13 31 029 Checking delivery pressure of fuel pump (M62): Notes

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Switch off ignition.

CAUTION: The fuel in the fuel lines is under pressure (approx. 3 bar)!
Catch and dispose of escaping fuel.

Turn fasteners on acoustic cover 90° counterclockwise.

Remove acoustic cover.

Fig 1: Identifying Acoustic Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Remove dust cap (1) from measuring valve on fuel rail.

Fig 2: Identifying Dust Cap

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew check valve (1) on special tool kit 13 5 220.

Mount special tool kit 13 5 220 on fuel rail and tighten knurled nut until hand-tight.

Start engine.

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

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.

Fig 3: Unscrewing Check Valve

Courtesy of BMW OF NORTH AMERICA, INC.