1 hour but after 5-6 atempts it started and has been fine until now! The aa checked battery, altinator, and started motor (wouldn't jump start) and now it just won't crank at all! All dash lights are on....there's just nothing at all when I turn the key! Anyway the car is at the garage now, but any suggestions would be great, thanks in advance[/QUOTE]

How old is your battery? If it is more than four years old, you may want to replace it, even though it has been checked. BMW's seem to be very sensitive to battery problems.

perhaps it's the starter...

Battery was replaced 9 month ago, and yeah could be the starter, hopefully garage will sort it with such short notice

temp sensor

Temp sensor?? Garage rang. Auto elec has managed to getae live from the barrel but not to the starter and has replaced the crank sensor and still won't start! Any ideas? It's doing my head in

Managed to get it sorted! It was the imobiliser!!!! The the key chip and imobiliser needed re-programming, the guy done it in 15 mins for £60