sensor RENAULT TWINGO 2009 2.G Engine And Peripherals Workshop Manual

19A-21
COOLING
Cooling radiator: Removal - Refitting
K4M
19A
aDisconnect the connector (1) from the air condition-
ing pressure sensor.
aRemove:
-the condenser protector (2) ,
-the « dehydrator reservoir - expansion valve » con-
necting pipe bolt (3) ,
-the « compressor - condenser » connecting pipe
bolt (4) .
aDisconnect:
-the « dehydrator reservoir - expansion valve » con-
necting pipe,
-the « compressor - condenser » connecting pipe.
aFit protective plugs onto the air conditioning pipe
unions.
aRemove using the (Mot. 1448) :
-the cooling radiator top hose clip,
-the cooling radiator degassing hose clip.
aDisconnect:
-the cooling radiator top hose,
-the cooling radiator degassing hose.aDisconnect:
-the engine cooling fan assembly resistor connector
(5) ,
-the engine cooling fan assembly connector (6) .
aUnclip:
-the engine cooling fan assembly wiring at (7) ,
-the cooling radiator top and bottom hose from the
engine cooling fan assembly.
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aAttach the « radiator - condenser- fan » assembly to
the upper cross member using a safety strap(s).
aRemove:
-the radiator mounting cross member (see Radiator
mounting cross member: Removal - Refitting)
(41A, Front lower structure),
-the « radiator - condenser- fan » assembly by loos-
ening the safety strap(s).
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19A-22
COOLING
Cooling radiator: Removal - Refitting
K4M
19A
On the workbench
aUnclip:
-the engine cooling fan assembly from the radiator
at (8) by pushing it upwards to detach the brackets
holding it,
-the cooling radiator protector (9) .
REFITTING
I - REFITTING PREPARATION OPERATION
aAlways replace the seals on the air conditioning
pipes.
On the workbench
aClip:
-the radiator protector,
-the engine cooling fan assembly to the cooling ra-
diator.
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the « radiator - condenser - fan » assembly,
-the radiator mounting cross member (see Radiator
mounting cross member: Removal - Refitting)
(41A, Front lower structure).III - FINAL OPERATION.
aClip:
-the cooling radiator top and bottom hose on the en-
gine cooling fan assembly,
-the engine cooling fan assembly wiring.
aConnect:
-the engine cooling fan assembly connector,
-the engine cooling fan assembly resistor connec-
tor.
aConnect:
-the cooling radiator top hose,
-the cooling radiator degassing hose.
aUsing the (Mot. 1448), fit:
-the cooling radiator top hose clip,
-the cooling radiator degassing hose clip.
aRefit the new seals on the air conditioning pipes.
aConnect:
-the « dehydrator reservoir - expansion valve » con-
necting pipe,
-the « compressor - condenser » connecting pipe.
aTighten to torque:
-the bolt of the dehydrator reservoir -
« expansion valve connecting pipe » (8 N.m),
-the compressor - condenser « connecting pipe
bolt » (8 N.m).
aTorque tighten the air conditioning connecting
pipe bolts (8 N.m).
aRefit the condenser protector.
aConnect the air conditioning pressure sensor con-
nector.
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 Battery: Removal - Refit-
ting) (80A, Battery).
132336

19A-27
COOLING
Coolant pump: 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 Battery: Removal - Re-
fitting) (80A, Battery).
aRemove:
-the windscreen wiper arms (see Windscreen wip-
er arm: Removal - Refitting) (85A, Wiping -
Washing),
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the scoop under the scuttle panel grille (see Scoop
under the scuttle panel grille: Removal - Refit-
ting) (56A, Exterior equipment),
-the front right-hand wheel (see Wheel: Removal -
Refitting) (35A, Wheels and tyres),
-the front right-hand wheel arch liner (see Front
wheel arch liner: Removal - Refitting) (55A, Ex-
terior protection),
-the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection),
-the halogen headlights (see Halogen headlight:
Removal - Refitting) (80B, Headlights),
-the front upper cross member (see Front upper
cross member: Removal - Refitting) (42A, Upper
front structure),-the lower engine tie-bar (see 19D, Engine mount-
ing, 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 accessories belt (see 11A, Top and front of
engine, Accessories belt: Removal - Refitting,
page 11A-3) ,
-the crankshaft accessories pulley (see 11A, Top
and front of engine, Crankshaft accessories
pulley: Removal - Refitting, page 11A-20) ,
-the camshaft position sensor (see 13B, Diesel in-
jection, Camshaft position sensor: Removal -
Refitting, page 13B-14) ,
-the timing belt (see 11A, Top and front of engine,
Timing belt: Removal - Refitting, page 11A-27) .
aRemove:
-the inner timing cover bolts (1) ,
-the inner timing cover.
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) . Tightening torquesm
coolant pump bolts10 N.m
WARNING
The coolant helps to keep the engine running prop-
erly (heat exchange).
The system does not operate using pure water.
WARNING
Drain with the engine warm.
Flush and refill with the engine cold or warm.
Never flush a hot engine (risk of major thermal
shock).
102266

19A-29
COOLING
Coolant pump: Removal - Refitting
K9K
19A
aTighten to torque and in order the coolant pump
bolts (10 N.m).
III - FINAL OPERATION
aRefit:
-the inner timing cover,
-the inner timing cover bolts,
-the timing belt (see 11A, Top and front of engine,
Timing belt: Removal - Refitting, page 11A-27) ,
-the camshaft position sensor (see 13B, Diesel in-
jection, Camshaft position sensor: Removal -
Refitting, page 13B-14) ,
-the crankshaft accessories pulley (see 11A, Top
and front of engine, Crankshaft accessories
pulley: Removal - Refitting, page 11A-20) ,
-the accessories belt (see 11A, Top and front of
engine, Accessories belt: Removal - Refitting,
page 11A-3) ,
-the right-hand suspended engine mounting (see
19D, Engine mounting, Right-hand suspended
engine mounting: Removal - Refitting, page
19D-13) ,
-the lower engine tie-bar (see 19D, Engine mount-
ing, Lower engine tie-bar: Removal - Refitting,
page 19D-18) ,
-the front upper cross member (see Front upper
cross member: Removal - Refitting) (42A, Upper
front structure),-the halogen headlights (see Halogen headlight:
Removal - Refitting) (80B, Headlights),
-the front bumper (see Front bumper: Removal -
Refitting) (55A, Exterior protection),
-the front right-hand wheel arch liner (see Front
wheel arch liner: Removal - Refitting) (55A, Ex-
terior protection),
-the front right-hand wheel (see Wheel: Removal -
Refitting) (35A, Wheels and tyres),
-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 Battery: Removal - Refit-
ting) (80A, Battery).
aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) .
102262

19A-44
COOLING
Water chamber: Removal - Refitting
K9K
19A
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
aUnclip the cooling hose of the coolant-oil heat ex-
changer at (11) .
aMove aside the cooling hose of the coolant-oil heat
exchanger.
aSeparate the clips of the water chamber cooling hos-
es (12) using the (Mot. 1448).
aDisconnect:
-the water chamber cooling hoses (12) ,
-the coolant temperature sensor connector.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove:
-the water chamber bolts (13) ,
-the water chamber,
-the water chamber seal.
aTurn the thermostat one quarter of a turn.
aRemove the thermostat from the water chamber.
REFITTING
I - REFITTING PREPARATION OPERATION
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consum-
ables - Products) to clean and degrease.
aparts always to be replaced: Cylinder head cool-
ant outlet unit seal
141218
121416121416
WARNING
Do not scrape the joint faces of the aluminium,
any damage caused to the joint face will result in
a risk of leaks.
WARNING
To ensure proper sealing, the gasket surfaces
must be clean, dry and not greasy (avoid any fin-
ger mar ks).

19A-46
COOLING
Water chamber: Removal - Refitting
D4F, and 780 or 782
19A
REMOVAL - REFITTING
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 411, 02A, Lifting equip-
ment).
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDetach the turbocharger cooling pipe from the cylin-
der head.
aRemove the water chamber hose clips using the
(Mot. 1448).
aDisconnect the water chamber hoses.
aRemove the pipe from the heater matrix under the
water chamber.aRemove:
-the water chamber bolts (1) ,
-the water chamber (2) ,
-the water chamber seal.
REFITTING
I - REFITTING PREPARATION OPERATION
aAlways replace the water chamber seal.
II - REFITTING OPERATION FOR PART
CONCERNED
aPosition the water chamber with a new seal.
aScrew on the water chamber bolts without tightening
them.
aTorque tighten the water chamber bolts (10 N.m).
aConnect the water chamber hoses.
aFit the heater matrix pipe under the water chamber.
aRefit the water chamber hose clips using the (Mot.
1448).
aClip the turbocharger cooling pipe onto the cylinder
head. Special tooling required
Mot. 1448Remote operation pliers for
hose clips .
Tightening torquesm
water chamber bolts10 N.m
Note:
Use a cloth to protect the TDC sensor to prevent
any coolant entering the opening on the gearbox.
113372
WARNING
The joint faces must be clean, dr y and free from
grease (avoid finger marks).

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-62
COOLING
Coolant pump inlet pipe: 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 ) (80A, Battery).
aRemove the engine undertray.
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
aRemove:
-the dipstick,
-the bolts (1) from the dipstick guide,
-the dipstick guide.aDisconnect:
-the pinking sensor connector (2) ,
-the oil pressure sensor connector (3) . Special tooling required
Mot. 1448Remote operation pliers for
hose clips .
Tightening torquesm
coolant pump inlet pipe
bolts25 N.m
132368
132374

19A-63
COOLING
Coolant pump inlet pipe: Removal - Refitting
K4M
19A
II - REMOVAL OPERATION
aRemove the clip (4) from each cooling hose using
the tool (Mot. 1448).
aDisconnect the cooling hoses from the coolant pump
inlet pipe.
aRemove:
-the bolts (5) from the coolant pump inlet pipe,
-the coolant pump inlet pipe.
REFITTING
I - REFITTING PREPARATION OPERATION
aparts always to be replaced: seal between cool-
ant pump inlet pipe and coolant pump.
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the seal housing in the cylinder block,
-the coolant pump inlet pipe seal housing if it is be-
ing reused.
II - REFITTING OPERATION
aRefit the coolant pump inlet pipe fitted with a new
seal.aTorque tighten in order the coolant pump inlet pipe
bolts (25 N.m).
aConnect the cooling hoses to the coolant pump inlet
pipe.
aFit each cooling hose clip using the tool (Mot. 1448).
III - FINAL OPERATION
aConnect:
-the oil pressure sensor connector,
-the pinking sensor connector.
aRefit:
-dipstick guide ,
-the dipstick.
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 undertray.
131781
131781