Renault Clio: D4F, and 740 or 764

IMPORTANT

Consult the safety and cleanliness advice and operation recommendations before carrying out any repair (see 88A, Wiring harness, Wiring: Precautions for the repair, 88A-5).

WARNING

To prevent damage to the wiring harness when refitting, observe the original routing.

REMOVAL

I - REMOVAL PREPARATION OPERATION

• Position the vehicle on a two-post lift (see Vehicle: Towing and lifting) (MR 392, 02A, Lifting equipment).
• Switch off the ignition.
• Remove:
  • the engine cover,
  • the battery (see 80A, Battery, Battery: Removal - Refitting, 80A-1),
  • the air filter box (see Air filter unit: Removal - Refitting) (MR 392, 12A, Fuel mixture),
  • the battery tray (see 80A, Battery, Battery tray: Removal - Refitting, 80A-5),
  • the front section of the front wheel arch liners (see Front wheel arch liner: Removal - Refitting) (MR 393, 55A, Exterior protection),
  • the front bumper (see Front bumper: Removal - Refitting) (MR 393, 55A, Exterior protection).

• Remove:
  • the bolts (1) from the Protection and Switching Unit cover,
  • the Protection and Switching Unit cover.

II - OPERATION FOR REMOVAL OF PART CONCERNED

WARNING

To prevent any risk of noise, premature wear, short circuits, etc. after the refitting operation, mark the wiring routing and how to connect the connectors.

• Disconnect:
  • the air conditioning compressor connector (2),
  • the oil level sensor connector (3),
  • the alternator exciter connector (4).
  • Remove the nut (5) from the alternator positive terminal.
• Disconnect:
  • the connector (6) from the air temperature sensor,
  • the pinking sensor connector (7),
  • the connector (8) from the oil pressure sensor,
  • the coolant temperature sensor connector (9),
  • the engine wiring/injection wiring connection (10),
  • the fuel vapour absorber solenoid valve connector (11),
  • the inlet air pressure sensor connector (12),
  • the coil connector (13),
  • the coil interference suppressor connector (14),
  • the throttle valve connector (15),
  • the upstream oxygen sensor connector (16),
  • the downstream oxygen sensor connector (18).

JA3

• Disconnect the passenger compartment wiring harness/ sequential gearbox wiring connection (17).

• Disconnect:
  • the engine cooling fan assembly connector (19),
  • the engine cooling fan assembly resistor connector (20),
  • the refrigerant pressure sensor connector (21),
  • the fuel injection computer connectors (22),
  • the Protection and Switching Unit connectors (23),
  • the front left-hand wiring connector (34).
• Remove:
  • the nut on the excitation terminal of the starter,
  • the nut on the positive terminal of the starter,
  • the gearbox earth wiring bolt (25),
  • the 30 A fuses from the power feed fuse board,
  • the fuse holders (26),
  • the nut (27) from the power feed fuse board cable,
  • the engine cooling fan assembly earth wiring nut (28) on the front left-hand side member,
  • the fuel injection computer earth wiring nut (29).

JA3

• Remove the earth wiring nuts (24) from the gearbox computer.
• Disconnect the computer connector (33) from the sequential gearbox.

• Disconnect the connector (30) from the reverse gear switch.

JH3

• Disconnect the crankshaft position sensor connector (31).

JA3

• Disconnect the crankshaft position sensor connector (32).

WARNING

To prevent any damage during the removal operation, check that the wiring is free from its mountings (retaining clip, plastic clip, adhesive tape, connector, etc.).

• Unclip:
  • the cylinder head wiring,
  • the engine cooling fan assembly wiring,
  • the sub-frame and cylinder block wiring.
• Remove:
  • the engine wiring harness mounting bolt on the clutch housing,
  • the engine wiring harness.

REFITTING

I - REFITTING PREPARATION OPERATION

• If replacing with more wiring, lock the unused connectors (see Connectors: Sealing and immobilisation) (Technical Note 6015A, 88A, Wiring).

II - REFITTING OPERATION FOR PART CONCERNED

• Refit:
  • the engine wiring,
  • the engine wiring harness mounting bolt on the clutch housing.
• Tighten the engine wiring harness mounting bolt on the clutch housing.
• Connect:
  • the crankshaft position sensor connector,
  • the reverse gear switch connector,
  • the front left-hand wiring connector,
  • the Protection and Switching Unit connectors,
  • the fuel injection computer connectors,
  • the refrigerant pressure sensor connector,
  • the engine cooling fan assembly resistor connector,
  • the engine cooling fan assembly connector,
  • the downstream oxygen sensor connector,
  • the upstream oxygen sensor connector,
  • the throttle valve connector,
  • the coil interference suppressor connector,
  • the coil connector,
  • the air inlet pressure sensor connector,
  • the fuel vapour absorber solenoid valve connector,
  • the engine wiring harness/injection connection,
  • the coolant temperature sensor connector,
  • the oil pressure sensor connector,
  • the pinking sensor connector,
  • the air temperature sensor connector.

JA3

• Connect:
  • the passenger compartment wiring harness/sequential gearbox wiring connection,
  • the sequential gearbox computer connector.

• Refit the alternator positive terminal nut.
• Torque tighten the nut for the positive terminal of the alternator (21 Nm).
• Connect:
  • the alternator exciter connector,
  • the oil level sensor connector,
  • the air conditioning compressor connector.
• Refit the fuel injection computer earth cable nut.
• Torque tighten the fuel injection computer earth wiring nut (8 Nm).
• Refit the nut from the power feed fuse board cable.
• Torque tighten the nut from the power feed fuse board cable (6 Nm).
• Refit:
  • the fuse holders,
  • the 30 A fuses from the power feed fuse board,
• Refit the earth wiring bolt on the gearbox.
• Torque tighten the earth wiring bolt on the gearbox (24 Nm).
• Refit:
  • the nut on the positive terminal of the starter,
  • the nut on the excitation terminal of the starter.
• Tighten to torque:
  • the nut on the positive terminal of the starter (8 Nm),
  • the nut on the excitation terminal of the starter (5 Nm).
• Refit the engine cooling fan assembly earth wiring nut on the front left-hand side member.
• Torque tighten the engine cooling fan assembly earth cable nut on the front left-hand side member (8 Nm).

JA3

• Refit the earth wiring nuts on the gearbox computer.
• Torque tighten the earth wiring nuts on the gearbox computer (8 Nm).

• Clip:
  • the wiring on the sub-frame and the cylinder block,
  • the wiring on the engine cooling fan assembly,
  • the wiring on the cylinder head.

III - FINAL OPERATION.

• Refit:
  • the Protection and Switching Unit cover,
  • the bolts on the Protection and Switching Unit cover.
• Tighten the bolts on the Protection and Switching Unit cover.
• Refit:
  • the front bumper (see Front bumper: Removal - Refitting) (MR 393, 55A, Exterior protection),
  • the front section of the front wheel arch liners (see Front wheel arch liner: Removal - Refitting) (MR 393, 55A, Exterior protection),
  • the battery tray (see 80A, Battery, Battery tray: Removal - Refitting, 80A-5),
  • the air filter box (see Air filter unit: Removal - Refitting) (MR 392, 12A, Fuel mixture),
  • the battery (see 80A, Battery, Battery: Removal - Refitting, 80A-1),
  • the engine cover.

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