13 53 240 Replacing complete fuel rail (N16)

Special tools required: 

• 13 5 281

Necessary preliminary tasks: 

• Read out fault memory of DME control unit.
• Switch off ignition.
• Remove INTAKE SILENCER HOUSING .

Recycling 

Fuel escapes when fuel line is detached. Catch and dispose of escaping fuel.

Observe country-specific waste disposal regulations.

Remove protective cap (1) from compressed air valve.

Connect compressed air line to compressed air valve.

Blow fuel back into fuel tank with a short blast of compressed air (max. 3 bar).

Fig 1: Identifying Compressed Air Valve Protective Cap

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Unlock and detach fuel line (1).

Check fuel line for damage.

Replace damaged fuel line.

Fig 2: Identifying Fuel Line

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Fig 3: Identifying Double C Clip

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Close off fuel line with special tool 13 5 281.

Fig 4: Closing Off Fuel Line Using Special Tool (13 5 281)

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Release screws.

Tightening torque 13 53 4AZ .

Detach fuel rail (1) from cylinder head.

Fig 5: Detaching Fuel Rail From Cylinder Head

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Unlock connectors (1) and remove.

Remove fuel rail (2).

Fig 6: Identifying Fuel Rail And Connectors

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Lever out retainers (1).

Pull fuel injectors (2) out of fuel injection pipe.

Installation note: 

Replace sealing rings on fuel injectors and coat with anti-friction rubber coating.

Fig 7: Identifying Fuel Injector And Retainer

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