Renault Koleos Service Repair Manual: Injector rail - Injectors: Removal - Refitting

2TR

REMOVAL

I - REMOVAL PREPARATION OPERATION

• Position the vehicle on a two-post lift .

• Remove the air inlet sleeve.

• Unclip the cover (1) of the engine interconnection unit.

• Remove the fuse (2) of the fuel pump(F13) (15A).
• Start the engine to relieve the fuel pressure.

• Remove:
  • the battery
  • the battery tray
  • the air filter box
  • the engine cover
  • the air resonator located on the rocker cover
  • the air inlet duct.

• Remove the plug of the fuel supply union.

• Disconnect the quick-release union of the fuel supply (3) using the tool (Mot. 1869) (4) .

• Remove the clips (6) of the petrol vapour rebreathing pipe.
• Disconnect the petrol vapour rebreathing pipe (7) .

• Remove the clips (8) of the oil vapour rebreathing hose.
• Disconnect the oil vapour rebreathing hose (9) .

• Remove the clip (10) from the vacuum pipe of the brake servo.
• Disconnect the vacuum pipe (11) from the brake servo.
• Remove:
  • the windscreen wiper arms
  • the scuttle half-grille
  • the windscreen wiper mechanism
  • the scoop under the scuttle panel grille
• Disconnect the motorised throttle valve connector.
• Remove the motorised throttle valve without disconnecting the coolant pipes.

• Disconnect the injector connectors (12) .
• Remove the intake distributor.

II - OPERATION FOR REMOVAL OF PART CONCERNED

(14) Front of engine

• From the adapter (13) of the intake distributor, remove:
  • in order,the injector rail - injector bolts (15) ,
  • the injector rail (16) .

• From the injector rail guard remove:
  • the clips (17) from the injectors,
  • the injectors (18) .

REFITTING

I - REFITTING PREPARATION OPERATION

• Always replace:
  • the injectors' O-rings,
  • the injector clips,
• Clean the injectors using the INJECTOR CLEANER.
• Lubricate the new O-rings with fresh engine oil.

II - REFITTING OPERATION FOR PART CONCERNED

• On the injectors, refit:
  • the blue O-rings (A) ,
  • The brown O-rings (B) .
• On the injector rail, refit:
  • the injectors ,
  • the new injector clips.

(19) Front of engine

• On the inlet manifold adapter, refit:
  • the injector rail,
  • the injector rail bolts.
• Torque tighten in order the injector rail bolts (22 N.m).

III - FINAL OPERATION.

• Refit the intake distributor.
• Connect the injector connectors.
• Refit the motorised throttle valve.
• Connect the motorised throttle valve connector.
• Refit:
  • the scoop under the scuttle panel grille
  • the windscreen wiper mechanism
  • the scuttle half-grille
  • the windscreen wiper arms
• Connect the brake servo vacuum pipe.
• Refit the clip of the vacuum pipe of the brake servo.
• Connect the oil vapour rebreathing hose.
• Refit the clips of the oil vapour rebreathing hose.
• Disconnect the petrol vapour rebreathing pipe.
• Refit the clips of the petrol vapour rebreathing pipe.

• Connect the quick-release union of the fuel supply.

(C) Direction of the fuel supply pipe
(D) Direction of the injector rail

• Refit:
  • the plug of the fuel supply union
  • the air inlet duct
  • the air resonator located on the rocker cover
  • the engine cover
  • the air filter box
  • the battery tray
  • the battery
  • the fuel pump fuse.
• Clip the cover on the engine interconnection unit.
• Refit the air intake sleeve.