brake fluid RENAULT TWINGO 2009 2.G Chasiss Owner's Manual

37A-10
MECHANICAL COMPONENT CONTROLS
Master cylinder: Removal - Refitting
RIGHT-HAND DRIVE
37A
aRemove the blanking plugs from the brake fluid res-
ervoir and the clutch master cylinder supply pipe.
aRefit the clutch master cylinder supply pipe.
III - FINAL OPERATION.
aRefit:
-the timing cover,
-the bulkhead heat-resistant protectors.
aRefit the bulkhead heat-resistant protector.
aClip onto the support:
-the ABS wiring,
-the non-return valve.
aRefit the support of the non-return valve and the
ABS wiring.
aRefit:
-the fuel vapour recirculation solenoid valve sup-
port,
-the fuel vapour recirculation solenoid valve,
-the petrol vapour recirculation solenoid valve con-
nector,
-the fuel vapour recirculation solenoid valve pipes.
aRefit:
-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).aFill up the secondary brake fluid reservoir.
aBleed the brake circuit (see 30A, General informa-
tion, Braking circuit: Bleed, page 30A-4) . JH3 or JR5
K4M
D4F, and 780
D4F or D7F or K4M

37A-54
MECHANICAL COMPONENT CONTROLS
Clutch circuit: Bleed
JH3 or JR5
37A
Bleed in the event of:
-dead travel,
-pedal at mid-travel,
-pedal to the floor,
-poor gear changing.
I - PRECAUTIONS DURING REPAIR
Risks relating to contamination.
aThe hydraulic clutch system is very sensitive to con-
tamination. The risks caused by contamination are:
-impossible to change gears,
-damage to or destruction of the clutch system,
-leaks on the hydraulic circuit.
All the operations on the hydraulic clutch circuit sys-
tem must be carried out under excellent cleanliness
conditions. This ensures that no impurities enter the
hydraulic circuit during the operation.
The cleanliness principles apply to all components
of the hydraulic clutch circuit.
Items causing contamination are:
-metal or plastic swarf,
-fibres:
•cardboard,
•brushes,
•paper,
•clothing,
•cloth,
•dust and particles in the air,
•etc.
Cleaning cloths.
aUse lint-free cleaning cloths (see Products recom-
mended for the repair) (04B, Consumables - Prod-
ucts).
Each cloth must only be used once.There are two types of equipment used to bleed the
clutch circuit:
aARC50 via the brake fluid reservoir.
aSyringe via the bleed hole located on the clutch
slave cylinder.
There are two procedures used to bleed the clutch
circuit:
aIf no parts of the hydraulic clutch circuit are remo-
ved:
-Carry out the bleed operation using the ARC50 via
the brake fluid reservoir or using a new syringe via
the bleed hole located on the clutch slave cylinder.
aIf no parts of the hydraulic clutch circuit are remo-
ved:
-Only carry out the bleed operation using a new sy-
ringe by injecting the brake fluid via the bleed hole
on the clutch slave cylinder.
Consumables required for the repair:
aBleed the clutch circuit using approved (see Vehi-
cle: Parts and consumables for the repair) brake
fluid (04B, consumables - products).
II - PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the engine undertray. Equipment required
brake circuit bleeding device
hydraulic circuit bleed syringe
Note:
-Even the tiniest air bubble in the circuit can
cause faulty operation (pedal failing to return
properly, crunching sound when changing gear,
etc.).
-Incorrect bleeding can lead to incorrect detec-
tion of faults and unnecessary part replace-
ments.

37A-56
MECHANICAL COMPONENT CONTROLS
Clutch circuit: Bleed
JH3 or JR5
37A
Bleed screw with two clips.
aTo open the bleed screw, lower the clip (6) and lift
the clip (7) while pulling by one notch.
III - BLEED PROCEDURE IF NO PARTS OF THE
HYDRAULIC CIRCUIT ARE REMOVED
1 - Bleed using the ARC50.
aKeep the clutch pedal in the upper position using a
strap attached to the steering wheel to ensure conti-
nuity of the hydraulic circuit during the bleed opera-
tion.aConnect the brake circuit bleeding device (after
having received Renault approval) to the master cyl-
inder reservoir (see the instructions for the equip-
ment).
aRemove the bleed plug from the clutch slave cylin-
der.
aConnect a transparent pipe to the bleed hole running
to an empty container placed under the bleed hole.
aOpen the bleed screw.
aOpen the circuit between the bleeding device and
the brake fluid reservoir.
aLet the brake fluid run until all air bubbles have been
released.
aStop the bleeding device to dump the pressure in the
clutch circuit.
aClose the bleed screw.
aRemove the transparent pipe from the bleed hole.
aRefit the bleed plug.
aTop up the brake fluid level in the master cylinder
reservoir after disconnecting the bleed device.
aDisengage and engage the clutch quickly around
twenty times.
aCheck that the clutch system is operating correctly.
aRepeat the bleed operation if necessary.
aCheck the adjustment of the switch. (see 37A, Me-
chanical component controls, Clutch pedal
switch: Removal - Refitting, page 37A-52) (37A,
mechanical control elements).
113732
Note:
Ta k e c are not to disrupt the adjustment of the
clutch start of travel switch.

37A-57
MECHANICAL COMPONENT CONTROLS
Clutch circuit: Bleed
JH3 or JR5
37A
2 - Bleed using a new syringe.
aKeep the clutch pedal in the upper position using a
strap attached to the steering wheel to ensure conti-
nuity of the hydraulic circuit during the bleed opera-
tion.
aRemove the bleed plug from the clutch slave cylin-
der.
aConnect a transparent pipe of sufficient length to the
bleed hole (at least thirty centimetres) in order to
place it at the same height as the reservoir.
aOpen the bleed screw.
aFill the brake fluid master cylinder reservoir until
brake fluid flows out of the bleed screw.
aConnect a new hydraulic circuit bleed syringe
filled with a useful volume of 60 ml of approved
brake fluid to the end of the transparent pipe.
aSlowly inject the entire contents of the syringe into
the hydraulic clutch circuit without injecting any of
the air from the top section of the syringe.
aClose the bleed screw.
aRemove the transparent pipe from the bleed hole.
aRefit the bleed plug.
aTop up the brake fluid level in the master cylinder
reservoir.
aDisengage and engage the clutch quickly around
twenty times.
aCheck that the clutch system is operating correctly.
aRepeat the bleed operation if necessary.
aCheck the adjustment of the switch. (see 37A, Me-
chanical component controls, Clutch pedal
switch: Removal - Refitting, page 37A-52) (37A,
mechanical control elements).IV - BLEED PROCEDURE IF PARTS OF THE
HYDRAULIC CIRCUIT ARE REMOVED.
a
Note:
Take care not to disrupt the adjustment of the
clutch start of travel switch.
Note:
The transparent pipe must remain at the same
height as the master cylinder reservoir to prevent
air from entering inside the clutch circuit.
WARNING
The master cylinder pipe must be disconnected
from its take-off point on the br ake fluid reservoir,
to avoid any foreign matter penetrating inside the
hydraulic brake circuit.
WARNING
Prepare for the fl ow of fluid and protect the sur-
rounding components.
Note:
Prefill the hydraulic circuit pipe equipped with a
filter.
Position the filter head facing downwards to
ensure that it fills.

37A-58
MECHANICAL COMPONENT CONTROLS
Clutch circuit: Bleed
JH3 or JR5
37A
There are several versions of pipe with and without
a filter:
Pipe without filter.
Filling position for pipe with filter.Filling position for pipe with filter.
Filling position for pipe with filter.
aPrefill the clutch pipe using the syringe.
aPlug the prefilled pipe on the master cylinder end to
stop any brake fluid from escaping.
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141811
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141813

37A-59
MECHANICAL COMPONENT CONTROLS
Clutch circuit: Bleed
JH3 or JR5
37A
aPrefill the hydraulic tappet using the new syringe (by
gravity).
aRefit the part(s) concerned.V - BLEED PROCEDURE AFTER A REMOVING A
COMPONENT OF THE HYDRAULIC CIRCUIT.
aKeep the clutch pedal in the upper position using a
strap attached to the steering wheel to ensure conti-
nuity of the hydraulic circuit during the bleed opera-
tion.
aRemove the bleed plug from the clutch slave cylin-
der.
aConnect a transparent pipe of sufficient length to the
bleed hole (at least thirty centimetres) in order to
place it at the same height as the reservoir.
aOpen the bleed screw.
aFill the brake fluid master cylinder reservoir until
brake fluid flows out of the bleed screw.
aConnect a new syringe containing 60 ml of ap-
proved brake fluid to the end of the transparent pipe.
aSlowly inject the entire contents of the syringe into
the hydraulic clutch circuit without injecting any of
the air from the top section of the syringe.
aClose the bleed screw.
aRemove the transparent pipe from the bleed hole.
aRefit the bleed plug.
aTop up the brake fluid level in the master cylinder
reservoir.
aDisengage and engage the clutch quickly around
twenty times.
aCheck that the clutch system is operating correctly.
aRepeat the bleed operation if necessary.
aCheck the adjustment of the switch. (see 37A, Me-
chanical component controls, Clutch pedal
switch: Removal - Refitting, page 37A-52) (37A,
mechanical control elements).
141809
Note:
Take care not to disrupt the adjustment of the
clutch start of travel switch.
Note:
The transparent pipe must remain at the same
height as the master cylinder reser voir to prevent
air from enter ing inside the clutch circuit.

37A-61
MECHANICAL COMPONENT CONTROLS
Clutch master cylinder: Removal - Refitting
JH3
37A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 411, 02A, Lifting equip-
ment).
aRemove:
-the front wheel on the driver's side (see 35A,
Wheels and tyres, Wheel: Removal - Refitting,
page 35A-1) ,
-the front wheel arch liner on the driver's side (see
Front wheel arch liner: Removal - Refitting) (MR
412, 55A, Exterior protection).
aUse a syringe to empty the brake fluid reservoir.
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aUnclip the hydraulic clutch master cylinder rod (1)
from the clutch pedal.aDisconnect the brake fluid fuel supply pipe (2) from
the hydraulic clutch master cylinder.
aInsert the blanking plugs.
aPull the clip (2) .
aDetach the end (3) of the hydraulic clutch control
pipe.
aInsert the blanking plugs.
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WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
121340
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37A-62
MECHANICAL COMPONENT CONTROLS
Clutch master cylinder: Removal - Refitting
JH3
37A
aUndo and remove the hydraulic clutch master cylin-
der (4) .
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aFit the hydraulic clutch master cylinder onto the bulk-
head.
aFit the hydraulic clutch master cylinder.
aRemove the blanking plugs.
aFit the end of the hydraulic clutch control pipe onto
the hydraulic clutch master cylinder.
aPush in the metal clip.
aRemove the blanking plugs.
aConnect the brake fluid supply pipe to the hydraulic
clutch master cylinder.
aClip the hydraulic clutch master cylinder rod onto the
clutch pedal.
II - FINAL OPERATION.
aTop up the brake fluid reservoir.
aBleed the hydraulic clutch control pipe (see 37A,
Mechanical component controls, Clutch circuit:
Bleed, page 37A-54) .aRefit:
-the front wheel arch liner on the driver's side (see
Front wheel arch liner: Removal - Refitting) (MR
412, 55A, Exterior protection),
-the front wheel on the driver's side (see 35A,
Wheels and tyres, Wheel: Removal - Refitting,
page 35A-1) .
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37A-63
MECHANICAL COMPONENT CONTROLS
Clutch circuit: Removal - Refitting
JH3
37A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 411, 02A, Lifting equip-
ment).
aRemove:
-the front wheel on the driver's side (see 35A,
Wheels and tyres, Wheel: Removal - Refitting,
page 35A-1) ,
-the front wheel arch liner on the driver's side (see
Front wheel arch liner: Removal - Refitting) (MR
412, 55A, Exterior protection),
-the battery (see Battery: Removal - Refitting)
(MR 411, 80A, Battery),
-the battery tray (see Battery tray: Removal - Re-
fitting) (MR 411, 80A, Battery).
aEmpty the brake fluid reservoir with a syringe.
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aPress and hold the clip (1) .
aPull out the hydraulic clutch control pipe by one
notch.aPress and hold the clip (1) again.
aPull the hydraulic clutch control pipe out another
notch and collect the fluid in a container.
aDepress the clutch pedal to empty the hydraulic
clutch control circuit.
aDetach the pipe at (2) and (3) .
121354
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
121118
121114

37A-64
MECHANICAL COMPONENT CONTROLS
Clutch circuit: Removal - Refitting
JH3
37A
aPull the clip (4) .
aUnclip the end piece (5) .
aRemove the hydraulic clutch control pipe.
aFit anti-contamination caps.
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aRemove the blanking plugs.
aRefit the clutch control pipe.
aFit the clutch control clip.
aConnect the pipe to the master cylinder and slave
cylinder.
II - FINAL OPERATION.
aBleed the clutch circuit (see 37A, Mechanical com-
ponent controls, Clutch circuit: Bleed, page 37A-
54) .
aTop up the brake fluid reservoir.
aCheck that the clutch system is operating correctly.
aRefit:
-the battery tray (see Battery tray: Removal - Re-
fitting) (MR 411, 80A, Battery),
-the battery (see Battery: Removal - Refitting)
(MR 411, 80A, Battery),-the front wheel arch liner on the driver's side (see
Front wheel arch liner: Removal - Refitting) (MR
412, 55A, Exterior protection),
-the front wheel on the driver's side (see 35A,
Wheels and tyres, Wheel: Removal - Refitting,
page 35A-1) .
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