2015 28d X3 diesel

And Mon · 12-26-2022, 12:52 PM

I need advise on a couple of problems, I don't want to be chasing my tail, it could be this it could be that so I want to know how to identify the real problems without replacing things and crossing my fingers.

1, Poor quality DEF fluid warning with count down activated, I have drained the old fluid just in case and added new. (no change)

2, We took it to the dealer and they found diesel fuel in the wiring harness and wanted to replace everything with a cost of $32,000.00. This is not going to happen.
I need to identify the component that is failing and sending diesel through the harness.

Has anyone else had this problem and how do i fix them? What software is recommended?

And Mon · 12-26-2022, 03:59 PM

I found the problem with the fuel getting pumped around the wire harness. The low pressure sensor just before the pump is faulty, I blew it out (because it had diesel in it) then I started the engine and watched it fill up.
I need to replace the Sensor 8573385 BMW 96745 BMW sensor.

Next try and get rid of the poor quality def error.

Llarry · 01-13-2023, 06:53 AM

No moderators?

jpauley · 05-24-2023, 11:30 AM

Have you gotten this one figured out or fixed yet. I have one in my bay right now that has diesel in the harness and its gotten into the DME. Best I can figure is to replace the harness the fuel line with the sensor and the DME as I have about 100 codes that make no sense.

Side note the car runs great.

IAmSpeed · 12-06-2023, 01:08 PM

2015 ≠ 2025 lol

12-26-2022, 12:52 PM	#1
And Mon Registered 0 Rep 4 Posts Drives: X3 Join Date: Nov 2022 Location: Canada iTrader: (0)	2015 28d X3 diesel I need advise on a couple of problems, I don't want to be chasing my tail, it could be this it could be that so I want to know how to identify the real problems without replacing things and crossing my fingers. 1, Poor quality DEF fluid warning with count down activated, I have drained the old fluid just in case and added new. (no change) 2, We took it to the dealer and they found diesel fuel in the wiring harness and wanted to replace everything with a cost of $32,000.00. This is not going to happen. I need to identify the component that is failing and sending diesel through the harness. Has anyone else had this problem and how do i fix them? What software is recommended?
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12-26-2022, 03:59 PM	#2
And Mon Registered 0 Rep 4 Posts Drives: X3 Join Date: Nov 2022 Location: Canada iTrader: (0)	I found the problem with the fuel getting pumped around the wire harness. The low pressure sensor just before the pump is faulty, I blew it out (because it had diesel in it) then I started the engine and watched it fill up. I need to replace the Sensor 8573385 BMW 96745 BMW sensor. Next try and get rid of the poor quality def error.
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01-13-2023, 06:53 AM	#3
Llarry ///M driver 16491 Rep 500 Posts Drives: 2022 M3 6-speed Join Date: Jun 2006 Location: Oregon iTrader: (0) Garage List 2021 Porsche Macan GTS [6.25] 2022 BMW M3 [9.40]	No moderators? __________________ '22 G80 M3 6-sp Portimao Blue/Tartufo
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05-24-2023, 11:30 AM	#4
jpauley Registered 0 Rep 1 Posts Drives: BMW 2007 335i Join Date: May 2023 Location: USA iTrader: (0)	Update? Have you gotten this one figured out or fixed yet. I have one in my bay right now that has diesel in the harness and its gotten into the DME. Best I can figure is to replace the harness the fuel line with the sensor and the DME as I have about 100 codes that make no sense. Side note the car runs great.
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12-06-2023, 01:08 PM	#5
IAmSpeed Captain 1190 Rep 994 Posts Drives: 2023 X4 M40i (G02) Join Date: Jul 2022 Location: San Francisco Bay Area iTrader: (0) Garage List 2023 BMW X4 M40i [10.00]	2015 ≠ 2025 lol __________________ 2004 Toyota Vios \| 2004 BMW X3 \| 2007 Chrysler Town and Country \| 2007 Ford Escape \| 2008 Honda CRV \| 2017 Nissan Versa Note \| 2017 Toyota RAV4 \| 2017 Toyota Yaris iA \| 2019 Porsche 911 \| 2023 BMW X4 M40i
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