13 51 630 Replacing fuel pressure regulator (M54)

FOLLOW INSTRUCTIONS FOR FUEL PRESSURE TESTING 

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: Identifying Screws And Metal Screws

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

Fig 2: Identifying Screws

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Bend wheel arch trim open.

Release screw (1).

Fig 3: Identifying Screw

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Release screws (1).

Fig 4: Identifying Screws

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Release screws (1) and (2).

Release nuts (3).

Fig 5: Identifying 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: Identifying 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: Identifying Fuel Pressure Regulator And Locking Bracket

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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

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