2005 CITROEN C6 engine

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AXLES
SUSPENSION
STEERING
FRONT AXLE: TIGHTENING TORQUES
Engines: ES9A - DT17BTED4
Front subframe
25 Suspension lower arm support on Front subframe 6,5 ± 0,926 Suspension lower arm on Front subframe 12,3 ± 1,2
B3CP09TC
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AXLES
SUSPENSION
STEERING
(1)Rear axle crossmember
(2)Rear axle crossmember rear rubber bush
(3)Rear axle crossmember front rubber bush
(4)Suspension longitudinal arm
NOTE:Rear axle in cast aluminium alloy, of multi-arm type.
(5)Suspension upper arm
(6)Rear pivot
(7)Hub-bearing
(8)Tracking adjustment rod
(9)Suspension lower arm
Hub-bearing:
- The rear hub-bearing is equipped with an ABS radial target (48pairs of poles).
Stub axle:
- Diameter 32 mm.
- The stub axle, joined onto the rear pivot, is not separable.
IMPERATIVE: The rear hub-bearing must not be placed in proximity to a source of
magnetism or of pollution by metal particles. Components must be clean and free from
any signs of abnormal wear or damage.
B3DP0BYDB3DP0BZD
REAR AXLE
Rear axleRear pivot
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AXLES
SUSPENSION
STEERING
(10)Rear anti-roll bar bearing
(11)Rear anti-roll bar bearing half-support
(12)Rear anti-roll bar
(13)Rear anti-roll bar rod
NOTE:The rear anti-roll bar bearings are not separable.
Anti-roll bar
Engines Diameter (mm) Colour ref.
ES9A - DT17BTED4 20,6 Orange
Vehicle geometry.
NOTE: The geometry specifications are given with the values for checking and adjusting the
axle geometries.
B3BP1AED
REAR AXLE
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AXLES
SUSPENSION
STEERING
REAR AXLE: TIGHTENING TORQUES
Engines: ES9A - DT17BTED4
1 Rear axle crossmember on Body 7,5 ± 0,7
2 Rear anti-roll bar bearing on Body
3 Tracking adjustment rod on Rear pivot
4 Rear suspension cylinder on Rear pivot
5 Suspension longitudinal arm on Rear pivot 7 ± 0,7
6 Suspension lower arm on Rear pivot
7 Suspension lower arm on Rear axle crossmember8 Tracking adjustment rod on Rear axle crossmember9 Locking of tracking adjustment rod 1 ± 0,2
Suspension longitudinal arm on Body
10Pre-tightening3,3 ± 0,3
Angular tightening 150° ± 5°
B3DP0BVDB3DP0BUD
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AXLES
SUSPENSION
STEERING
REAR AXLE: TIGHTENING TORQUES
Engines: ES9A - DT17BTED4
11 Suspension upper arm on Rear pivot
12 Suspension upper arm on Rear axle crossmember 7 ± 0,7
13 Rear suspension cylinder on Rear axle crossmember
14 Rear anti-roll bar rod on Rear pivot
4 ± 0,615 Rear anti-roll bar rod on Rear anti-roll bar16 Rear anti-roll bar bearing half support 1,8 ± 0,417 Rear hub-bearing nut 25 ± 2
B3DP0BXDB3DP0BWD
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AXLES
SUSPENSION
STEERING
A:Front suspension
B:Rear suspension
NOTE:The rear stiffness regulator is equipped with two accumulators.
(1)Variable damping suspension actuator
(2)Front suspension accumulator
(3)LDS fluid reservoir
(4)Front suspension cylinder
(5)Built-in Hydro-electronic Interface (BHI)
(6)Front stiffness regulator
(7)Suspension pressure sensor
(8)Front stiffness regulator accumulator
(9)Wheel travel sensor
B3BP1ASDB3CP09AD
ACTIVE SUSPENSION WITH VARIABLE DAMPING
Location of components
Front axle
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AXLES
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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AXLES
SUSPENSION
STEERING
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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