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#1
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X5 35 d throwing new codes
04F6F - high torsional vibrations/error hydra;ic pump 004BD9 - injector cylinder 6 control Any idea or direction would be great;y appreciated😀 |
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#2
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Not sure but I have a 2011 X5d so I read these threads with interest. At 138k miles, I've recently replaced the glow plugs and module, throttle/anti-shudder valve, engine coolant and transmission fluid thermostats, low-pressure EGR cooler, boost pressure sensor, EGR temperature sensor and MAFS. A couple of years ago at 118k miles ago, I replaced the active DEF tank, SCR dosing module and NOx sensors. Ive had no DPF issues to speak of.
Could it be a failed injector? Could the other code be a "knock" signal code?
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8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim 2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim |
#3
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Injector 6 could be corroded. Read all of this thread https://xoutpost.com/bmw-sav-forums/...ne-dies-3.html
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#4
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If you clear it, do both come back????
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#5
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Quote:
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#6
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Quote:
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#7
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If you shut the car off the code reader will not pick them up - but if you read the codes with the car running in limp mode they can be cleared and the engine starts to run smooth and normal. So, yes, they come back when the car goes into limp mode but go away if you shut the car off and restart it
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#8
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Injector 6 is dead or dying. I had the same codes 2 months ago
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2012 X5d | Deleted & BRR Tuned | DWR TCU Tune | 10.25" Android 8.1 Screen Build Log https://xoutpost.com/bmw-sav-forums/...efinished.html |
#9
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Quote:
Just thinking out loud.... A diesel high pressure fuel pump, is running and pumping fluid under tremendous pressure into a dynamic system which has 6 'outlets' (fuel injectors) As it runs, at speed, you get a nice rhythmic pulsing- fluid enters, fluid exits...everything is happy. Pump spins... every 40 usec a pulse happens. But then one injector takes a crap. AS a result, the nice "every 40 usec" rhythm is interrupted. Does this result in a odd 'torsional vibration' in that fuel pump?? Id replace #6. |
#10
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Thank you - did you replace or clean it and did you do all injectors?
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