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I left my car at Hartge this monday. They checked the ECU and wiring harness ( nothing wrong visually ), and then installed new parts. Same problem! They then removed all tuning parts, including my Supersprint exhaust - still the same problem with the car OEM!
Now the car has been at the BMW workshop for a couple of days, but they still havenīt found whatīs causing the loss of boost at low rpm / low speed!?
Different ideas from the diagnosis talks about boost pressure sensor, wastegate, vacuum hose etc etc.
So all credit to Hartge for doing a great job.
I really hope BMW will find the cause soon?
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2016 435d xDrive
Previous:2019 M340i, 2014 335dx,2012 M5,2011 550ix,2008 M3,2007 330xd,2005 M5,2004 545iA,2000M5.
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