Renault Koleos Service Repair Manual: Air distribution unit: Removal - Refitting

REMOVAL

I - REMOVAL PREPARATION OPERATION

• Position the vehicle on a two-post lift (see Vehicle: Towing and lifting) (02A, Lifting equipment).
• Drain the refrigerant circuit using the refrigerant charging station (see 62A, Air conditioning, Coolant circuit Draining - Refilling, page 62A-11) .

• Disconnect the battery (see Battery : Removal - Refitting) (80A, Battery).
• Remove:
  • the driver's front airbag (see Driver's front airbag: Removal - Refitting) (88C, Airbags and pretensioners),
  • the steering wheel (see Steering wheel: Removal - Refitting) (36A, Steering assembly),
  • the rotary switch (see Rotary switch: Removal - Refitting) (84A, Control - Signal),
  • the steering column switch assembly (see Steering wheel controls assembly: Removal - Refitting) (84A, Controls - Signalling),
  • the instrument panel (see Instrument panel: Removal - Refitting) (83A, Instrument panel),
  • the solar radiation detector (see 61A, Heating, Insolation sensor: Removal - Refitting, page 61A- 76) ,
  • the tweeter (see Tweeter: Removal - Refitting) (86A, Radio),
  • the front speaker (see Front speakers: Removal - Refitting) (86A, Radio),
  • the display (see Display: Removal - Refitting) (86A, Radio),
  • the navigation screen (see Navigation screen: Removal - Refitting) (83C, On-board telematics system),
  • the CD changer (see CD changer: Removal - Refitting) (86A, Radio),
  • the radio (see Car radio: Removal - Refitting) (86A, Radio),
  • the control panel (see 61A, Heating, Control panel: Removal - Refitting, page 61A-48) ,
  • the starter control panel (see Card reader: Removal - Refitting) (82A, Immobiliser),
  • the central console (see Centre console: Removal - Refitting) (57A, Interior equipment),
  • the dashboard (see Dashboard: Removal - Refitting) (57A, Interior equipment),
  • the dashboard cross member (see Dashboard cross member: Removal - Refitting) (42A, Upper front structure).

• Remove the nut (1) .
• Lift the bulkhead insulation.

• Remove:
  • the bolt (2) of the pipe union,
  • the expansion valve pipe union.

• Disconnect the expansion valve connection pipes (3) .
• Fit plugs into the openings.
• Remove the air filter housing (see Air filter unit: Removal - Refitting) (12A, Fuel mixture).

• Fit the hose clamps (Ms. 583) (4) on the heater matrix inlet and outlet hoses.
• Remove the clips (5) from the heater matrix hoses.
• Disconnect the heater matrix hoses (6) .
• Remove the bracket for the heater matrix pipes (see 61A, Heating, Heater matrix: Removal - Refitting, page 61A-29) .

II - OPERATION FOR REMOVAL OF PART CONCERNED

• Remove the air distribution unit.

• Remove the following air distribution unit components (7) :
  • the fan assembly (8) ,
  • the cabin filter (9) ,
  • the heater matrix pipes (10) ,
  • the heater matrix (11) ,
  • the heating resistor (if the vehicle is fitted with one),
  • the fan assembly control unit (12) ,
  • the expansion valve (13) ,
  • the control cables (if the vehicle is fitted with them),
  • the motors (14) (if the vehicle is fitted with them).

REFITTING

I - REFITTING PREPARATION OPERATION

• Check that the parts are in good condition and if necessary, replace any defective parts.
• Refit the following components to the air distribution unit:
  • the motors (if the vehicle is fitted with them),
  • the control cables (if the vehicle is fitted with them),
  • the expansion valve,
  • the fan assembly control unit,
  • the heating resistor (if the vehicle is fitted with one),
  • the heater matrix,
  • the heater matrix pipes,
  • the cabin filter,
  • the fan assembly.

II - REFITTING OPERATION FOR PART CONCERNED

• Refit the air distribution unit.

III - FINAL OPERATION

• Refit the bracket for the heater matrix pipes (see 61A, Heating, Heater matrix: Removal - Refitting, page 61A-29) .
• Connect the heater matrix hoses.
• Refit the clips on the heater matrix hoses.
• Remove the hose clamps (Ms. 583).
• Refit the air filter housing (see Air filter unit: Removal - Refitting) (12A, Fuel mixture).

• Remove the plugs from the openings.
• Connect the connecting pipes to the expansion valve.
• Refit:
  • the pipe union to the expansion valve,
  • the bolt to the pipe union.
• Torque tighten the pipe union bolt (4 N.m).
• Refit:
  • the bulkhead insulation in its original position,
  • the nut of the bulkhead insulation,
  • the dashboard cross member (see Dashboard cross member: Removal - Refitting) (42A, Upper front structure),
  • the dashboard (see Dashboard: Removal - Refitting) (57A, Interior equipment),
  • the central console (see Centre console: Removal - Refitting) (57A, Interior equipment),
  • the starter control panel (see Card reader: Removal - Refitting) (82A, Immobiliser),
  • the control panel (see 61A, Heating, Control panel: Removal - Refitting, page 61A-48) ,
  • the radio (see Car radio: Removal - Refitting) (86A, Radio),
  • the CD changer (see CD changer: Removal - Refitting) (86A, Radio),
  • the navigation screen (see Navigation screen: Removal - Refitting) (83C, On-board telematics system),
  • the display (see Display: Removal - Refitting) (86A, Radio),
  • the front speaker (see Front speakers: Removal - Refitting) (86A, Radio),
  • the tweeter (see Tweeter: Removal - Refitting) (86A, Radio),
  • the solar radiation detector (see 61A, Heating, Insolation sensor: Removal - Refitting, page 61A- 76) ,
  • the instrument panel (see Instrument panel: Removal - Refitting) (83A, Instrument panel),
  • the steering column switch assembly (see Steering wheel controls assembly: Removal - Refitting) (84A, Controls - Signalling),
  • the rotary switch (see Rotary switch: Removal - Refitting) (84A, Control - Signal),
  • the steering wheel (see Steering wheel: Removal - Refitting) (36A, Steering assembly),
  • the driver's front airbag (see Driver's front airbag: Removal - Refitting) (88C, Airbags and pretensioners).
• Connect the battery (see Battery : Removal - Refitting) (80A, Battery).
• Perform the following operations:
  • fill the cooling system (see Cooling circuit: Draining - Refilling) (19A, Cooling),
  • bleed the cooling system (see Cooling circuit: Draining - Refilling) (19A, Cooling),
  • check the cooling system (see Engine cooling circuit: check) (19A, Cooling),
  • fill the refrigerant circuit using the refrigerant charging station (see 62A, Air conditioning, Coolant circuit Draining - Refilling, page 62A-11) .
• Check:
  • that the air conditioning system is operating correctly (see 62A, Air conditioning, Air conditioning: Check, page 62A-6) ,
  • that there are no leaks (see 62A, Air conditioning, Air conditioning: Check, page 62A-6) .