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AXLES
SUSPENSION
STEERING
WHEEL AND TYRES(1)Wheel bolt (all rim types)
(2)Light alloy wheel
(3)Steel aluminium wheel
NOTE:If mixed fixing bolts are fitted on steel wheels, the shoulders of the bolts
remain free.
Tightening torques for the wheel bolts.
9 ± 1 m.daN
B2GP00JD
Identification of the wheel bolts
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WHEEL AND TYRES(4)Valve(8)Seal
(5)Antenna(9)Cap
(6)HF transmitter unit(10)Nut
(7)Washer
Composition.
A SIEMENS HFtransmitter module (6) integral to each wheel in the place of the
valve, each including a lithium battery.
An HFreceiver in the communication module under the dashboard.
WARNING: Each time a tyre is replaced, it is necessary to replace the valve (4).
WARNING: Each time a wheel rim is replaced, it is necessary to replace the
seal (8).
WARNING: Each time a transmitter module is changed, it is necessary to have
the replacement recognised by the deflation detection ECU, using a diagnostic
tool.
B2GP01ND
Deflation detection system
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CHECKING AND ADJUSTING VEHICLE HEIGHT
IMPERATIVE: Respect the safety and cleanliness requirements.
Tools.
[1]Gauge for measuring radius of wheels (5 bolts): 9801-T
[2]Gauge for height under bodyshell: 2305-T
[3] LEXIAstation: 4171-T
[4] PROXIAstation: 4165-T
Preliminary operations.
Check the tyre pressures.
Place the vehicle on a 4 column lift.
Switch on the ignition.
Release the parking brake.
Put the vehicle in the high position.
Put the vehicle in the normal height position (driving height).
During:During the measuring, do not move the vehicle.
Reference heights: REFERENCE = Ignition switched on
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126 Place the tool [1]on the wheel
fixing bolts.
Measure the wheel radiuses
using tool [2].
Measure, using tool [2].
The front LHheight H1M: Measure between the ground and zone Aunder the front subframe.
The front RHheight H2M: Measure between the ground and zone Bunder the front subframe.
CHECKING AND ADJUSTING VEHICLE HEIGHT
Warning: During measurement of reference heights: Do not switch off the ignition
Measuring the front heights
Measuring the front wheel radiusesB3CP0AQD
B3CP0ARD
B3CP0ASD
Reference heights: REFERENCE = Ignition switched on
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127 Place the tool [1]on the wheel
fixing bolts.
Measure the wheel radiuses
using tool [2].
Measure, using tool [2].
The rear LHheight H3M: Measure between the ground and zone Cunder the rear axle crossmember.
The rear RHheight H4M: Measure between the ground and zone Dunder the rear axle crossmember.
CHECKING AND ADJUSTING VEHICLE HEIGHT
Measuring the rear heights
Measuring the rear wheel radiusesB3CP06AC
B3CP0ATD
B3CP0AUD
Reference heights: REFERENCE = Ignition switched on
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CHECKING AND ADJUSTING VEHICLE HEIGHTReference heights: REFERENCE = Ignition switched on
Adjusting the heights.
Calculate the following values:
- Front LH: K1M = R1 - H1M.
- Front RH: K2M = R2 - H2M.
- Rear LH: K3M = R3 - H3M.
- Rear RH: K4M = R4 - H4M.
Connect the diagnostic tool [3]or [4]to the vehicle's diagnostic socket.
Switch on the ignition.
Perform a global test.
Go into the menu.
Variable damping.
Adjustment of vehicle reference heights.
Enter the values K1M, K2M, K3Mand K4Min the diagnostic tool.
WARNING: The values should consist of 4 figures: Example: K1 = 160 mm - enter the value 0160.
Checking the heights after adjustment.
Check the heights:
- Front LH: K1 = 160 ± 6 mm.
- Front RH: K2 = 160 ± 6 mm.
- Rear LH: K3 = 111 ± 6 mm.
- Rear RH: K4 = 111 ± 6 mm.
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A < B = Positive figure: + = TOE-IN
A > B = Negative figure: - = TOE-OUTNOTE
VALUES FOR CHECKING AND ADJUSTING AXLE GEOMETRIES
IMPERATIVE: Respect the safety and cleanliness requirements.
Tools.
[1]Gauge for measuring radius of wheels (5 bolts): 9801-T
[2]Gauge for height under bodyshell: 2305-T
WARNING: «Check and adjust the axle geometries at referenceheight».
Conditions for checking and adjusting.
Check the tyre pressures.
Place the vehicle on a 4 column lift.
Check and adjust if necessary the vehicle heights (see corresponding
operation).
Steering rack locked at its zero point (see corresponding operation).
Switch off the ignition before removing the tools from the wheels.
Lower the vehicle.
Start the engine.
Put the vehicle in the high position.
Put the vehicle in the normal height position (driving height).
Stop the engine.
Switch on the ignition.
Check and adjust the front and rear axle geometries at reference
height.
WARNING: Do not switch off the ignition during checking and
adusting of the front and rear axle geometries.
NOTE:Front of vehicle (following the arrow).
B3CP02UC
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Rod for adjusting the rear tracking.
(1)Locking screw
(2)Adjusting screw
B3BP1BND
VALUES FOR CHECKING AND ADJUSTING AXLE GEOMETRIES
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