Hydraulic unit

K4J, and 730 or 732

Essential equipment

charging station

pedal press

diagnostic tool

Tightening torques
hydraulic unit mounting bolt on bracket	0.8 daN.m
pipe mounting bolts on the hydraulic unit	1.7 daN.m
hydraulic unit bracket to body bolts	6.5 daN.m
air distributor mounting bolts	0.9 daN.m
air conditioning pipe bolts	0.8 daN.m
BA cover bolts	0.4 daN.m

REMOVAL

• Disconnect the battery, starting with the negative terminal.

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Remove:

• the front right wheel,
• the right-hand front mudguard,
• the undershield.

• Drain the refrigerant circuit using the charging station tool.
• Fit the brake pedal depressor tool on the brake pedal to limit brake fluid flow.

• Remove:

• the engine covers,
• the wiper arm nuts (1),
• the wiper arms,
• the left and right pillars,
• the bulkhead seal (2),
• the plastic rivets (3),
• the cowl grille,
• the water box partition.

• Remove:

• the air resonator housing mounting bolt (4),
• the air resonator housing (5).

WARNING

Do not damage the vacuum outlet on the air distributor. Damage requires replacement of the air distributor.

• Disconnect:

• the brake booster vacuum hose on the air distributor side,
• the ignition coil connectors,
• the throttle body connector.

• Disconnect the air temperature sensor (6).
• Unclip the harness from the engine (7).

• Unclip the fuel vapour recirculation hose (8).
• Unscrew the air filter housing mountings, without removing it from the engine compartment.

• Remove:

• the filter element (9),
• the air filter housing (10),
• the throttle body mounting bolts (11),
• the throttle body.

• Remove:

• the air distributor housing mounting bolts (12),
• the air distributor housing,
• the heat shield mountings.

• Remove the heat shield.

• Remove:

• the lifting eye (13),
• the air conditioning pipe flange bolt on the bulkhead side,
• the air conditioning pipe flange bolt on the receiver/drier side,
• the air conditioning pipe (14) between the bulkhead flange and the receiver/drier (if fitted).

• Remove:

• the condensate drain channel (15),
• the ABS ECU earth terminal mounting bolt (17).

• Disconnect the ECU connector.
• Unscrew the six pipes from the hydraulic unit.
• Unclip the six pipes from the hydraulic unit.
• Remove

• the hydraulic unit bracket mounting bolts (16),
• the "hydraulic unit bracket - hydraulic unit" assembly,
• the hydraulic unit to bracket mounting bolts,
• the hydraulic unit.

INSTALLATION

• Refit in the reverse order of removal.

WARNING

Position the earth terminal with the wires facing down to optimise the seal of the hydraulic unit ECU connector.

• Tighten to the following torques:

• the hydraulic unit to bracket mounting bolts (0.8 daN.m),
• the pipe mounting bolts on the hydraulic unit (1.7 daN.m),
• the hydraulic unit bracket to body bolts (6.5 daN.m),
• the air distributor mounting bolts (0.9 daN.m).

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

Tighten the air conditioning pipe bolts to torque (0.8 daN.m).

WARNING

• Always replace the throttle body seal when it is removed. When the ignition is switched on, the throttle body must carry out a learning cycle for the minimum and maximum stops. Use the diagnostic tool to check that this learning has been carried out correctly.
• Always replace the seals at the ends of the air conditioning pipe with new seals.
• Connect the battery; carry out the necessary relearn procedures (see Battery chapter).

• Bleed the brake circuit using the diagnostic tool (see General, Bleeding the brake circuit, page 30A-5).

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Refill the refrigerant circuit using the charging station tool.

Note:

• Check the air conditioning operates correctly with the fan unit at maximum speed.
• If there is no cooling, carry out a leak check (see Leak Detection).

• Torque the battery cover screws (0.4 daN.m).

K4M, and 760 or 761

Essential equipment

charging station

pedal press

diagnostic tool

Tightening torques
hydraulic unit to its bracket mounting bolts	0.8 daN.m
pipe mounting bolts on the hydraulic unit	1.7 daN.m
hydraulic unit bracket to body bolts	6.5 daN.m
air distributor mounting bolts	0.9 daN.m
air conditioning pipe mounting bolt	0.8 daN.m
battery cover screw	0.4 daN.m

REMOVAL

• Disconnect the battery, starting with the negative terminal.

B84 or C84 or S84, and AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Remove:

• the front right wheel,
• the mudguard,
• the undershield.

• Drain the refrigerant circuit using the charging station tool.
• Fit the brake pedal depressor tool on the brake pedal to limit brake fluid flow.

• Remove:

• the engine covers,
• the wiper arm nuts (1),
• the wiper arms,
• the left and right pillars,
• the bulkhead seal (2),
• the plastic rivets (3),
• the cowl grille,
• the water box partition.

• Loosen the air duct clamps (4).
• Remove the air duct (5).

Note: Do not damage the vacuum outlet on the air distributor. Damage requires replacement of the air distributor.

• Disconnect:

• the brake booster vacuum hose on the air distributor side,
• the ignition coil connectors,
• the throttle body connector.

• Unclip the fuel vapour recirculation hose (8).

• Remove:

• the throttle body mounting bolts (6),
• the throttle body.

• Disconnect the air temperature sensor.
• Remove the engine harness (7).
• Remove:

• the air distributor housing mounting bolts (10),
• the air distributor housing,
• the heat shield mountings.

• Remove the heat shield.
• Remove the lifting eye on the hydraulic unit side.

B84 or C84 or S84, and AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Remove the air conditioning pipe (11) between the bulkhead flange and the receiver/drier.

• Remove:

• the condensate drain channel (12),
• the ABS ECU earth terminal mounting bolt (14).

• Disconnect the ECU connector.
• Unscrew the six pipes from the hydraulic unit.
• Unclip the six pipes from the hydraulic unit.
• Remove:

• the hydraulic unit bracket mounting bolts (13),
• the "hydraulic unit bracket - hydraulic unit" assembly,
• the hydraulic unit.

INSTALLATION

• Refit in the reverse order of removal.

WARNING

Position the earth terminal with the wires facing down to optimise the seal of the hydraulic unit ECU connector.

• Tighten to the following torques:

• the hydraulic unit to its bracket mounting bolts (0.8 daN.m),
• the pipe mounting bolts on the hydraulic unit (1.7 daN.m),
• the hydraulic unit bracket to body bolts (6.5 daN.m),
• the air distributor mounting bolts (0.9 daN.m).

B84 or C84 or S84, and AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Tighten the air conditioning pipe mounting bolts to torque (0.8 daN.m).

WARNING

• Always replace the throttle body seal when it is removed. When the ignition is switched on, the throttle body must carry out a learning cycle for the minimum and maximum stops. Use the diagnostic tool to check that this learning has been carried out correctly.
• Always replace the seals at the ends of the air conditioning pipe with new seals.
• Connect the battery; carry out the necessary relearn procedures (see Battery chapter).

• Bleed the brake circuit using the diagnostic tool (see General, Bleeding the brake circuit, page 30A-5).

B84 or C84 or S84, and AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Refill the refrigerant circuit using the charging station tool.

Note:

• Check the air conditioning operates correctly with the fan unit at maximum speed.
• If there is no cooling, carry out a leak check (see Leak Detection).

• Torque the battery cover screws (0.4 daN.m).

F9Q or K9K

Essential equipment

charging station

pedal press

diagnostic tool

Tightening torques
hydraulic unit to its bracket mounting bolts	0.8 daN.m
pipe mounting bolts on the hydraulic unit	1.7 daN.m
hydraulic unit bracket to body bolts	6.5 daN.m
air conditioning pipe fixing screw	0.8 daN.m
battery cover screw	0.4 daN.m

REMOVAL

• Position the vehicle on a two-post lift.
• Disconnect the battery, starting with the negative terminal.

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Drain the refrigerant circuit using the charging station tool.
• Remove:

• the right-hand wheel,
• the mudguards,
• the bumper,
• the air conditioning pipe clamp fixing screw on the bulkhead side,
• the air conditioning pipe clamp fixing screw on the receiver/drier side.

• Remove the air conditioning pipe (1) between the bulkhead clamp and the receiver/drier.
• Fit the brake pedal depressor tool on the brake pedal to limit brake fluid flow.
• Remove:

• the engine covers,
• the lifting ring,
• the heat shield mountings.

• Remove the sound insulation.

• Remove:

• the condensate drain channel (2),
• the earth terminal fixing screw (4) of the anti-lock braking system control unit.

• Disconnect the ECU connector.
• Unscrew the six pipes from the hydraulic unit.
• Unclip the six pipes from the hydraulic unit.
• Remove:

• the hydraulic unit bracket fixing screws (3),
• the "hydraulic unit bracket - hydraulic unit" assembly,
• the hydraulic unit to bracket mounting bolts,
• the hydraulic unit.

INSTALLATION

• Refit in the reverse order of removal.

WARNING

Position the earth terminal with the wires facing down to optimise the seal of the hydraulic unit ECU connector.

• Tighten to the following torques:

• the hydraulic unit to its bracket mounting bolts (0.8 daN.m),
• the pipe mounting bolts on the hydraulic unit (1.7 daN.m),
• the hydraulic unit bracket to body screws (6.5 daN.m).

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Tighten the air conditioning pipe fixing screws to torque (0.8 daN.m).

WARNING

• Always replace the seals at the ends of the air conditioning pipe with new seals.
• Connect the battery; carry out the necessary relearn procedures (see Battery chapter).

• Bleed the hydraulic unit using the diagnostic tool (Chapter General, Bleeding the Brake Circuit, page 30A-5).

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Refill the refrigerant circuit using the charging station tool.

Note:

• Check the air conditioning operates correctly with the fan unit at maximum speed.
• If there is no cooling, carry out a leak check (see Leak Detection).

• Torque the battery cover screws (0.4 daN.m).

F4R

Essential equipment

charging station

pedal press

diagnostic tool

Tightening torques
hydraulic unit mounting bolt on bracket	0.8 daN.m
pipe mounting bolts on the hydraulic unit	1.7 daN.m
hydraulic unit bracket to body bolts	6.5 daN.m
air distributor mounting bolts	0.9 daN.m
air conditioning pipe mounting bolt	0.8 daN.m
BA cover bolts	0.4 daN.m

REMOVAL

• Disconnect the battery, starting with the negative terminal.

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Remove:

• the front right wheel,
• the mudguard,
• the undershield.

• Drain the refrigerant circuit using the charging station tool.
• Fit the brake pedal depressor tool on the brake pedal to limit brake fluid flow.

• Remove:

• the engine covers,
• the wiper arm nuts (1),
• the wiper arms,
• the left and right pillars,
• the bulkhead seal (2),
• the plastic rivets (3),
• the cowl grille,
• the water box partition.

• Loosen the air duct clamps (4).
• Remove the air duct (5).

Note: Do not damage the vacuum outlet on the air distributor. Damage requires replacement of the air distributor.

• Disconnect:

• the brake booster vacuum hose on the air distributor side,
• the ignition coil connectors,
• the throttle body connector.

• Unclip the petrol vapour recirculation pipe on the solenoid valve (9) side.
• Disconnect:

• the air pressure sensor (10),
• the air temperature sensor (8).

• Remove the engine harness (11).

• Remove:

• the air distributor housing mounting bolts (12),
• the air distributor housing,
• the heat shield mountings.

• Remove the heat shield.
• Remove the lifting eye on the hydraulic unit side.

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Remove:

• the air conditioning pipe (14) between the bulkhead clamp and the receiver/drier,
• the windscreen washer reservoir channel (13).

• Remove:

• the condensate drain channel (15),
• the earth terminal fixing screw (16) of the anti-lock braking system control unit.

• Disconnect the ECU connector.
• Unscrew the six pipes from the hydraulic unit.
• Unclip the six pipes from the hydraulic unit.
• Remove:

• the hydraulic unit bracket fixing screws (17),
• the "hydraulic unit bracket - hydraulic unit" assembly,
• the hydraulic unit bracket fixing screws.
• the hydraulic unit.

INSTALLATION

• Refit in the reverse order of removal.

WARNING

Position the earth terminal with the wires facing down to optimise the seal of the hydraulic unit ECU connector.

• Tighten to the following torques:

• the hydraulic unit to bracket mounting bolts (0.8 daN.m),
• the pipe mounting bolts on the hydraulic unit (1.7 daN.m),
• the hydraulic unit bracket to body bolts (6.5 daN.m),
• the air distributor mounting bolts (0.9 daN.m).

AIR CONDITIONING or AUTOMATIC AIR CONDITIONING

• Tighten the air conditioning pipe mounting bolts to torque (0.8 daN.m).
• Refill the refrigerant circuit using the charging station tool.

Note:

• Check the air conditioning operates correctly with the fan unit at maximum speed.
• If there is no cooling, carry out a leak check (see Leak Detection).

WARNING

• Replace the throttle body gasket every time it is removed.
• When the ignition is switched on, the throttle body must carry out a learning cycle of the minimum and maximum stops. Using the diagnostic tool, check that this learning has been completed correctly.
• Always replace the seals at the ends of the air conditioning pipe with new seals.
• Connect the battery; carry out the necessary relearn procedures (see Battery chapter).

• Bleed the brake circuit using the diagnostic tool (see General, Bleeding the brake circuit, page 30A-5).
• Torque the battery cover screws (0.4 daN.m).