2009 RENAULT TWINGO cooling

14A-14
ANTIPOLLUTION
Exhaust gas cooler: Removal - Refitting
K9K
14A
aRefit the bolts (4) of the exhaust gas recirculation
rigid pipe on the exhaust manifold.
aTorque tighten the exhaust gas recirculation rigid
pipe bolts (36 N.m).
aRefit the rigid exhaust gas recirculation pipe (see
14A, Antipollution, Exhaust gas recirculation rig-
id pipe: Removal - Refitting, page 14A-19) .
aRefit:
-the catalytic converter (see 19B, Exhaust, Cata-
lytic converter: Removal - Refitting, page 19B-
12) ,
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,
-the EGR solenoid valve (see 14A, Antipollution,
Exhaust gas recirculation solenoid valve: Re-
moval - Refitting, page 14A-10) ,
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
aTop up the coolant level.
aConnect the battery (see ) (80A, Battery).
aBleed the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
aRefit the engine cover. K9K, and 718
141224
K9K, and 740

14A-18
ANTIPOLLUTION
Exhaust gas recirculation assembly: Removal - Refitting
K9K
14A
aRefit:
-new seals on the coolant circulation cover,
-the coolant circulation cover on the exhaust gas
cooler.
aTorque tighten the coolant circulation cover bolts
on the exhaust gas cooler (12 N.m).
aRemove the tool (Ms. 583) from the coolant inlet and
outlet hoses of the exhaust gas cooler.
III - FINAL OPERATION
aFit the intercooler air outlet pipe at the damper valve
end.
aConnect the intercooler air outlet pipe on the side of
the damper valve.
aTorque tighten the intercooler air outlet pipe clip
at the damper valve end (5.5 N.m).
aRefit the intercooler air outlet pipe nut on the lifting
eye.
aConnect the turbocharging pressure regulator vacu-
um pipe.
aClip:
-the turbocharging pressure regulator vacuum pipe,
-the vacuum pipe from the brake servo.
aConnect the brake servo vacuum pipe.
aFit the intercooler air inlet pipe at the turbocharger
end.
aRefit the intercooler air inlet pipe nut at the turbo-
charger end on the lifting eye.
aConnect the intercooler air inlet pipe at the turbo-
charger end.
aClip on the intercooler air inlet pipe clip at the turbo-
charger end.
aRefit the air outlet pipe onto the air filter unit.
aTighten the air filter unit air outlet pipe clip on the tur-
bocharger.
aConnect the oil vapour rebreathing pipe.
aRefit:
-the exhaust gas recirculation rigid pipe (see 14A,
Antipollution, Exhaust gas recirculation rigid
pipe: Removal - Refitting, page 14A-19) ,-the catalytic converter (see 19B, Exhaust, Cata-
lytic converter: Removal - Refitting, page 19B-
12) ,
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,
-the EGR solenoid valve (see 14A, Antipollution,
Exhaust gas recirculation solenoid valve: Re-
moval - Refitting, page 14A-10) ,
-the air filter unit (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment).
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
aConnect the battery (see ) (80A, Battery).
aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) .
aRefit the engine cover. K9K, and 718

19A-1
COOLING
Engine cooling system: Specifications
D4F or D7F or K4M or K9K
19A
Vehicles in the current range have cooling systems
with the following basic specifications:
-hermetically-sealed pressurised circuit (with expan-
sion bottle valve),
-circuit using only type « D » fluid,
-passenger compartment heating system equipped
with a « heater matrix » type radiator located under
the dashboard which helps to cool the engine.
Coolant quantities
Special notes:
-protection down to - 25˚C ±± ± ±
2 for cold and temperate
countries,
-protection down to - 40˚C ±± ± ±
2 for "extreme cold" coun-
tries.
Thermostat opening temperaturesEngine Quantity
(litres)Grade
D7F 800 5.5
Only use coolant
GLACEOL RX
(type D) D4F 772 5.5
K9K 740 5.7
D4F 780 5.7
D4F 782 5.7
K4M 854 5.7
Engine Star t o f
opening (˚C)Fully open (˚C)
D7F89 99
D4F89 99 ±± ± ±
2
K9K83 ±± ± ±
395
K4M89 101

19A-2
COOLING
Engine cooling system: Check
19A
Expansion bottle cap valve rating:
I - CHECKING THE COOLING SYSTEM USING THE
TOOL (MOT. 1700)
a1 - Checking the expansion bottle cap valve
aUse the cooling system filling and diagnostic tool
(Mot. 1700). Consult the user's manual for this tool
(see Cooling system filling and diagnostic tool:
Use) (Technical Note 3857A, 19A, Cooling).
2 - Checking the sealing of the cooling circuit
aUse the cooling system filling and diagnostic tool
(Mot. 1700). Consult the user's manual for this tool
(see Cooling system filling and diagnostic tool:
Use) (Technical Note 3857A, 19A, Cooling).
II - CHECKING THE COOLING SYSTEM USING THE
TOOL (MS. 554-07)
a Special tooling required
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
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).
Note:
There are two procedures for checking the cooling
system:
-the procedure using the (Mot. 1700)
-the procedure using the (Ms. 554-07)
Expansion bottle cap with
...Valve rating
... a brown circle1.2 bar
... a yellow marking1.4 bar
... a white marking1.6 bar
... a grey marking1.8 bar
WARNING
If the coolant is leaking from the expansion bottle
cap, replace the valve.
107138
WARNING
If the coolant is leaking from the expansion bottle
cap, replace the valve.

19A-3
COOLING
Engine cooling system: Check
19A
1 - Checking the expansion bottle cap valve
aFit onto the tester (Ms. 554-07), the adapter (Ms.
554-06).
aFit the expansion bottle cap to the adapter (Ms. 554-
06).
aPump with the (Ms. 554-07), the pressure should
stabilise at the expansion bottle cap valve rating with
a test tolerance of ± 0.1 bar.
2 - Checking the sealing of the cooling circuit
aReplace the expansion bottle cap with the adapter
(Ms. 554-01).
aConnect on the adapter (Ms. 554-01) the tool (Ms.
554-07).
aPump with the (Ms. 554-07) to put the cooling circuit
under pressure.
aStop pumping at 0.1 bar below the valve rating for
the expansion bottle cap valve.aGradually unscrew the union of the (Ms. 554-07) to
decompress the cooling system then remove the
adapter (Ms. 554-01) and refit the expansion bottle
cap.
97871
Note:
The pressure should not drop; if it does, look for
the leak.
Note:
The pressure should not drop; if it does, look for
the leak.

19A-4
COOLING
Engine cooling circuit: List and location of components
K4M
19A
132947
(1) Engine
(2) Cooling radiator
(3) Heater matrix
(4) Expansion bottle
(5) Water pump
(6) Thermostat
(7) Bleed screws
(8) Chok e

19A-5
COOLING
Engine cooling system: Operating diagram
D4F, and 772 – D7F
19A
122038
(1) Engine
(2) Radiator
(3) Heater matrix
(4) Expansion bottle
(5) Water pump
(6) Thermostat
(7) Bleed screws
(8) 10 mm restr iction
Note:
The expansion bottle degassing valve rating is 1.4
bar.

19A-6
COOLING
Engine cooling system: Operating diagram
K9K
19A
The expansion bottle valve rating is 1.4 bar.
121816
(1) Engine
(2) Radiator
(3) Expansion bottle
(4) Heater matrix
(5) Cooled EGR
(6) Water pump
(7) Water chamber with integrated
ther mostat
(8) Bleed screw on the water cham-
ber
(9) Bleed screw on the heater
matr ix hose