13 31 029 Checking fuel pump delivery pressure (S54): Notes

WARNING: This page is about a different car, the 2002 BMW M Roadster, 2002 BMW M Coupe, 2001 BMW M Roadster, and 2001 BMW M Coupe. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

13 5 220
13 5 221
13 5 222
61 3 050

Switch off ignition.

CAUTION: The fuel in the fuel lines is under pressure (approx. 5 bar)! Catch and dispose of escaping fuel.

Release screw connections (1).

Remove cover (2) on floor plate on left.

Fig 1: Removing Cover

G03198651

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Ensure seal (1) is in correct installation position.

Fig 2: Checking Seal Installation Position

G03198652

Courtesy of BMW OF NORTH AMERICA, INC.

Remove dust cap (1).

Fig 3: Removing Dust Cap

G03198653

Courtesy of BMW OF NORTH AMERICA, INC.

Connect special tool kit 13 5 220 (comprising 13 5 221 and 13 5 222) to pressure sensor of DIS Tester.

Connect pressure sensor to DIS Tester.

Fig 4: Connecting Special Tool

G03198654

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Do not under any circumstances screw in the check valve up to the mechanical stop.

This could damage the valve in the pressure regulator housing.

Attach special tool kit 13 5 220 to housing of pressure regulator and tighten knurled nut until hand-tight.

Fig 5: Attaching Special Tool To Housing Of Pressure Regulator

G03198655

Courtesy of BMW OF NORTH AMERICA, INC.

Screw out check valve (1) so that valve in pressure regulator housing is closed.

Start engine.

Screw in check valve (1) until a pressure reading is indicated on DIS Tester.

Measuring fuel pressure.

Select Measurement.
Multimeter function appears
Select Pressure test
Read off value of fuel pressure.

Compare actual value of test pressure with specified value. Refer to 13 53 INJECTORS AND LINES, FUEL PRESSURE REGULATOR S54 .

Switch off engine.