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X1 E84 (2011 - 2015)
First generation BMW X1 availbe as a X1 28i with either sDrive (RWD) or xDrive (AWD) or the US exclusive I6 N55 powered X1 35i xDrive.

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Old 08-06-2019, 10:52 AM
Arjon Arjon is offline
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Join Date: Aug 2019
Posts: 5
Mein Auto:
Bmw x1, n47s1 engine

Hello, please anyone can help me,
My engine is power reduced now.

The computer read:
Charging pressure control , control deviation

I check all the vacuum line and I don't have leaks in the tube.
I check the EPDW (electro-pneumatic pressure converter) the vacuum in entry is -0.9 bar (its ok) i check the vacuum with hand pomp gauge in the outlet and start the engine, the pressure in outlet is 0 bar when the engine is on and when accelerate,

I buy new EPDW and the same problem.
Is this electrical problem? Anyone know this problem?

Please help me, i have 2 week that the car is in service, i try 4 service and anyone can do something ***x1f61e;

Epdw is attached
I need your help
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