Question about 2002 BMW 5 Series

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Bmw 5 series Hot start problem

Does any one share the same problem with my bmw -5 series 2.5 diesel
will not start following a warm up It takes for ever turning it over
some one said it sound like pump or fuel filter .

i would like any comments or answer,s please.

Thank for your time

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  • BMW Master
  • 1,179 Answers

Hi
if the battery is ok
then please look into starter motor
they are known to go bad.

Posted on Feb 06, 2018

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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HalfmoonUSA

  • 145 Answers

SOURCE: BMW 525i will not start

There are six fuse panels for an E39 BMW
Fuses F1 - F45, fuse panel 1, glove compartment. Twist white plastic retainers 90 degrees and pull down from top of glove compartment.
Fuse 31 (10 amp) protects fuel pump relay(K96)

Fuses F46 - F6, fuse panel 2, trunk located behind right side luggage compartment interior panel.
Fuse 54 (15 amp) protects fuel pump relay(K96)

Before I would do any of the following, I would check the above fuses and put a bottle of HEET into the fuel tank. Fuel filter changing is not hard, but it will take you about an hour.
The fuel pump is another story (BMW has a special spanner wrench(16 1 020) to remove and install the threaded collar.

E39 BMW use a two-lobed fuel tank(think saddle bag like). Each with its own fuel level sending unit that has a float connected to a variable resistance wiper contact. To equalize fuel level between the two tank lobes, a siphon pump is installed in the left lobe. The resistances need to be approximately the same. The fuel pump is on the right lobe under the tank sending unit beneath the threaded collar at the top of the fuel tank which is accessed by removing the rear seat cushion. WARNING When removing the fuel level sender or the fuel pump, the fuel tank should be drained to 1/4 capacity or below. The fuel in the fuel line is under pressure (45-75 psi). Always unscrew the fuel tank cap to release pressure in the tank before working on the tank or lines. Disconnect battery negative cable.

The fuel filter is located beneath the center of the car near the driver's seat usually under a protective metal cover held on by small screws. Not hard to replace but car will need to be on jack stands and 1/4 tank or less of fuel in the tank. Definitely wear safety goggles or face shield as the fuel will come out on face. Have a fuel catch pan under the filter. Clamp the fuel line before and after the fuel filter(long metal cylinder) before loosening hose clamps. Loosen center clamping bracket and hose clamps on either end of filter. [Some have an inline fuel pressure regulator.(Remove vacuum hose, pull out locking clip, remove fuel pressure regulator).]
Drain fuel from inlet side of filter and check fuel for rust moisture or other contaminats.
Installation is reverse. When installing fuel filter, ensure fuel flow direction arrow points to front. Should have at least 5 liters of fuel in tank before restarting. The fuel pump will be damaged if run without fuel.
PT Stanley

Posted on Jan 23, 2009

greg benton

  • 231 Answers

SOURCE: radio has no sound or intermittent sound.bmw e39 5 series '00.

You might want to suspect a stereo amplifier. Does your car have DSP? In any case, look in the trunk on the left hand side. You will find your radio amplifier back there. It will have about a 3in connector with a bunch of twisted pair wiring. Remove the connector and make sure there is no water contamination. All sound processing takes place in the amp.

Posted on Mar 09, 2009

c17hydro

Greg Bernett

  • 2989 Answers

SOURCE: 1993 BMW 740i not starting, fuel pump location?

Check this:

the fuel pump relay in the trunk on the left side (pasenger)it's right underneath the plastic housing on the inside of the trunk on top of the rear wheel mold. The relay is a 5 prong relay light green in color....... hope this helps, let me know if you found it.

Posted on Mar 17, 2009

Murphybanton

Onifade Adewunmi

  • 2004 Answers

SOURCE: Fuel filter and pump location

The fuel pump is located in the fuel tank while the filter is located in the hood close to the panel.

Posted on Sep 26, 2009

Testimonial: "Good info but what panel does he mean? "

bunnydawg

Roberta Smith

  • 5158 Answers

SOURCE: 2003 bmw 325i no fuel pressure loses power to pump

replace the fuel pump relay

Posted on Dec 03, 2009

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