HELP(no communication with DME) car cranks but wont start

MartinLjungberg · 04-24-2023, 09:28 AM

I have the same problem.... i get many fault codes about the DME and the car only crank and not start. when i delete the fault codes i can drive it for a while then its shout down again... I have also figure out that when the car get al the fault codes about the DME conection i turn ignition off put a battery charger on + in the engine bay and ground on suspension tower then i can start the car. the voltage before battery charger is about 11.9 volts... please help me!

svhout · 02-16-2025, 02:10 PM

Iv'e the same problem with my E63.
It started that the engine stoped during driving. After a while it started again. So problem solved. Now a few weeks later the enigine stoped and later started again for about 15 min. Now the enigine won't start any more but the enigine does crank. Iv'e checked the fuses and relais. They are all good.
So has anyone any idea of what it could be?
In the attachment is the readout of ISTA. Yeah i know there are a lot of failures in which has nothing to do with this problem but they have been there for ever.

Hoping someone can help me out.

04-24-2023, 09:28 AM	#67
MartinLjungberg Registered 0 Rep 1 Posts Drives: BMW 320d E91 LCI Join Date: Apr 2023 Location: Sweden iTrader: (0)	I have the same problem.... i get many fault codes about the DME and the car only crank and not start. when i delete the fault codes i can drive it for a while then its shout down again... I have also figure out that when the car get al the fault codes about the DME conection i turn ignition off put a battery charger on + in the engine bay and ground on suspension tower then i can start the car. the voltage before battery charger is about 11.9 volts... please help me!
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