S204 180cdi, no crank no start after engine swap
first time poster here.
just did a engine swap on my s204 (om651.913) but only swaped a short block in, moved everything else over from the old engine. The car has been standing still for 2~ years cause of the engine and I bought it and was planing on using it after the swap. Now the car won’t crank or start with the key, I have shorted the starter to make sure it’s not that and checked every ground point and CAN-bus treminal in the car with nothing being corroded or bad looking. I have a bunch of fault codes but I can’t figure out where they come from.
thanks for any help





When rear door malfunction should not disable the starter, on computer cars lot of things are interlocked, so get those things in order.
I would first focus on the no-crank condition. Can you track the starter connectors up to the SAM? Does it crank when you give it 12Volts on the SAM?
It could be something nasty like the EZS




Anyway, W211 is highly-computerized car, so you should be able to do lot of tests and adaptations with a scanner.
Years ago I bought MaxiEcu, who is excelent scanner, with lot of adaptations, but unfortunately being European -made, doesn't cover some of US modules.
Still it should work on your vehicle, or you can get different, top-end scanner.


