2009 RENAULT TWINGO cooling

19A-47
COOLING
Water chamber: Removal - Refitting
D4F, and 780 or 782
19A
III - FINAL OPERATION
aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) .

19A-48
COOLING
Water chamber: Removal - Refitting
K4M
19A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove:
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the engine undertray.
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) . Special tooling required
Mot. 1448Remote operation pliers for
hose clips .
Mot. 1202-01Clip pliers for hose clips
(large size).
Mot. 1202-02Clip pliers for hose clips
(small size)
Tightening torquesm
water chamber bolts
(initial torque)4 N.m
water chamber bolts12 N.m
heater matrix hose
bracket bolt10 N.m
IMPORTANT
When working in the engine compartment, take
care as the radiator fan(s) may start up unexpect-
edly (risk of being cut).
To avoid any risk of serious burns when the engine
is hot:
-do not open the expansion bottle cap,
-do not drain the cooling system,
-do not open the bleed screw(s).
WARNING
When carr ying out a repair that requires a complete
change, it is essential to flush the circuit with clean
water, blast compressed air through the circuit to
drive out the water, fill and bleed the circuit and
then measure the effective protection.
The cr iteria to be met are:
-protection down to -25˚C ±± ± ±
2 for cold and temper-
ate countries,
-protection down to -40˚C ±± ± ±
2 for "extreme cold"
countries.
WARNING
Before the operation, protect the electrical accesso-
ries to prevent any risk of shor t circuiting and pro-
tect the belts to avoid damaging them.

19A-49
COOLING
Water chamber: Removal - Refitting
K4M
19A
aUsing the (Mot. 1448) or (Mot. 1202-01) or (Mot.
1202-02) remove:
-the cooling radiator top hose clip on the water
chamber,
-the heater matrix hose clip (1) on the water cham-
ber.
aDisconnect from the water chamber:
-the cooling radiator top hose,
-the heater matrix hose.
aRemove:
-the bolt (2) from the heater matrix hose bracket,
-the heater matrix hose bracket,
-the bolts (3) of the engine wiring channel,
-the coolant temperature sensor (see 19A, Cool-
ing, Coolant temperature sensor: Removal - Re-
fitting, page 19A-66) .
aMove aside the engine wiring channel.
aUnclip the wiring at (4) .II - REMOVAL OPERATION
aRemove:
-the coolant outlet unit bolts,
-the water chamber,
-the water chamber seal.
REFITTING
I - REFITTING PREPARATION OPERATION
aparts always to be replaced: Cylinder head cool-
ant outlet unit seal.
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the cylinder head joint face,
-the coolant outlet unit housing if it is being reused.
132444
128456
WARNING
The joint faces must be clean, dr y and free from
grease (avoid finger marks).

19A-50
COOLING
Water chamber: Removal - Refitting
K4M
19A
II - REFITTING OPERATION
aRefit the coolant outlet unit with a new seal.
aPretighten in order and to torque the water cham-
ber bolts (initial torque) (4 N.m).
aTorque tighten in order the water chamber bolts
(12 N.m).
III - FINAL OPERATION
aClip the wiring onto the water chamber.
aFit the engine wiring channel.
aRefit:
-the coolant temperature sensor (see 19A, Cool-
ing, Coolant temperature sensor: Removal - Re-
fitting, page 19A-66) ,
-the heater matrix hose bracket.
aTorque tighten the heater matrix hose bracket bolt
(10 N.m).
aConnect to the coolant outlet unit:
-the heater matrix hose,
-the cooling radiator top hose.
aUsing the (Mot. 1448) or (Mot. 1202-01) or (Mot.
1202-02) fit:
-the heater matrix hose clip,
-the cooling radiator top hose clip.
aRefit the air filter unit (see 12A, Fuel mixture, Air fil-
ter unit: Removal - Refitting, page 12A-13) .aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) .
aRefit the engine undertray.
128456

19A-51
COOLING
Engine cooling fan assembly: Removal - Refitting
C44, and K9K
19A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) )
aDisconnect the battery ( (see Battery: Removal -
Refitting) ).
aRemove:
-the engine undertray bolts,
-the engine undertray,
-the front bumper ( (see Front bumper: Removal -
Refitting) ),
-the left-hand and right-hand headlights (see Halo-
gen headlight: Removal - Refitting) .
aRemove:
-the cooling radiator retaining lug bolt,
-the expansion bottle bolt onto the front upper cross
member,
-the air filter inlet air pipe bolt on the front upper
cross member.
aUnclip and then remove from the front upper cross
member:
-the air filter inlet air pipe,
-the expansion bottle.
aRemove the bonnet lock nuts.
aRemove the « cable - bonnet catch » assembly.
aRemove the front upper cross member ( (see Front
upper cross member: Removal - Refitting) )
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDisconnect the electrical connectors on the engine
cooling fan assembly.
aUnclip:
-the engine cooling fan assembly wiring,
-the coolant hose at the bottom of the engine cool-
ing fan assembly.aPress on the engine cooling fan assembly locking
tabs (1) on the cooling radiator.
Note:
Do not unclip the bonnet release cable to avoid
damaging the cable clip on the lock.
AIR CONDITIONING
120324
Note:
Be careful not to press too hard on the tabs to
avoid breaking them.

19A-52
COOLING
Engine cooling fan assembly: Removal - Refitting
C44, and K9K
19A
aPress on the engine cooling fan assembly locking
tabs (2) on the cooling radiator.
aWithdraw the engine cooling fan assembly from the
cooling radiator from above, while pressing on the
locking tabs.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aFit the engine cooling fan assembly to the cooling ra-
diator.
aClip the engine cooling fan assembly to the cooling
radiator.
aConnect the electrical connectors to the engine cool-
ing fan assembly.aClip:
-the engine cooling fan assembly wiring in place,
-the coolant hose at the bottom of the engine cool-
ing fan assembly.
II - FINAL OPERATION
aRefitting the front upper cross member (see MR 412
Bodywork, 42A, Upper front structure, Cross
member: Removal - Refitting).
aFit the « cable - bonnet catch » assembly.
aRefit the bonnet catch nuts.
aClip and move away from the front upper cross
member:
-the expansion bottle,
-the air filter inlet air pipe.
aRefit:
-the air filter inlet air pipe bolt onto the front upper
cross member,
-the expansion bottle bolt onto the front upper cross
member,
-the cooling radiator retaining lug bolt.
aTighten on the front upper cross member:
-the air filter inlet air pipe bolt onto the front upper
cross member,
-the expansion bottle bolt onto the front upper cross
member,
-the cooling radiator retaining lug bolt.
aRefit:
-the left-hand and right-hand headlights (see 80B,
Headlights, Halogen headlights: Removal - Re-
fitting),
-the front bumper ( (see Front bumper: Removal -
Refitting) ),
-the engine undertray,
-the engine undertray bolts.
aTighten the engine undertray bolts until contact is
made.
aConnect the battery ( (see Battery: Removal - Re-
fitting) ). STANDARD HEATING
120325
Note:
Be careful not to press too hard on the tabs to
avoid breaking them.
Note:
Check that the tabs lock the engine cooling fan
assembly on the cooling radiator correctly.

19A-53
COOLING
Engine cooling fan assembly: Removal - Refitting
D4F, and 772, and AIR CONDITIONING or STANDARD HEATING – D7F, and AIR CONDITIONING or STANDARD
HEATING
19A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) ).
aRemove:
-the battery ( (see Battery: Removal - Refitting) ),
-the battery tray ( (see Battery tray: Removal - Re-
fitting) ),
-the engine computer mounting,
aRemove:
-the air filter unit air inlet pipe bolt on the front end
panel,
-the air filter unit air inlet pipe,
-the air scoop.
aRemove the bonnet catch.
aMove the bonnet lock and release cable unit aside.
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDisconnect the engine cooling fan assembly con-
nectors.
aUnclip the fan assembly wiring harness.
aMove the motor-driven fan assembly wiring harness
aside.
aUnclip:
-the expansion bottle hose from the cooling fan as-
sembly,
-the cooling radiator bottom hose from the cooling
fan assembly.
aUnclip the engine cooling fan assembly.
aRemove the engine cooling fan assembly from
above. .
aIf replacing the fan:
-Remove the engine cooling fan bolts.
-Remove the fan from the fan assembly.
REFITTING
I - REFITTING PREPARATION OPERATION
aIf replacing the fan:
-Fit the engine cooling fan to the motor-driven fan
assembly.
-Refit the cooling fan bolts.
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit the engine cooling fan assembly from above.
aClip the engine cooling fan assembly in place.
aClip:
-the expansion bottle hose from the cooling fan as-
sembly,
-the cooling radiator bottom hose from the cooling
fan assembly.
aFit the motor-driven fan assembly wiring harness.
aConnect the fan assembly connectors.
aClip the fan assembly wiring harness.
III - FINAL OPERATION
aRefit the bonnet catch.
aRefit:
-the engine computer mounting,
-the battery tray ( (see Battery tray: Removal - Re-
fitting) ),
-the battery ( (see Battery: Removal - Refitting) ).
aRefit:
-the air scoop,
-the air filter unit air inlet pipe,
-the air filter unit air inlet pipe bolt on the front end
panel. AIR CONDITIONING
AIR CONDITIONING

19A-54
COOLING
Engine cooling fan assembly: Removal - Refitting
D4F, and 780 or 782
19A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 411, 02A, Lifting equip-
ment).
aDisconnect the battery (see ) (MR 411, 80A, Bat-
tery).
aRemove:
-the front wheels (see Wheel: Removal - Refitting)
(MR 411, 35A, Wheels and tyres),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (MR 412, 55A, Exterior
protection),
-the front bumper (see Front bumper: Removal -
Refitting) (MR 412, 55A, Exterior protection).
aDisconnect the air filter unit air inlet pipe (1) from the
air filter unit cover.
aRemove:
-the air filter unit air inlet pipe bolt (2) from the cross
member,
-the air filter unit air inlet pipe.
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .aRemove using the (Mot. 1448) :
-the radiator top hose clip,
-the radiator degassing hose clip.
aDisconnect:
-the radiator top hose,
-the radiator degassing hose.
aUnclip:
-the lower hose from the engine cooling fan assem-
bly,
-the wiring harness from the engine cooling fan as-
sembly.
aDisconnect the engine cooling fan assembly con-
nectors.
II - REMOVAL OPERATION FOR PART
CONCERNED
a
aRemove:
-the radiator mounting cross member (see Radiator
mounting cross member: Removal - Refitting)
(MR 412, 41A, Front lower structure),
-the « radiator / engine cooling fan assembly » unit. Special tooling required
Mot. 1448Remote operation pliers for
hose clips .
122833
Note:
Hold the radiator during the removal of the radia-
tor lo wer cross member.