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      03-22-2018, 11:14 AM   #1
kritonas32
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BMW 328I f30 Flexray Problem

Hello to all im new on this forum. Ihave a big problem my car bmw 328i f30 last 2 weeks shut down all systems (abs airbag esp and motor power less)
no one touch my car because i live in europe and the car is import from usa.
we have make diagnostic and show to us problem on flexray communication. the car have 65000km real and i dont drive much fast. please any help i will approciate because really all bmw dealers avoid to repair the car.
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      03-22-2018, 02:03 PM   #2
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Did the diagnostics show there was no communication across the Flexray or something else? If you have a more detailed description of the all the faults that might help. Don't know much about Flexray, but one of the causes of what you are generally describing is a bad ground some place in the Flexray loop. See this video to get some idea of what I mean:
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      03-22-2018, 03:48 PM   #3
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THANKS FOR THE ANSWER. and yes have problem across to flexray. the point is what diffrent have the usa bmw from the european bmw and no one dont want to update the ecu or something like that
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      03-25-2018, 07:01 AM   #4
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Quote:
Originally Posted by kritonas32 View Post
THANKS FOR THE ANSWER. and yes have problem across to flexray. the point is what diffrent have the usa bmw from the european bmw and no one dont want to update the ecu or something like that
U can call me if u live in Poland , can think about repair your car.
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      12-14-2022, 12:26 PM   #5
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Getting that same
cd9437 - DSC, Flexray: communication Fault.
On my 2013 335i f30 after getting a e tune and 2 step colder plugs

Any help on what this would be ?

Im also having issues starting the vehicle in the morning after sitting in the cold all night, first attemp car will not even try to turn over, lights will all go off and im left with “hood open” message on dash

Shut it all off try again and strts right up

Ive attached my codes as well, I believe the mis fires are tune related, and drive train malfunction is from overboosting and diverter valve failing me about 21psi
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