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      06-23-2019, 04:04 PM   #33
Sensible_
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Drives: 2008 E90
Join Date: Feb 2012
Location: London

iTrader: (1)

Ok. Well this has ruled out your CAS. It's fine. Your JBE is also fine.

When did the no start problem start?

Have you physically checked the wiring around the DME and DSC? Check the DME relay and look for water ingress.

Yes you can replace the DME. But it's not easy.

Given that both DME and DSC have no comms it suggests maybe something else though.

Could be a break in the PTCAN or something as simple as a bad ground. ISTA will run you through the checks if you run a service plan.

Common ones are ground wire on motor mount, and the one that goes from the water pump harness to the front of the motor.
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