Renault Scenic 3 Chassis. Manual — part 3
30A
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5
GENERAL VEHICLE INFORMATION
Braking circuit bleed
30A
Precautions to be taken during the braking circuit blee-
ding operation:
- Check the brake fluid levels of the brake circuit and
the bleeding device.
- The braking regulation circuit must not have any hy-
draulic or electrical faults.
I - BLEEDING THE BRAKE CIRCUIT OUTSIDE THE
CONTROL CIRCUIT
This procedure should be used after one of the fol-
lowing components has been removed or replaced:
- the master cylinder,
- the brake fluid,
- the hydraulic unit (new and pre-filled),
- a rigid pipe,
- a hose,
- the reservoir,
- a calliper.
Put the vehicle on a two-post lift.
Connect the bleeding device to the vehicle brake
fluid reservoir (refer to the driver's handbook).
Fit the bleed reservoirs to the bleed screws.
Bleed the circuit by opening the bleed screws in the
following order (remember to close them after the
operation):
- the rear right-hand circuit,
- the front left-hand circuit,
- the rear left-hand circuit,
- the front right-hand circuit.
With the engine switched off, check the pedal travel;
if it is not correct, start the bleeding procedure again.
Top up the brake fluid level in the reservoir once the
bleeding device has been disconnected. Check the
tightness of the bleed screws and ensure that the
sealing caps are all present.
During a road test, trigger braking regulation to con-
firm that the brake pedal travel is correct. If the pedal
travel becomes incorrect during the road test, follow
the procedure for bleeding the braking regulation cir-
cuit.
II - BLEEDING THE BRAKE CONTROL CIRCUIT
This procedure can be applied after a road test with
brake regulation during which the pedal travel beco-
mes incorrect.
Put the vehicle on a two-post lift.
Referring to the equipment instructions, connect:
- tool brake circuit bleeding device (approved by
Renault) to the vehicle brake circuit,
- the Diagnostic tool.
Fit the bleed reservoirs to the bleed screws.
Bleed the regulation circuit using the Diagnostic to-
ol.
Run command SC006 « hydraulic assembly and
brake circuits bleed ».
Follow the instructions on the Diagnostic tool.
Disconnect the bleeding device.
Top up the brake fluid level in the reservoir.
Check the tightness of the bleed screws and ensure
that the sealing caps are all present.
During a road test, trigger braking regulation to con-
firm that the brake pedal travel is correct. If the pedal
travel becomes incorrect during the road test, follow
the procedure for bleeding the braking regulation cir-
cuit.
It is therefore possible to use a larger quantity of bra-
ke fluid than the capacity of the circuit.
Equipment required
brake circuit bleeding device (approved by Renault)
Diagnostic tool
WARNING
Special precautions to be taken during the brake
circuit bleeding operation: the vehicle ignition
must be switched off to ensure that the hydraulic
unit solenoid valves do not operate.
Note:
Depress and release the brake pedal alternately
(pumping action) throughout the bleed proce-
dure.
30A
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6
GENERAL VEHICLE INFORMATION
Anti-roll bars: Specifications
30A
I - FRONT AXLE
II - REAR AXLE
Bar diameter (mm)
Marking
22
Green
105839
F4R or F9Q – K9K, and DP0
Bar size (mm)
X 16.6
Y 43.9
K4J or K4M – K9K, and JR5
Bar size (mm)
X 15.7
Y 41.3
X
Y
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7
GENERAL VEHICLE INFORMATION
Tightening torques (in daNm) for the front axle
30A
101232
Reference
Description
Tightening torque
(daNm)
(1)
« Spring and shock absorber » assembly - body mounting bolt
2.1
(2)
Lower arm bolt
7
(3)
Sub-frame block bolt
10.5
(4)
Rear cross member bolt
6.2
(5)
Anti-roll bar - sub-frame mounting bolt
2.1
(6)
Radiator cross member front mounting bolt
10.5
(7)
Calliper support bolt
10.5
Steering rack - sub-frame mounting bolt
10.5
30A
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8
GENERAL VEHICLE INFORMATION
Tightening torques (in daNm) for the front axle
30A
101231
Reference
Description
Tightening torque
(daNm)
(8)
Shock absorber nut
6.2
(9)
Anti-roll bar tie rod ball joint nut
4.4
(10)
Shock absorber base bolt
10.5
(11)
Sub-frame tie-rod bolt
10.5
(12)
Lower arm ball joint bolt
6
(13)
Driveshaft nut
28
(14)
Wheel bolts
11
(15)
Track rod end nut
3.7
Side stiffener - radiator cross member mounting bolt
2.1
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