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  #1  
Old 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  
Old 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.
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Old 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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Old 12-11-2019, 04:34 AM
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Quote:
Originally Posted by DragonKhan View Post
Thaks for the pictures. My engine code is M57 D30 (306D1)
Any instruction or diagram how to remove intake manifold?
So you have a pre-facelift car - earlier than Sept. 2003?

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...
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Old 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.
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Last edited by wpoll; 12-11-2019 at 04:55 AM.
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Old 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.

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Old 12-11-2019, 05:02 AM
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Originally Posted by EODguy View Post
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
Yep, the M57TUD30 in the E53 is pretty nice to work on. The only real pig is that in the RHD version the steering column runs down right next to the exhaust manifold, over on the right hand side (directly under the washer tank) - and the turbo and A/C lins are down in here also. It's.... tight...



This is what she looks like with her frock back on...



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Old 12-11-2019, 06:15 AM
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Sure just add that salt to the gasoline as you rub it in...

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  #9  
Old 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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Old 01-13-2020, 07:20 PM
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My posts above covered this but here's some more info: -

Fuel system layout... https://www.newtis.info/tisv2/a/en/e...e-line/BWF4dU8

Replacing Pressure Regulator... https://www.newtis.info/tisv2/a/en/e...e-line/BjWWOO3

HTH...
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