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  #1  
Old 06-30-2020, 09:21 AM
DBAugie DBAugie is offline
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Mein Auto: 2017 BMW 328d
Maximum drive train output unavailable

2017 BMW 328d, (DIESEL) 80K miles

... And I'm minding my own business, tooling down the road, when, all of a sudden, the control center says, "Maximum drive train output unavailable. Drive moderately.

Has anybody here run into that before? Does anyone know what needs to be done to fix it?

Additional information:

Autophix 7910 obd code reader reports error codes for "Turboboost underpowered".

It also reports "P04D2A" which apparently means a problem with the number three cylinder fuel line.

I'd prefer to use non-dealer mechanics if I can. The dealership service departments have left a bad taste in my mouth and a REALLY deep hole in my wallet.*

* Don't get me wrong, I know this stuff is expensive, but they spend more time incorrectly fixing things that ain't broke than actually dealing with the problem I brought her in for.
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  #2  
Old 07-01-2020, 03:07 PM
John MS John MS is online now
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Mein Auto: 2014 Glacier Silver 328i
Strongly suggest you have a good local BMW mechanic analyze the codes. FWIW I have had good luck with AutoScandia and BMW Alexandria.
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Old 07-01-2020, 03:10 PM
DBAugie DBAugie is offline
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Location: Middleburg, VA
 
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Mein Auto: 2017 BMW 328d
Thanks!

Thanks for the referral.

Gus
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  #4  
Old 07-01-2020, 03:17 PM
DBAugie DBAugie is offline
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Mein Auto: 2017 BMW 328d
Problem resolved!

So, the real, underlying cause of the issue was a linkage between the actuator and the turbo.

The clue was code, 244C00 (Turbo underboost).

Local mechanic was troubleshooting turbo, measured all the vacuum lines, and finally noticed that the linkage that transmitted from the actuator to the turbo was missing! The linkage is a piece of plastic that somehow detached from its holder and fell into the underframe.

He found the missing piece, cleaned it off, re-attached it and all the issues went away!

For reference, the mechanic is "Artie" at Carmontt Auto Service, in Middleburg, VA
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drivetrain 328d, p04d2, turbo 4 cylinder


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