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Hello the crank sensor has nothing to do with these codes and they would not cause the issues you speak of, the 170 is a mixture formation code, which the most common reason for is vacuum lines, maf sensor, manifold cracking the 35 is a code for a turbo bypass control valve, again wouldnt cause your issue. Have you tried charging the battery. One thing I would do first and this works really well on merecedes is a reboot of the computer network and all its modules. This is done by disconnecting both battery cables tying them together after a minute or so operate the ignition switch through all positions, yes the cables are still tied together, then turn key off reattach the cables and if the battery is charged it should crank. I believe you are in logic lock. And as for the codes, my money without seeing it is on a bad maf sensor,
Your right they want on your car use a jumper wire
Before you put the battery in did you tie the cables together? Therr is s very specific reason to do this
Sir I am sorry there is not. Mercedes-Benz is one company that makes it extremely difficult for the owner or even after market repair shops to work on there cars. With out a scan tool and not just any you need there star tester to perform any diagnosis or reset. Rebooting the system like I told you is it.
Sir I have researched your problem and I am sorry to say that I cannot find anything to help you, we've had alot of problems with the ignition switch in this model, but it's not something you could replace there are no manual resets. You can carefully check all fuses and connections at battery. And if you can't find anything tow it to the dealer don't let just anybody work on it
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