I have a 2000 BMW 740IL which the starter keeps cranking but not ever time when I turn the ignition. I had the BMW dealer install a new starter but 2 days later the starter continued cranking. Any suggestions?

It's supposed to keep cranking until ignition is acheived that the starter convienience package,its normal operation.If the battery voltage is low then it will only crank when the key switch is completly folded over.So check battery condition under a load with a load tester if batt checks out then look towards the alternater.

You have low voltage problem , check your alternator.

What do you mean (But not over time) if you turn the ignition switch to start position it gives signal to the solenoid when you release the ignition switch it supposed to disengage if it dos not the problem is in the switch or the electronics somehow the starter keeps getting juice from somewhere and keeps going The starter you wasted your money getting a new starter the stupid dealer sou ld know better than that
Christopher
BIMMER AND BENZ AUTOHAUS TORONTO

IS THIS AN AUTOMATIC OR MANUL GEARBOX? COULD BE STARTER RELAY STICKING OR IS THE RINGGEAR ON THE FLYWHEEL DAMAGED HOLDING THE STARTER IN MESH?