04 c230 kompressor coupe. PO600 error and more




Funny how things can fail at the same time and send you
on a wild goose chase looking for something related to the repair you did.
May not be related at all. Everything you describe sounds like a failing battery.
You want to see CCA at least 1/2 of normal or so.
Anything below that, wierd sheet starts happening.
Battery turns into a giant resistor, and can also cause the alternator to fail.
A battery with 12v and, as previously stated, low CCA, will drive the electrics crazy as well as confuse the 5v canbus system to throw false codes. The load test is your starting point. Diagnostic, next.
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Is the timing chain ok? Not sure if the errors can be related to an longed chain. (?) I'm not an expert for the M271.
Have you checked the wires to the coils and sensor?
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