2009 RENAULT TWINGO RS engine

12A-1
FUEL MIXTURE
Air inlet: Description
C44, and K9K, and 740
12A
120044
(1) Air filter box air inlet pipe
(2) Air filter unit
(3) Air flowmeter
(4) Air filter box air outlet pipe
(5) Turbocharger
(6) Turbocharger air outlet pipe
(7) Metal air inlet tube
(8) Exhaust gas recirculation
assembly
(A) Air inlet in the air inlet circuit
(B) Air inlet in the engine
(C) Air outlet towards the exhaust
system

12A-7
FUEL MIXTURE
Air filter: Removal - Refitting
C44, and K9K
12A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aRemove:
-the engine cover,
-the air filter box (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove the bolts (1) of the air filter box cover (2) .
aRaise the cover of the air filter box to remove it from
its mountings.
aMove aside the air filter cover.
aRemove the air filter and discard it.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aRefit a new air filter.
aRefit:
-the air filter box cover,-the air filter box cover bolts
II - FINAL OPERATION.
aRefit:
-the air filter box (see 12A, Fuel mixture, Air filter
unit: Removal - Refitting, page 12A-13) ,
-the engine cover.
120043
Note:
Ensure that the air filter is correctly positioned in
its box.

12A-9
FUEL MIXTURE
Air filter: Removal - Refitting
D4F, and 780 or 782
12A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aRemove the bolts (1) from the air filter unit cover on
the air filter unit.
aMove the air filter unit air inlet pipe and the air filter
unit cover to one side.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove the air filter unit in the direction of the ar-
rows (2) .
REFITTING
I - REFITTING PREPARATION OPERATION
aClean the air filter unit.
II - REFITTING OPERATION FOR PART
CONCERNED
aCorrectly fit the air filter into the air filter unit cover.
III - FINAL OPERATION
aPosition the air filter unit air inlet pipe and the air filter
unit cover on the air filter unit.
aRefit the air filter unit cover bolts.
aTighten the air filter unit cover bolts.
122395
122402
WARNING
If the air fi lter is fitted incorrectly in the air filter
unit, unfiltered air may enter the engine.

12A-10
FUEL MIXTURE
Air filter: Removal - Refitting
K4M
12A
REMOVAL
REMOVAL OPERATION
aRemove the bolts (1) from the air filter unit cover.
aRaise the air filter unit cover.
aRemove the air filter.
REFITTING
I - REFITTING PREPARATION OPERATION
aClean the air filter housing.
II - REFITTING OPERATION
aRefit:
-the air filter,
-the air filter unit cover.
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132381
WARNING
If the air fi lter is fitted incorrectly in the air filter
unit, unfiltered air may enter the engine.

12A-12
FUEL MIXTURE
Air filter: Removal - Refitting
K9K, and 718 or 740
12A
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit the air filter in the air filter unit cover.
aFit the air filter unit cover.
III - FINAL OPERATION
aRefit the air filter unit (see 12A, Fuel mixture, Air fil-
ter unit: Removal - Refitting, page 12A-13) . WARNING
If the air filter is fitted incorrectly in the air filter
unit, unfiltered air may enter the engine and
cause the engine to malfunction.

12A-14
FUEL MIXTURE
Air filter unit: Removal - Refitting
K9K
12A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aRemove the front engine cover.
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aUnclip:
-the air filter air inlet pipe (1) on the vehicle,
-the air filter air inlet pipe from the air filter unit.
aRemove the air filter air inlet pipe.aUnclip the air filter box harnesses.
aDisconnect the connectors:
-from the air inlet temperature sensor downstream
of the turbocharger (3) ,
-the turbocharger pressure sensor (4) ,
-from the air inlet temperature sensor upstream of
the turbocharger (5) ,
-from the EGR (6) .
aRemove the bolt (7) from the turbocharger pressure
sensor on the air filter box.
aMove aside the turbocharger pressure sensor.
aLoosen the clip at the inlet of the air filter outlet air
pipe.
aUnclip the air filter outlet air pipe from the air filter
box.
aRaise the cover of the air filter box to remove it from
its mountings.
aSlide the air filter box towards the timing end.
aRemove the air filter box.
120038
Note:
Make sure you do not break the pins (2) .
120039

12A-15
FUEL MIXTURE
Air filter unit: Removal - Refitting
K9K
12A
REMOVAL
I - REFITTING OPERATION FOR PART
CONCERNED
aSlide the air filter box towards the gearbox side.
aCheck the condition of the air filter box mountings,
replace them if necessary.
aClip:
-the air filter box onto its mountings,
-the air filter air outlet pipe to the air filter.
aTighten the air pipe clip on the air filter outlet.
aRefit the air filter air inlet pipe on the vehicle.
aPosition the turbocharger pressure sensor on the air
filter box.
aRefit the bolt mounting the turbocharger pressure
sensor on the air filter box.
aConnect the connectors:
-of the inlet air temperature sensor,
-of the turbocharging pressure sensor,
-of the flow sensor,
-of the EGR.
aClip on the air filter box harnesses.
aClip the air filter inlet air pipe to the air filter box.
II - FINAL OPERATION.
aRefit the engine cover.Note:
Ensure that the centring lug of the box is fully
inserted in the cylinder head.

12A-19
FUEL MIXTURE
Air resonator: Removal - Refitting
K4M
12A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove:
-the engine undertray,
-the front left-hand wheel (see Wheel: Removal -
Refitting) (35A, Wheels and tyres),
-the front left-hand wheel arch liner (see Front
wheel arch liner: Removal - Refitting) (55A, Ex-
terior protection).
II - REMOVAL OPERATION
aRemove the air resonator mounting bolts (1) .aDisconnect the air resonator pipe (2) .
aRemove the air resonator .
REFITTING
I - REFITTING OPERATION
aRefit the air resonator.
aConnect the air resonator pipe.
II - FINAL OPERATION
aRefit:
-the front left-hand wheel arch liner (see Front
wheel arch liner: Removal - Refitting) (55A, Ex-
terior protection),
-the front left-hand wheel (see Wheel: Removal -
Refitting) (35A, Wheels and tyres),
-the engine undertray.
131764
131765