Hey everyone! This is Ernie over in Japan. I hate to make my first post a question rather than an introduction but I'm taking the car into a shop tommorow to see what the problem is. Anyways here are the specs:

01 CLK320 (avantgarde edition if that makes a difference)
56,000kms

Here arethe problems.

1)The car sometimes will not start. The engine will crank just a bit but it wont actually start. This isn't a constant problem but it is pretty regular.
2)The car rumbles and runs at a low RPM when in neutral and while not moving. It usually sits at around 6-700RPM. Sometimes, it will be at about 900 and then the rumbling will stop.
3)The computer keeps saying that maintenence is due, however we had it done a while back (not from MB dealership). Is there a way to reset this without dishing out a bunch of money to the dealership?

Thanks in advance everyone!

 

is there any warnings in the dash cluster? like ck engine or maulfunction?