RENAULT TWINGO 2009 2.G Engine And Peripherals Workshop Manual

19A-11
COOLING
Cooling system: Draining - Refilling
D4F or D7F or K4M or K9K
19A
aMaintain the engine speed at 1500 rpm, sharply
varying the engine speed (up to the maximum) 2 to
3 times approximately every 2 minutes until the fan
assembly starts for the second time.
aMaintain the engine speed at 3000 rpm using a ped-
al press, until the fan assembly has been activated
for a third time.
aCheck that the heating is operating correctly.
aAllow the engine to cool until the engine coolant tem-
perature is less than 50˚C.
aRemove the expansion bottle cap.
aAdjust the coolant fluid level to the "Max" mark.
aRefit the expansion bottle cap.
V - FINAL OPERATION
aRemove the coolant recovery tray.
aRefit the engine undertray. K9K
K4M
K4M

19A-12
COOLING
Cooling radiator: Removal - Refitting
D4F or D7F, and AIR CONDITIONING
19A
PARTS AND CONSUMABLES FOR THE
REPAIR WORK
aConsumable : (see Vehicle: Parts and consuma-
bles for the repair)
-COOLANT.
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 front wheels ( (see Wheel: Removal - Refit-
ting) ), (see Front wheel arch liner: Removal -
Refitting)
-the wheel arch liners (see MR 412 Bodywork,
55A, Exterior protection, Wheel arch liners: Re-
moval-Refitting),
-the front bumper ( (see Front bumper: Removal -
Refitting) ).aDisconnect the injection computer connectors.
aRemove:
-the computer mounting bolts (1) ,
-the computer wiring harness clip nut,
-the computer mounting.
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
aRemove the engine cooling fan assembly (see 19A,
Cooling, Engine cooling fan assembly: Removal
- Refitting, page 19A-51) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
a
aRemove:
-the air deflector on the dehydrator reservoir side,
-the engine cooling system radiator upper right-
hand retaining lug,
-the engine cooling system radiator upper left-hand
retaining lug.
aUsing the (Mot. 1448), remove:
-the engine cooling system radiator degassing
hose,
-the engine cooling system radiator top hose, Special tooling required
Mot. 1448Remote operation pliers for
hose clips .
Equipment required
safety strap(s)
120779
IMPORTANT
Wear protective gloves during the operation.

19A-13
COOLING
Cooling radiator: Removal - Refitting
D4F or D7F, and AIR CONDITIONING
19A
-the engine cooling system radiator bottom hose.
aAttach the condenser to the upper cross member of
the front end panel with a safety strap(s).
aRemove the condenser bolts from the radiator.
aUncouple the condenser from the cooling radiator.
aRemove the radiator mounting cross member ( (see
Radiator mounting cross member: Removal -
Refitting) ).
aWithdraw the air deflectors from the sliding adjust-
ers.
aRemove the engine cooling system radiator.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aRefit the engine cooling system radiator.
aFit the air deflector to the sliding adjusters.
aRefit the radiator mounting cross member ( (see Ra-
diator mounting cross member: Removal - Refit-
ting) ).
aCouple the condenser to the engine cooling system
radiator.
aDetach the condenser from the front end panel up-
per cross member.
aUsing the (Mot. 1448), refit:
-the engine cooling system radiator degassing
hose,
-the engine cooling system radiator top hose,
-the engine cooling system radiator bottom hose.
aRefit:
-the engine cooling system radiator upper retaining
lug on the dehydrator reservoir side,
-the engine cooling system radiator upper left-hand
retaining lug.
aRefit the air deflector on the dehydrator reservoir
side.
II - FINAL OPERATION
aRefit the engine cooling fan assembly (see 19A,
Cooling, Engine cooling fan assembly: Removal
- Refitting, page 19A-51) .
aRefit:
-the computer mounting.-the computer wiring harness clip nut,
-the computer mounting bolts.
aConnect the injection computer connectors.
aRefit:
-the battery tray ( (see Battery tray: Removal - Re-
fitting) ),
-the battery ( (see Battery: Removal - Refitting) ),
-the front bumper ( (see Front bumper: Removal -
Refitting) ),
-the wheel arch liners (see MR 412 Bodywork,
55A, Exterior protection, Wheel arch liners: Re-
moval-Refitting),
-the front wheels ( (see Wheel: Removal - Refit-
ting) ).
aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) .

19A-14
COOLING
Cooling radiator: Removal - Refitting
K9K
19A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aDisconnect the battery (see ) (80A, Battery).
aDrain the refrigerant circuit using a refrigerant
charging station (see Refrigerant circuit: Drain-
ing - Filling) (62A, Air conditioning).
aRemove:
-the front wheels (see Wheel: Removal - Refitting)
(35A, Wheels and tyres),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (55A, Exterior protec-
tion),
-the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection).
aDisconnect the pressostat connector (1) .
aRemove the plastic cover (2) from the condenser.
aUnscrew the condenser connecting pipe unions (3) . Special tooling required
Mot. 1448Remote operation pliers for
hose clips .
Equipment required
refrigerant charging station
safety strap(s)
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
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.
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
The coolant helps to keep the engine running prop-
erly (heat exchange).
The system does not operate using pure water.AIR CONDITIONING
K9K, and 718, and AIR CONDITIONING
141214

19A-15
COOLING
Cooling radiator: Removal - Refitting
K9K
19A
aDisconnect the pressostat connector (4) .
aRemove the plastic cover (5) from the condenser.
aUnscrew the condenser connecting pipe unions (6) .aUncouple the connecting pipes from the condenser.
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
aUse the (Mot. 1448) to disconnect:
-the top hose (7) on the radiator,
-the degassing hose (8) on the radiator. K9K, and 740, and AIR CONDITIONING
121174
121312
WARNING
To prevent moisture from entering the system,
place plugs on the cold loop components which
are open to the air.
121431

19A-16
COOLING
Cooling radiator: Removal - Refitting
K9K
19A
aUnclip:
-the expansion bottle hose (9) from the engine cool-
ing fan assembly,
-the bottom hose (10) from the engine cooling fan
assembly,
-the wiring (11) from the engine cooling fan assem-
bly.
aDisconnect the engine cooling fan assembly con-
nectors (12) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
aAttach the radiator and the intercooler to the upper
cross member with a safety strap(s).
aRemove:
-the radiator mounting cross member (see Radiator
mounting cross member: Removal - Refitting)
(41A, Front lower structure),
-the « radiator - condenser - engine cooling fan »
assembly using the safety strap(s).
Stripping the cooling radiator
aRemove the plastic covers from the radiator.
aUnclip the engine cooling fan assembly.
REFITTING
I - REFITTING PREPARATION OPERATION
Rebuilding the cooling radiator
aClip the engine cooling fan assembly in place.
aRefit the plastic covers to the radiator.
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the « radiator - condenser - engine cooling fan »
assembly using a safety strap(s),
-the radiator mounting cross member (see Radiator
mounting cross member: Removal - Refitting)
(41A, Front lower structure).
aRemove the safety strap(s).
III - FINAL OPERATION
aConnect the engine cooling fan assembly connec-
tors.
aClip:
-the wiring to the engine cooling fan assembly,
-the bottom hose to the engine cooling fan assem-
bly,
-the expansion bottle hose to the engine cooling fan
assembly.
aUse the (Mot. 1448) to connect:
-the degassing hose on the radiator,
141211
120324

19A-17
COOLING
Cooling radiator: Removal - Refitting
K9K
19A
-the top hose on the radiator,
-the bottom hose on the radiator.
a
aLubricate the seals with the recommended air condi-
tioning oil to facilitate fitting.
aFit the condenser connecting pipes.
aFit the connecting pipe unions to the condenser.
aRefit the plastic cover on the condenser.
aConnect the pressostat connector.
aRefit:
-the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (55A, Exterior protec-
tion),
-the front wheels (see Wheel: Removal - Refitting)
(35A, Wheels and tyres).
aConnect the battery (see ) (80A, Battery).
aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) .aCheck that the system is operating correctly (see Air
conditioning: Check) (62A, Air conditioning).
aFill the refrigerant circuit using a refrigerant charg-
ing station (see Refrigerant circuit: Draining -
Filling) (62A, Air conditioning).
aCheck the refrigerant circuit (see Refrigerant cir-
cuit: Check) (62A, Air conditioning). AIR CONDITIONING
WARNING
Do not remove the blanking plugs from each
component until the last moment.
Also, do not remove the components from their
packaging until they are to be fitted to the vehi-
cle.
WARNING
To avoid any leaks, check that the seal and the
pipe surface are in good condition. The seal and
the surface must be clean and scratch free.
AIR CONDITIONING

19A-18
COOLING
Cooling radiator: Removal - Refitting
D4F or D7F, and STANDARD HEATING
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 from the cross
member (2) ,-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
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.
Stripping the cooling radiator
aRemove the radiator plastic deflectors.
aUnclip the engine cooling fan assembly.
REFITTING
I - REFITTING PREPARATIONS OPERATION
Rebuilding the cooling radiator
aClip the engine cooling fan assembly in place.
aRefit the radiator plastic deflectors.
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the « radiator / engine cooling fan assembly » unit, Special tooling required
Mot. 1448Remote operation pliers for
hose clips .
D4F, and 780
122833

19A-19
COOLING
Cooling radiator: Removal - Refitting
D4F or D7F, and STANDARD HEATING
19A
-the radiator mounting cross member (see Radiator
mounting cross member: Removal - Refitting)
(MR 412, 41A, Front lower structure).
III - FINAL OPERATION
aConnect the engine cooling fan assembly connec-
tors.
aClip:
-the wiring harness to the engine cooling fan as-
sembly,
-the bottom hose to the engine cooling fan assem-
bly.
aConnect:
-the radiator degassing hose,
-the radiator top hose.
aUsing the (Mot. 1448), fit:
-the radiator degassing hose clip,
-the radiator top hose clip.
aRefit:
-the air filter box air inlet pipe,
-the air filter unit air inlet pipe bolt on the cross
member.
aConnect the air filter unit air inlet pipe to the air filter
unit cover.
aRefit:
-the front bumper (see Front bumper: Removal -
Refitting) (MR 412, 55A, Exterior protection),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (MR 412, 55A, Exterior
protection),
-the front wheels (see Wheel: Removal - Refitting)
(MR 411, 35A, Wheels and tyres).
aConnect the battery (see ) (MR 411, 80A, Battery).
aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) . D4F, and 780

19A-20
COOLING
Cooling radiator: 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).
aDisconnect the battery (see Battery: Removal - Re-
fitting) (80A, Battery).
aDrain the air conditioning circuit using a refrigerant
charging station (see Refrigerant circuit: Drain-
ing - Filling) (62A, Air conditioning).
aRemove:
-the engine undertray bolts,
-the engine undertray,
-the front wheels (see Wheel: Removal - Refitting)
(35A, Wheels and tyres),
-the front wheel arch liners (see Front wheel arch
liner: Removal - Refitting) (55A, Exterior protec-
tion),
-the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection).
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 .
Equipment required
refrigerant charging station
safety strap(s)
Tightening torquesm
bolt of the dehydrator
reservoir - « expansion
valve connecting pipe » 8 N.m
compressor - con-
denser « connecting
pipe bolt » 8 N.m
air conditioning connect-
ing pipe bolts8 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
Prepare for the flow of fluid, and protect the sur-
rounding components.
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.