13 51 630 Replacing fuel pressure regulator (M62, M54)

WARNING: This page is about a different variant/trim than selected.

Follow instructions for fuel pressure testing. See 13 31 ... NOTES ON FUEL PRESSURE CHECK (REFERENCE PRESSURE: ENVIRONMENT) .

Recycling The fuel in the fuel lines is under pressure (approx. 3 to 5 bar)! Fuel emerges when the fuel lines are disconnected from the fuel filter. Catch and dispose of escaping fuel. Observe country-specific waste-disposal regulations.

Remove fuel pressure regulator.

Removing fuel tank underbody protection on left:

Release metal screws (1).

Fig 1: Removing Metal Screws Of Fuel Tank Underbody Protection On Left

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Release screws (2).

Release screws (1) on wheel arch trim, rear left.

Fig 2: Removing Screws On Wheel Arch Trim, Rear Left

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Bend wheel arch trim open.

Fig 3: Bending Wheel Arch Trim

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Release screw (1).

Release screws (1).

Fig 4: Removing Screws

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Release screws (1) and (2).

Fig 5: Removing Screws And Nuts

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Release nuts (3).

Lower fuel tank underbody protection (1) only until access to fuel filter/pressure regulator is unhindered.

Fig 6: Lowering Fuel Tank Underbody Protection

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Installation:

Check routing of handbrake cable on tank.

If necessary, clip handbrake cable into holders on tank.

NOTE: Fuel pressure regulator is integrated in fuel filter.

Disconnect vacuum hose.

Pull out locking bracket (1) in direction of arrow.

Remove fuel pressure regulator (2).

Fig 7: Removing Fuel Pressure Regulator

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Installation:

Replace O-rings on fuel pressure regulator (1).

Fig 8: Identifying O-Rings On Fuel Pressure Regulator

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To aid installation, apply a thin coat of petroleum jelly to O-rings(1).