engine coolant RENAULT TWINGO 2009 2.G Engine And Peripherals Service Manual

19A-7
COOLING
Engine cooling system: Operating diagram
D4F, and 780 or 782
19A
122824
(1) Engine
(2) Radiator
(3) Heater matrix
(4) Expansion bottle
(5) Coolant pump
(6) Thermostat
(7) Bleed screws
(8) 10 mm restr iction
(9) Turbocharger
Note:
The rating of the expansion bottle degassing valve
is 1.4 bar.

19A-9
COOLING
Cooling system: Draining - Refilling
D4F or D7F or K4M or K9K
19A
a
I - DRAINING
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the expansion bottle cap.aRemove the engine undertray.
aPosition the coolant recovery tray under the vehi-
cle.
aRemove the cooling radiator bottom hose clip using
the tool (Mot. 1202-01) or (Mot. 1202-02) or (Mot.
1448).
aOpen the cooling system by removing the cooling ra-
diator bottom hose using the tool (Car. 1363).
aUse a compressed air nozzle to blow air into the
system through the expansion bottle opening to re-
move as much coolant as possible.
II - CLEANING
aFill the cooling system with water through the expan-
sion bottle.
aLet the water run until the water collected by the
cooling radiator bottom hose becomes clear.
aUse a compressed air nozzle to blow air into the
circuit through the expansion bottle opening to re-
move as much water as possible.
aRefit the hose which was removed.
III - FILLING
a
1 - Filling procedure with the tool (Mot. 1700)
aFill the cooling system with engine coolant recom-
mended by the manufacturer (see Vehicle: Parts
and consumables for the repair) (04B, Consum-
ables - Products) using the tool (Mot. 1700).
For the use of this tool (see Cooling system filling
and diagnostic tool: Use) (NT 3857A, 19A, Cool-
ing). Special tooling required
Mot. 1202-01Clip pliers for hose clips
(large size).
Mot. 1202-02Clip pliers for hose clips
(small size)
Mot. 1448Remote operation pliers for
hose clips .
Car. 1363Set of tr im removal levers.
Mot. 1700Fault finding and filling -
bleeding the cooling circuit.
Ms. 554-07Instr ument for testing the
cooling circuit and the expan-
sion bottle valve. Contains
caps 554-01, 554-04, 554-06
Equipment required
coolant recovery tray
compressed air nozzle
pedal press
IMPORTANT
When working in the engine compartment, take
care as the radiator fan(s) may start up unex-
pectedly (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 dr ain the cooling system,
-do not open the bleed screw(s).
WARNING
Before the operation, protect the electrical acces-
sories to prevent any risk of short circuiting and
protect the belts to avoid damaging them.
K4M
Note:
There are two procedures for filling the cooling
system:
-the method using the (Mot. 1700) tool is recom-
mended by Renault. It saves a considerable
amount of time because it does not require the
cooling system bleed screws to be opened,
-the procedure without a special tool.

19A-10
COOLING
Cooling system: Draining - Refilling
D4F or D7F or K4M or K9K
19A
2 - Filling method without special tools
a
aRemove the air filter unit (see 12A, Fuel mixture,
Air filter unit: Removal - Refitting, page 12A-13) .
aRemove the front engine cover.
aOpen the bleed screws (1) and (2) .
aFill the cooling system with engine coolant recom-
mended by the manufacturer (see Vehicle: Parts
and consumables for the repair) (04B, Consum-
ables - Products) via the expansion bottle until it
overflows.
aClose all the bleed screws as soon as the coolant
starts to flow in a continuous stream.aRefit the air filter unit (see 12A, Fuel mixture, Air fil-
ter unit: Removal - Refitting, page 12A-13) .
aRefit the engine cover.
aPressurise the system using the (Ms. 554-07) to
check that there are no leaks (see 19A, Cooling,
Engine cooling system: Check, page 19A-2) .
aRefit the expansion bottle cap.
aClean any surfaces soiled by the coolant.
IV - BLEEDING
a
aStart the engine.
aMaintain the engine speed at 2500 rpm using the
pedal press for 5 min.
aStabilise the engine speed at 2000 rpm until the fan
assembly has been activated twice.
aMaintain the engine speed at 2500 rpm, using the
pedal press for 5 minutes.
aStabilise the engine speed at 2000 rpm until the fan
assembly is activated.
aNote the coolant level in the expansion bottle after
this first activation.
aAccelerate at a minimum of 4000 rpm for several
seconds, until the level of coolant fluid in the expan-
sion bottle drops. WARNING
It is essential to open all of the bleed screws to
remove as much as air as possible in the cooling
system. Failure to perform this procedure may
prevent the cooling system from filling properly
and may damage the engine.
D4F, and 772 – K4M
K9K
120526
D4F, and 772 – K4M
K9K
WARNING
Do not open the bleed screw whilst the engine is
running; this would damage the engine.
D4F, and 772 – D7F, and 800
D4F, and 780 or 782

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-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-23
COOLING
Cooling radiator: Removal - Refitting
K4M
19A
aPerform the following operations:
-fill the air conditioning circuit using a refrigerant
charging station (see Refrigerant circuit: Drain-
ing - Filling) (62A, Air conditioning),
-fill and bleed the coolant circuit (see 19A, Cooling,
Cooling system: Draining - Refilling, page 19A-
9) .
aRefit the engine undertray.

19A-24
COOLING
Coolant pump: Removal - Refitting
D4F or D7F
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 right-hand wheel (see Wheel: Removal -
Refitting) (MR 411, 35A, Wheels and tyres),
-the front wheel arch liner (see Front wheel arch
liner: Removal - Refitting) (MR 412, 55A, Exterior
protection),
-the accessories belt (see 11A, Top and front of
engine, Accessories belt: Removal - Refitting,
page 11A-3) ,
-the engine tie-bar (see 19D, Engine mounting,
Lower engine tie-bar: Removal - Refitting, page
19D-18) ,
-the right-hand suspended engine mounting (see
19D, Engine mounting, Right-hand suspended
engine mounting: Removal - Refitting, page
19D-13) ,
-the timing belt (see 11A, Top and front of engine,
Timing belt: Removal - Refitting, page 11A-27) .
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
aRemove the rigid coolant pipe bolt on the multifunc-
tion support.
aMove the rigid water pump pipe aside.aRemove the coolant pump inlet pipe (see 19A,
Cooling, Coolant pump inlet pipe: Removal - Re-
fitting, page 19A-58) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove:
-the coolant pump bolts,
-the coolant pump,
-the coolant pump seal.
aRemove the coolant pump bolts.
aMove the coolant pump 5 mm away from its bearing
face.
aPivot the coolant pump casing in the direction of the
arrows, (1) and then (2) .
aRemove:
-the coolant pump, Tightening torquesm
coolant pump bolts10 N.m
AIR CONDITIONING
D4F, and 780 or 782
STANDARD HEATING
AIR CONDITIONING
120515

19A-25
COOLING
Coolant pump: Removal - Refitting
D4F or D7F
19A
-the coolant pump seal.
REFITTING
I - REFITTING PREPARATION OPERATION
aApply SUPER CLEANER FOR JOINT FACES (see
Vehicle: Parts and consumables for the repair)
(MR 411, 04B, Consumables - Products) to the ar-
eas to be cleaned.
aLeave for approximately ten minutes.
aRemove the residue using a wooden spatula.
aComplete the cleaning of the parts using an abrasive
pad.
aDegrease the joint faces with SURFACE CLEANER
(see Vehicle: Parts and consumables for the re-
pair) (MR 411, 04B, Consumables - Products).
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the water pump fitted with a new seal,
-the coolant pump bolts.aTighten to torque and in order the coolant pump
bolts (10 N.m).
aRefit the coolant pump inlet pipe (see 19A, Cooling,
Coolant pump inlet pipe: Removal - Refitting,
page 19A-58) .
III - FINAL OPERATION
aFit the rigid water pump pipe with a new seal.
aRefit the rigid coolant pipe bolt on the multifunction
support.
aRefit:
-the timing belt (see 11A, Top and front of engine,
Timing belt: Removal - Refitting, page 11A-27) ,
-the right-hand suspended engine mounting (see
19D, Engine mounting, Right-hand suspended
engine mounting: Removal - Refitting, page
19D-13) ,
-the engine tie-bar (see 19D, Engine mounting,
Lower engine tie-bar: Removal - Refitting, page
19D-18) , WARNING
Do not scrape the joint faces of the aluminium,
any damage caused to the joint face will result in
a risk of leaks.
IMPORTANT
Wear latex gloves during the operation.
WARNING
The joint faces must be clean, dr y and free from
grease (avoid finger marks).
120516
D4F, and 780 or 782
AIR CONDITIONING

19A-26
COOLING
Coolant pump: Removal - Refitting
D4F or D7F
19A
-the accessories belt (see 11A, Top and front of
engine, Accessories belt: Removal - Refitting,
page 11A-3) ,
-the front wheel arch liner (see Front wheel arch
liner: Removal - Refitting) (MR 412, 55A, Exterior
protection),
-the front right-hand wheel (see Wheel: Removal -
Refitting) (MR 411, 35A, Wheels and tyres).
aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) .
aConnect the battery (see ) (MR 411, 80A, Battery).