coolant temperature RENAULT TWINGO 2009 2.G Engine And Peripherals Owner's Manual

19A-68
COOLING
Coolant temperature sensor: Removal - Refitting
D4F, and 780
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).Tightening torquesm
coolant temperature
sensor23 Nm

19A-69
COOLING
Coolant temperature sensor: Removal - Refitting
D4F, and 780
19A
a
Remove the turbocharger air outlet pipe bolt (3) from
the throttle valve.
aDetach the turbocharger air outlet pipe from the tur-
bocharger in the direction of the arrow (4) .aDisconnect the turbocharger air outlet pipe from the
turbocharger.
aRemove the throttle valve (see 12A, Fuel mixture,
Throttle valve: Removal - Refitting, page 12A-20)
.
aDrain the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .
II - REMOVAL OPERATION FOR PART
CONCERNED
aDisconnect the coolant temperature sensor connec-
tor (6) .
aRemove the coolant temperature sensor.
REFITTING
I - REFITTING PREPARATIONS OPERATION
aAlways replace the coolant temperature sensor O-
ring.
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the new coolant temperature sensor O-ring,
122833
122673
Note:
If the tightening clip (1) is removed from the tur-
bocharger air outlet pipe, the flexible rubber pipe
(2) and tightening clip (1) must be replaced.
Note:
If the clip (5) is removed from the heat resistant
protector, the latter must be replaced.
114326

19A-70
COOLING
Coolant temperature sensor: Removal - Refitting
D4F, and 780
19A
-the coolant temperature sensor.
aTorque tighten the coolant temperature sensor
(23 Nm).
aConnect the coolant temperature sensor connector.
III - FINAL OPERATION
aRefit the throttle valve (see 12A, Fuel mixture,
Throttle valve: Removal - Refitting, page 12A-20)
.
aPush the turbocharger air outlet pipe clip in the di-
rection of the arrow (7) .
aConnect the turbocharger air outlet pipe onto the tur-
bocharger.
aRefit the turbocharger air outlet pipe bolt on the
throttle valve.
aFill and bleed the cooling system (see 19A, Cool-
ing, Cooling system: Draining - Refilling, page
19A-9) .
122666

19A-71
COOLING
Coolant temperature sensor: Removal - Refitting
K4M
19A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aRemove the air filter unit (see 12A, Fuel mixture,
Air filter unit: Removal - Refitting, page 12A-13) .II - REMOVAL OPERATION
aDisconnect the coolant temperature sensor connec-
tor (1) .
aRemove:
-the coolant temperature sensor clip (2) ,
-the coolant temperature sensor,
-the coolant temperature sensor seal.
REFITTING
I - REFITTING PREPARATION OPERATION
aparts always to be replaced: coolant tempera-
ture sensor seal.
aUse SURFACE CLEANER (see Vehicle: Parts
and consumables for the repair) (04B, Consuma-
bles - Products) to clean and degrease:
-the seal housing in the water chamber,
-the seal mating face of the coolant temperature
sensor if reused.
II - REFITTING OPERATION
aRefit:
-the coolant temperature sensor fitted with a new
seal,
-the coolant temperature sensor clip.
aConnect the coolant temperature sensor connector. IMPORTANT
The circuits are designed to be pressurised, so be
careful at high temperatures (risk of serious burns).
Do not remove the cap from the expansion bottle
while the engine is hot.
Take care when carrying out a repair under the bon-
net, as the radiator fan(s) may start to operate with-
out warning.
Do not open the bleed screw(s) with the engine run-
ning.
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
The coolant helps to keep the engine running prop-
erly (heat exchange).
The system does not operate using pure water.
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19A-72
COOLING
Coolant temperature sensor: Removal - Refitting
K4M
19A
III - FINAL OPERATION
aRefit the air filter unit (see 12A, Fuel mixture, Air fil-
ter unit: Removal - Refitting, page 12A-13) .
aPerform the following operations:
-top up the coolant level,
-bleed the cooling system (see 19A, Cooling, Cool-
ing system: Draining - Refilling, page 19A-9) .