Diesel filter

K9K

Before any work:

• connect the diagnostic tool (aftersales),
• communicate with the injection ECU,
• check that the injection rail is no longer pressurised,
• beware of the fuel temperature,
• order the special high-pressure injection circuit plug kit.

• Strictly observe cleanliness rules.
• - Always replace the entire cartridge (the diesel filter is contained in a non-removable cartridge).

REMOVAL

• Turn the steering wheel fully to the left.
• Clean the wheel arch.
• Disconnect the battery.
• Remove the washer fluid filler neck.
• Disconnect all pipe connections from the filter.
• Fit the cleanliness plugs.

Avoid contact of the pipe connections with a contaminated environment.

• Remove the access cover (1) from the right mudguard.

• Release the diesel filter from its bracket by pushing the filter upward.
• Extract the diesel filter through the access cover.

INSTALLATION

• Fit the new diesel filter (remove the plugs only at the last moment).
• Reconnect the pipe connections.

• Prime the fuel supply circuit using the priming pump (2) (automatic bleeding).
• Refit in the reverse order of removal.

Connect the battery; carry out the necessary re-learns (see Electrical Equipment chapter).

• Periodically drain the water from the diesel filter through the drain plug (3).
• Some vehicles have a water-in-diesel sensor (4) located on the filter. If water is detected, the injection fault warning light comes on.

F9Q

Before any work:

• connect the diagnostic tool (aftersales),
• communicate with the injection ECU,
• check that the injection rail is no longer pressurised,
• beware of the fuel temperature,
• order the special high-pressure injection circuit plug kit.

WARNING Strictly observe cleanliness rules.

The diesel filter is located behind the right headlamp unit.

It is contained in a removable cartridge. This cartridge incorporates a diesel heater consisting of a resistor and a thermal switch.

Note: To remove the cartridge, remove the complete diesel filter assembly.

REMOVAL

• Turn the steering wheel fully to the left.
• Clean the wheel arch.
• Disconnect the battery.
• Remove the washer fluid filler neck.

• Remove the access cover from the right mudguard (1).

• Disconnect from the filter:

• the diesel heater connector (2),
• the engine fuel supply pipe (3).

• Fit the cleanliness plugs.

Avoid contact of the pipe connections with a contaminated environment.

• Unclip the diesel filter from its bracket through the access cover, following the movements shown in the illustration.

• Disconnect the pipe (4) from the filter coming from the tank.
• Fit cleanliness plugs to the pipe and the filter.
• Extract the filter through the access cover.

• Note the position of the cover relative to the bowl.
• Remove:

• the filter cover screw (5),
• the filter cartridge.

INSTALLATION

• Align the mark on the cover fitted with cleanliness plugs with the mark on the bowl.
• Always respect the position of the connections on the filter.

Fit the new diesel filter (remove the plugs only at the last moment).

• Reconnect the pipe connections.
• Take care not to pinch or damage the pipes.
• Prime the fuel supply circuit using the priming pump.
• Refit in the reverse order of removal.

Connect the battery; carry out the necessary re-learns (see Electrical Equipment chapter).

• Periodically drain the water from the diesel filter through the drain plug (6).
• Some vehicles have a water-in-diesel sensor located on the filter.

  If water is detected, the injection fault warning light comes on.