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#1
12-10-2019, 01:27 AM
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E53 3.0d Fuel rail pressure sensor
Hi
I have a starting problem with my car and after sending to mechanic they said its fuel pressure rail sensor problem. Can someone tell me where its located and how to get to it. 
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#2
12-10-2019, 05:32 AM
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Interesting they should tell you the fault but not indicate it's location...
Anywho... it depends on which engine you have. The M57 (<09/2003) has the pressure regulator on the rear of the HPFP and the pressure sensor on the rear end of the main (common) rail. https://www.realoem.com/bmw/enUS/sho...diagId=13_0802 Page 87/88 on this shows more detail... https://www.scribd.com/doc/282834243/M57-en-pdf The newer M57TU (>09/2003) has the flow control valve on the rear of the HPFP, a pressure regulator on the rear end of the main (comon) rail and the pressure sensor at the front of the main (common) rail. https://www.realoem.com/bmw/enUS/sho...diagId=13_0985 More info here - including test proceedures... http://www.londonroadgarage.com/imag...kg&LMCL=UUXura I think you'll need to remove the intake manifold to get at the sensor on both M57 and M57TU engines.
__________________
Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) 
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#3
12-11-2019, 01:07 AM
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Thaks for the pictures. My engine code is M57 D30 (306D1)
Any instruction or diagram how to remove intake manifold?
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#4
12-11-2019, 04:34 AM
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Quote:
Here's the instructions for removing the intake on the M57... https://www.newtis.info/tisv2/a/en/e...nifold/AMMw5XU The newer M57TU is here... https://www.newtis.info/tisv2/a/en/e...nifold/Bu40w7X This video show some of the items you'll need to disconnect - it's for an X3 E83 3.0d but very simliar to the X5 E53 3.0d (i.e. same basic engine). https://www.youtube.com/watch?v=deBNRi3MY6A Three items of note... Firstly, the rail pressure sensor can be seen clearly (to the right of the EGR) in the front views starting about 30secs into the video, even with the intake manifold in place. It's likely that you can remove this sensor without removing the intake manifold. Secondly, if you DO remove the intake manifold, be VERY careful when lifting the manifold clear of the mounting studs - the gaskets are known to fall off the manifold and drop into the engine's intake ports! Thirdly, the X3 video linked above shows the intake manifold has swirl flaps. The M57/M57TU (aka M57N) as fitted to the X5 E53 does NOT have swirl flaps, so don't bother worrying about them. Here's a couple of pictures from my own car - an LCI model, so engine is an M57TUD30. Red arrows show the fuel rail pressure sensor, yellow shows the fuel pressure regulator. Click the images for a larger version. With intake manifold on...  With intake manifold removed...  HTH...
__________________
Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01)
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#5
12-11-2019, 04:49 AM
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Oh, I forgot to add - if your engine IS the earlier model (still not sure but I think it is...) then the fuel rail pressure sensor will be at the BACK of the rail, where the pressure regulator is on my M57TUD30 (yellow arrow location in photo above). Acessing this WILL require the removal of the intake manifold.
__________________
Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01)
Last edited by wpoll; 12-11-2019 at 04:55 AM.
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#6
12-11-2019, 04:49 AM
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Wow, look at all the room in the engine bay!
I've had to shove a 10 y/o midget into my bay just to get coil pack installed.  Sent from my SM-A730F using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course
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#7
12-11-2019, 05:02 AM
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Quote:
  This is what she looks like with her frock back on...  
__________________
Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01)
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#8
12-11-2019, 06:15 AM
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Sure just add that salt to the gasoline as you rub it in...
 Sent from my SM-A730F using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course
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#9
01-13-2020, 06:52 PM
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Hi
Changed fuel pressure sensor and still had the same problem so had to give the car to BMW. They found out that its pressure regulating valve that's faulty. Any schematics or explanations how to get to it  ?
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#10
01-14-2020, 09:00 AM
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Quote:
What was the actual code (low rail pressure on start up)? How much was the rail pressure while cranking?
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