Quote:
Originally Posted by mplafleur
Does anyone know the system works? Is there a schematic somewhere?
What is the click coming from?
I've noticed a difference in when I try to start the ML:
- Turn key and hear click, nothing else.
- Turn key and hear click and then a noticeable pause before cranking begins. (~ 1 second)
- Turn key and cranking begins instantly.
Maybe this is a starter or starter connection issue?
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There is a MB TSB for this problem dated 02-02-2009 entitled Tip Start Cycle Before Engine Starting.What is happening is the ring gear and starter is sending a false RPM reading to the PCM.The PCM believes the engine has started and shuts off the starter relay.You will notice the tach jump over to the right when you move the key to start position.The TSB says to apply a light coating of a special grease to the ring gear.The grease is approximately $100 a tube and difficult to acquire.I spoke to my local MB service manager who informed me that they use a thin coating of never seize.I applied as instructed and no longer have this problem.Good Luck