CITROEN C6 2005 Owners Manual

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SUSPENSION
STEERING
(10)Rear suspension cylinder
(11)Rear suspension accumulator
(12)Variable damping suspension actuator
(13)Suspension pressure sensor
(14)Rear stiffness regulator accumulator
(15)Rear stiffness regulator
(16)Wheel travel sensor
Source of pressure.
Features.
Hydraulic fluid : LDS TOTAL H50126.
The LDS fluid orangein colour is 100% synthetic.
Capacity of the hydraulic circuit: 6.3 litres.
NOTE: LDS:Liquide Direction Suspension(steering/suspension fluid).
«a» LDSfluid reservoir filler (cap)
«b»Suction (BHI)(power steering pump)
«c»Return (stiffness regulators)
«d»Return (power steering pump)
«e»Return (filter)
«f»Suction (filter)
The level of the LDSfluid must be checked with the vehicle in the low position (refer to the
procedure «Depressurisation: suspension circuit»).
B3DP0BSDB4BP01SD
ACTIVE SUSPENSION WITH VARIABLE DAMPING
Rear axle
LDS fluid reservoir
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Composition of the Built-in Hydro-electronic Interface:
- An electric motor.
- A pump with 5 pistons.
- 4electrovalves.
- 2non-return valves.
- A pressure limiter.
- An anti-pulse accumulator.
- A filter.
- The suspension ECU.
Features of variable damping suspension.
Variable damping suspension ECU (CSS).
The ECU (CSS)is located in the engine compartment, in the ECU tray.
The ECU (CSS)manages the different damping laws, as a function of the information delivered
by the following components:
- The 4wheel travel sensors.
- The 2suspension pressure sensors.
- The speed of the vehicle.
- The speed of rotation of the steering wheel.
The suspension ECU (CSS)pilots the following components:
- The 4variable damping suspension actuators.
- The Built-in Hydro-electronic Interface (BHI).
B3BP1A1C
ACTIVE SUSPENSION WITH VARIABLE DAMPING
Built-in Hydro-electronic Interface (BHI)
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(9)Front RH wheel travel sensor
The wheel travel sensor defines the angular position of the suspension lower arm.
Identification of the sensors:
- Front RH wheel travel sensor: Yellow.
- Front LH wheel travel sensor: Red.
- Rear RH wheel travel sensor: Green.
- Rear LH wheel travel sensor: Blue.
IMPERATIVE: Before operating on a wheel travel sensor, uncouple its rod so as not to
go past the maximum angular travel (see corresponding operation).
The suspension pressure sensors (7)informs the suspension ECU (CSS)of the pressure in
the hydraulic high pressure pipes of the front suspension.
The sensor (13)informs the suspension ECU (CSS)of the pressure in the hydraulic high
pressure pipes of the rear suspension.
B3BP19ZCB3BP19YC
ACTIVE SUSPENSION WITH VARIABLE DAMPING
Wheel travel sensor
Suspension pressure sensor
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Each suspension cylinder has a variable damping suspension actuator.
(1)Variable damping suspension actuators (front)
(12)Variable damping suspension actuators (rear)
Anti-roll bars:
Front anti-roll bar.
ES9A: Diameter 23.5 mm Yellow.
DT17BTED4: Diameter 24 mm Pink.
Rear anti-roll bar.
ES9A and DT17BTED4: Diameter 20.6 mm Orange.
B3BP1A0D
ACTIVE SUSPENSION WITH VARIABLE DAMPING
Variable damping suspension actuator
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«g»One-touch control to raise body height
«h»Sport mode activation/deactivation switch
«j»One-touch control to lower body height
C5FP0R8C
ACTIVE SUSPENSION WITH VARIABLE DAMPING
One-touch control for body height
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SUSPENSION
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SUSPENSION: TIGHTENING TORQUES
Front suspension
1 Body suspension upper support 2,6 ± 0,32 Front suspension cylinder on Suspension upper support 2,4 ± 0,33 Suspension upper arm on Suspension upper support 4,5 ± 0,64 Suspension upper arm on Pivot support 8,5 ± 0,85 Suspension upper arm on Pivot support 20,5 ± 26 Pivot upper balljoint on Pivot support 15 ± 1,57 Pivot upper balljoint nut 6 ± 0,68 Front anti-roll bar rod on Front anti-roll bar 5 ± 0,59 Suspension lower arm on Pivot support 7,5 ± 1,1
B3CP09ECB3CP09DC
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SUSPENSION: TIGHTENING TORQUES10 Front pivot lower balljoint on Pivot support 6,5 ± 0,911 Front pivot lower balljoint on Pivot support 17 ± 1,712 Steering rack balljoint on Front pivot 3,5 ± 0,313 Rear fixing of suspension lower arm on Front subframe 11 ± 1,114 Rear fixing of suspension lower arm on Front subframe 6,5 ± 0,615 Fixing of front anti-roll bar bearing on Front subframe 4,5 ± 0,4
B3CP09WDB3CP09FC
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SUSPENSION: TIGHTENING TORQUES16 Fixing of suspension lower arm support on Front subframe 8 ± 0,817 Front fixing of suspension lower arm on Front subframe 12,3 ± 1,2
B3CP09XD
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SUSPENSION: TIGHTENING TORQUES
Rear suspension
18 Tracking adjustment rod on Rear pivot
19 Lower fixing of rear suspension cylinder on Rear pivot
7 ± 0,7
20 Suspension longitudinal arm on Rear pivot
21 Suspension lower arm on Rear pivot22 Rear anti-roll bar bearing on Body 7,5 ± 0,7
23 Suspension lower arm on Rear axle crossmember
7 ± 0,724 Tracking adjustment rod on Rear axle crossmember25 Screw for locking of tracking adjustment rod 1 ± 0,2
Suspension longitudinal arm on Body
26Pre-tightening3,3 ± 0,3
Angular tightening 150° ± 5°
27 Suspension upper arm on Rear pivot
28 Suspension upper arm on Rear axle crossmember 7 ± 0,7
29 Upper fixing of rear suspension cylinder on Rear axle crossmember
B3DP0CQDB3DP0CPD
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SUSPENSION: TIGHTENING TORQUES
Rear suspension
30 Upper fixing of rear anti-roll bar rod on Rear pivot
31 Lower fixing of rear anti-roll bar rod on Rear anti-roll bar 4 ± 0,632 Fixing of rear anti-roll bar half-bearing 1,8 ± 0,4
B3DP0CRD
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