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

Follow instructions for fuel pressure testing. Refer to 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 from the fuel filter when the fuel pressure regulator is removed.

Catch and dispose of escaping fuel.

Observe country-specific waste-disposal regulations.

Removing Fuel Tank Underbody Protection On Left: 

Release metal screws (1).

Release screws (2).

Fig 1: Removing Metal Screws Of Fuel Tank Underbody Protection

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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.

Release screw (1).

Fig 3: Bending Wheel Arch Trim And Removing Screw

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Release screws (1).

Fig 4: Removing Screws

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Release screws (1) and (2).

Release nuts (3).

Fig 5: Removing Screws And Nuts

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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.

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).

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

Fig 8: Identifying O-Rings On Fuel Pressure Regulator

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