car won't start or turn over. When I turn the key, no sound but a humming sound from the small box attached to engine. Its not a battery issue. Its a 2003 BMWXI
car won't start, battery good. No sound will not turn over on 2003 BMW 325xi
I have a 2005 X3 . Had the same problem it was the ESW moduel . Which is the cars drive away proction system. If the Car computer doesn't sinc with the ESW it demobailizes the starter and the car wont start . It ran me around $700 to replace. But you won't know for sure until you take it to a bmw dealer its $120 for a complete reading of the cars falty codes . Good luck!
3 more answers , 1 more comment
check for an open fuseable link in your starting circuit
I would inspect your starter, make sure that there is a trigger voltage going to the starter solenoid from your ignition switch.
starter getting power/tested with tester/ takiong off starter to go check it to see if its good/ do you have anymore suggestions/thankyou for the info before/my son is taking off starter and doing the checking stuff for me
Take to dealer and reset the ECU it's a security thing with BMW cost bout 110.00.