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e92ttcoupe e92ttcoupe is offline
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Default No Boost? - 10-04-2021, 03:20 PM

Any idea what this can possibly mean? When the code is NOT present, I have boost but once the drivetrain malfunction comes up I have nothing.



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Default 10-04-2021, 05:59 PM

What year/motor?


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e92ttcoupe e92ttcoupe is offline
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Default 10-04-2021, 06:09 PM

Quote:
Originally Posted by Mike_L
What year/motor?
2016 N63TU2 if Iím not mistaken
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Default 10-05-2021, 05:55 PM

Found this.

The BMW fault code 120408 technically stands for charging pressure control, deactivation: pressure build-up blocked. In most cases this indicates there's an issue with the boost pressure solenoid. ... There are usually two solenoids on a BMW and You should replace both when one fails.


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e92ttcoupe e92ttcoupe is offline
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Default 10-06-2021, 11:55 AM

Quote:
Originally Posted by Mike_L
Found this.

The BMW fault code 120408 technically stands for charging pressure control, deactivation: pressure build-up blocked. In most cases this indicates there's an issue with the boost pressure solenoid. ... There are usually two solenoids on a BMW and You should replace both when one fails.

Thank you for that. Ima take it in and see what they come up with.
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