tow RENAULT TWINGO 2009 2.G Chasiss Manual PDF

38C-9
ANTI-LOCK BRAKING SYSTEM
Hydraulic brake unit: Removal - Refitting
D4F, and 780, and LEFT-HAND DRIVE – K4M, and LEFT-HAND DRIVE
38C
aDrain the refrigerant circuit using a refrigerant
charging station (see Refrigerant circuit: Drain-
ing - Filling) (62A, Air conditioning).
aRemove the "dehydrator reservoir - expansion
valve" connecting pipe (see Dehydrator reservoir -
expansion valve connecting pipe: Removal - Re-
fitting) (62A, Air conditioning).
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDisconnect the hydraulic unit computer connector
(5) .
aUndo the rigid brake pipe unions (6) on the hydraulic
unit.
aInsert the blanking plugs.aUnclip the fuel pipes (7) .
aRemove the bolts (8) from the hydraulic unit main
bracket.
aRemove the rear suspended engine mounting (see
Lower engine tie-bar: Removal - Refitting) (19D,
Engine mounting).
aFit theunder the engine.
aRemove the right-hand suspended engine mounting
(see Right-hand suspended engine mounting:
Removal - Refitting) (19D, Engine mounting).
aTilt the engine towards the front of the vehicle.
aRemove the "hydraulic unit bracket - hydraulic unit"
assembly from the body. K4M, and AIR CONDITIONING or CLIMATE CON-
TROL
122386
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
122385
K4M

38C-12
ANTI-LOCK BRAKING SYSTEM
Hydraulic brake unit: Removal - Refitting
RIGHT-HAND DRIVE
38C
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the battery (see Battery: Removal - Refit-
ting) (80A, Battery).aRemove:
-the scuttle panel grille (see Scuttle panel grille:
Removal - Refitting) (56A, Exterior equipment),
-the battery tray (see Battery tray: Removal - Re-
fitting) (80A, Battery),
-the bolts (1) from the secondary brake fluid reser-
voir.
aMove aside the secondary brake fluid reservoir.
aRemove:
-the petrol injection computer (see Petrol injection
computer: Removal - Refitting) (17B, Petrol in-
jection),
-the computer mounting bolts,
-the computer bracket. Tightening torquesm
hydraulic unit bolts on
its inter mediate bracket8 Nm
hydraulic unit inter medi-
ate bracket bolts on the
main hydraulic unit
bracket8 Nm
hydraulic unit main
mounting bolts on the
body8 Nm
rigid brake pipe unions
on the hydraulic unit14 Nm
secondar y brake fluid
reservoir bolts8 Nm
123854
K4M

38C-15
ANTI-LOCK BRAKING SYSTEM
Front wheel speed sensor: Removal - Refitting
38C
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 (see 35A, Wheels and ty-
res, Wheel: Removal - Refitting, page 35A-1) .
aRemove the clip (1) .
aLift part of the front wheel arch liner (2) .
aUnclip the pin (3) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDisconnect the front wheel speed sensor cable con-
nector (4) .
aUnclip the front wheel speed sensor cable at (5) and
(6) . Tightening torquesm
front wheel speed sen-
sor bolt8 Nm
121479
121478
121477

38C-17
ANTI-LOCK BRAKING SYSTEM
Rear wheel speed sensor: Removal - Refitting
38C
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 rear wheel (see 35A, Wheels and ty-
res, Wheel: Removal - Refitting, page 35A-1) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aOpen the rear wheel speed sensor connector pro-
tection unit flap (1) .
aDisconnect the rear wheel speed sensor cable con-
nector (2) .aUnclip the rear wheel speed sensor cable at (3) and
(4) . Tightening torquesm
rear wheel speed sen-
sor bolt8 Nm
121476
121476

38C-19
ANTI-LOCK BRAKING SYSTEM
Lateral acceleration and yaw sensor: Removal - Refitting
ELECTRONIC STABILITY PROGRAM
38C
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove:
-the front passenger seat (see Complete front
seat: Removal - Refitting) (75A, Front seat
frames and runners),
-the passenger side front sill lining (see Front door
sill lining: Removal - Refitting) (71A, Body inter-
nal trim).
aRemove:
-the driver's seat (see Complete front seat: Re-
moval - Refitting) (75A, Front seat frames and
runners),
-the driver's side front sill lining (see Front door sill
lining: Removal - Refitting) (71A, Body internal
trim).aRemove the floor carpet (1) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aDrill the rivets (2) of the protection plate (3) ,
aRemove the protection plate (3) .
aDisconnect the lateral acceleration and yaw sensor
connector (4) .
aRemove:
-the (5) lateral acceleration and yaw sensor nuts, Tightening torquesm
later al acceleration and
yaw sensor nuts8 Nm
LEFT-HAND DRIVE
RIGHT-HAND DRIVE
132469
132469

38C-21
ANTI-LOCK BRAKING SYSTEM
Braking computer: Removal - Refitting
38C
This repair method only relates to vehicles without
ESP, equipped with TEVES brand hydraulic unit.
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 411, 02A, Lifting equip-
ment).
aDisconnect the battery (see Battery: Removal - Re-
fitting) (MR 411, 80A, Battery).
aRemove the entire hydraulic unit (see 38C, Anti-
lock braking system, Hydraulic brake unit: Re-
moval - Refitting, page 38C-2) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove:
-the braking computer bolts (1) on the hydraulic unit,
-the braking computer (2) .
REFITTING
I - REFITTING PREPARATION OPERATION
aDo not clean the pressure modulation unit (3) . Special tooling required
Mot. 1608Torque screwdriver 1 to 6.6
N.m.
Equipment required
Diagnostic tool
Tightening torquesm
braking computer bolts3 Nm
WARNING
Prepare for the flow of fluid, and protect the sur-
rounding components.
121457
19113