check engine RENAULT TWINGO RS 2009 2.G Engine And Peripherals Manual Online

14A-1
ANTIPOLLUTION
Oil vapour rebreathing circuit: Descriptions
K9K
14A
I - PRESENTATION OF THE CIRCUIT
Operating phase A
Operating phase BOperating phase A :
-with the engine at low load, the vacuum in the air pipe
at the air filter box outlet is not sufficient to activate the
membrane of the oil vapour rebreathing valve, fitted
with a weighted spring. Oil vapours are aspirated in
large quantities due to the vacuum in the air pipe at
the air filter box outlet.
Operating phase B :
-At engine medium and high load, the vacuum in the
pipe at the air filter box outlet attracts the membrane
of the oil vapour rebreathing valve. The hole allowing
the oil vapours to pass through in large quantities is
therefore closed and the oil vapours are aspirated in
low quantities via a calibrated jet.
II - CHECK
To ensure the antipollution system works properly, the
oil vapour rebreathing circuit must be kept clean and in
good condition.
20965
20965-1
(P) Atmospher ic pressure
(1) Rocker cover
(2) Oil vapour recirculation pipe
(3) Oil vapour recirculation valve
(4) Air filter box outlet air pipe
(5) Turbocharger

14A-3
ANTIPOLLUTION
Fuel vapour recirculation circuit: Check
D4F or D7F
14A
I - CHECKING THE OPERATION OF THE FUEL
VAPOUR ABSORBER BLEED
aCheck the condition of the pipes to the tank.aCheck the condition of the pipes to the tank.
II - FUEL VAPOUR ABSORBER BLEED
CONDITIONS
aThe fuel vapour absorber bleed solenoid valve is
controlled by the computer.
During « on board diagnostic » fault finding, fuel va-
pour absorber bleeding is not authorised.
The opening cyclic ratio of the fuel vapour absorber
bleed solenoid valve can be viewed on the Diagnos-
tic tool by reading parameter « Fuel vapour absorb-
er bleed solenoid valve OCR » .
The solenoid valve is closed for a value below 1.2%. Equipment required
Diagnostic tool
Note:
Incorrect operation of the system may result in
rough idle or engine stalling.
D4F, and 772 – D7F
97393-1
(1) Inlet distributor
(2) Fuel vapour absorber bleed
solenoid valve
(3) Petrol vapour absorber
(4) Tank
(5) Fresh air vent
D4F, and 780 or 782
121923
(1) Inlet distributor
(2) Fuel vapour absorber bleed
solenoid valve
(3) Petrol vapour absorber
(4) Tank
(6) Anti-retur n valve
(7) Turbocharger
(8) Air filter unit
(9) Air filter box air outlet pipe

14A-7
ANTIPOLLUTION
Fuel vapour absorber: Check
D4F or D7F
14A
I - CHECKING THE FUEL VAPOUR ABSORBER
aOn the fuel vapour absorber, plug the circuit coming
from the fuel tank.
aConnect the pressure gauge of the (Mot. 1311-01)
to the fuel vapour absorber breather outlet.
aWith the engine at idle speed, check that no vacuum
is present at the fuel vapour absorber breather out-
let. In the same way, the control value read by the
Diagnostic tool in parameter « fuel vapour absorb-
er bleed solenoid valve OCR » remains minimal X
less than or equal to 1.5%.
Is there a vacuum?
-Yes: With the ignition off, use a manual vacuum
and pressure pump to apply a vacuum of 500
mbar to the solenoid valve outlet. The vacuum
pressure should not vary by more than 10 mbar
over 30 seconds.
•Does the pressure vary?
-Yes: the solenoid valve is faulty, replace it (see
17B, Petrol injection, Petrol injection: List
and location of components, page 17B-1) .
-No: if it is an electrical problem, check the circuit
(see MR 413 Fault finding, 17B, Petrol injec-
tion, Fault finding - Interpretation of faults,
Canister bleed solenoid valve circuit).
-No: In bleeding condition (see « bleeding
condition » ), the vacuum should increase. In the
same time, the value of the parameter on the Diag-
nostic tool increases.
II - CHECKING THE FUEL VAPOUR ABSORBER-
TANK CONNECTION
aCheck this connection by connecting a manual vac-
uum and pressure pump to the pipe leading to the
fuel vapour absorber.Special tooling required
Mot. 1311-01Pressure gauges and petrol
pressure measur ing unions.
Equipment required
Diagnostic tool
man ual vacuum and pressure pump

14A-21
ANTIPOLLUTION
Exhaust gas recirculation rigid pipe: Removal - Refitting
K9K
14A
aRefit the exhaust gas recirculation rigid pipe with a
new clip.
aFit the rigid exhaust gas recirculation pipe bolts,
without tightening them.
aAdjust the rigid exhaust gas recirculation pipe in re-
lation to the exhaust gas recirculation assembly.
aTorque tighten the rigid exhaust gas recirculation
pipe clip (5 N.m).
aCheck that the rigid exhaust gas recirculation pipe is
not constrained.
aTorque tighten the bolts of the exhaust gas recir-
culation rigid pipe on the exhaust manifold (36
N.m).
III - FINAL OPERATION
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 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),
-the engine cover.
aConnect the battery (see ) (80A, Battery). K9K, and 740

16A-12
STARTING - CHARGING
Starter: Removal - Refitting
D4F or D7F
16A
aRemove:
-the starter bolts (6) ,
-the starter.
REFITTING
I - REFITTING PREPARATION OPERATION
aCheck that the starter centring dowel is in place.II - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the starter,
-the starter bolts.
aTighten:
-the starter lower bolt,
-to torque the starter upper bolt (44 N.m).
aFit the turbocharger discharge air pipe.
aConnect the turbocharger discharge air pipe onto
the intercooler air outlet pipe.
aTighten the turbocharger discharge air pipe clip.
aConnect the air pipe to the turbocharger discharge
solenoid valve.
aFit the starter electrical wiring.
aRefit the starter electrical wiring nuts.
aTighten the nut of the starter excitation terminal.
aTorque tighten the starter electrical supply nut
(8N.m) (7) .
III - FINAL OPERATION
aFit the engine wiring channel.
120411
120413
D4F, and 780 or 782
109734

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-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-52
COOLING
Engine cooling fan assembly: Removal - Refitting
C44, and K9K
19A
aPress on the engine cooling fan assembly locking
tabs (2) on the cooling radiator.
aWithdraw the engine cooling fan assembly from the
cooling radiator from above, while pressing on the
locking tabs.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aFit the engine cooling fan assembly to the cooling ra-
diator.
aClip the engine cooling fan assembly to the cooling
radiator.
aConnect the electrical connectors to the engine cool-
ing fan assembly.aClip:
-the engine cooling fan assembly wiring in place,
-the coolant hose at the bottom of the engine cool-
ing fan assembly.
II - FINAL OPERATION
aRefitting the front upper cross member (see MR 412
Bodywork, 42A, Upper front structure, Cross
member: Removal - Refitting).
aFit the « cable - bonnet catch » assembly.
aRefit the bonnet catch nuts.
aClip and move away from the front upper cross
member:
-the expansion bottle,
-the air filter inlet air pipe.
aRefit:
-the air filter inlet air pipe bolt onto the front upper
cross member,
-the expansion bottle bolt onto the front upper cross
member,
-the cooling radiator retaining lug bolt.
aTighten on the front upper cross member:
-the air filter inlet air pipe bolt onto the front upper
cross member,
-the expansion bottle bolt onto the front upper cross
member,
-the cooling radiator retaining lug bolt.
aRefit:
-the left-hand and right-hand headlights (see 80B,
Headlights, Halogen headlights: Removal - Re-
fitting),
-the front bumper ( (see Front bumper: Removal -
Refitting) ),
-the engine undertray,
-the engine undertray bolts.
aTighten the engine undertray bolts until contact is
made.
aConnect the battery ( (see Battery: Removal - Re-
fitting) ). STANDARD HEATING
120325
Note:
Be careful not to press too hard on the tabs to
avoid breaking them.
Note:
Check that the tabs lock the engine cooling fan
assembly on the cooling radiator correctly.