Documentc5

DATA : SUSPENSION

1. Front suspension

Figure : B3CP05VP

Reference Description Tightening torques

(1) Suspension unit upper fixing 7 ± 0,7 daNm

(2) Fixing of suspension unit to body 4,3 ± 0,6 daNm

(3) Anti-roll bar link rod upper fixing 6,4 ± 0,6 daNm

(4) Fixing of suspension unit to pivot 5,4 ± 0,5 daNm

page 1 sur 14C5 - B3BB18P0 - Data : Suspension

CAUTION : From RPO number 9429 , Evolution of wheel bolt heads for steel and aluminium wheels. Dimension on the flat: 17 mm (instead of 19 mm).

(5) Anti-roll bar link rod lower fixing 6,4 ± 0,6 daNm

(6) Ball joint fixing 4,5 ± 0,4 daNm

(7) Ball joint fixing on pivot 25 ± 2,5 daNm

(8) Hub nut 32,5 ± 2,6 daNm

(9) Wheel bolts 9 ± 1 daNm

Figure : B3CP05WD


(10) Arm front fixing 13 ± 1,3 daNm

(11) Arm rear fixing 10,5 ± 1 daNm

(12) Anti-roll bar bearing fixing on subframe 4,2 ± 0,6 daNm


The front subframe is equipped with an anti-intrusion bar between the two front extensions. Tightening torque of bolts (13) : 6,6 ± 0,6 daNm.

2. Data

2.1. Hydractive hydraulic suspension 3

Steering : Power assisted steering. EW7J4, DW10TD, DW10TED, DW10ATED : engines. Suspension piston diameter : 35 mm.

2.2. Hydractive hydraulic suspension 3+

Steering : Power assisted steering. EW10D, EW10J4, ES9J4S, DW12TED4 : engines. Suspension piston diameter : 35 mm.

2.3. Front anti-roll bar (Saloon and Estate)

2.4. Checking the suspension heights

Figure : B3CP071D

Engines Diameter (mm) Colour identification

All types except for ES9J4 23,5 Yellow

ES9J4 24,5 White


The dimension "L1" for checking the front height is between the level "b" of the front subframe and the axis "a" of the wheel. This method does away with all the variations of measurement arising from the following factors :

� Types of wheels fitted � Vehicle load � Wear or incorrect inflation of the tyres

H1 = R1 - L1. H1 = Front height (± 6 mm). R1 = Wheel radius (mm). L1 = Theoretical dimension between the flat section of the front subframe and the centre line of the road wheel. L1 = 140 mm. The measurement of the front dimension "H1" is between the ground and the measuring zone on the front subframe (at the rear of the front suspension arm fixing yokes). Checking and adjusting procedure : See the relevant operation.

2.5. Suspension unit

Figure : B3BP166D


Bump stop : Height "A" = 97 mm.

3. Rear suspension

Figure : B3BP167D

Figure : B3DP09BD


(14) Subframe rear fixing (*) 11,5 ± 1,1 daNm

(15) Rear rubber mounting fixing on body 8 ± 1,2 daNm

(16) Anti-roll bar fixing 13,1 ± 1,4 daNm

(17) Subframe front fixing on body (*) 11,5 ± 1,1 daNm


N.B. : (*) Face and thread not greased.

4. Data

4.1. Hydractive hydraulic suspension 3

Steering : Power assisted steering. EW7J4, DW10TD, DW10TED, DW10ATED : engines.

4.2. Hydractive hydraulic suspension 3+

Steering : Power assisted steering. EW10D, EW10J4, ES9J4S, DW12TED4 : engines.

4.3. Rear anti-roll bar

Figure : B3DP09CD


(18) Arm spindle fixing 14,9 ± 1,3 daNm

(19) Hub nut 25 ± 2,5 daNm

(20) Wheel bolts 9 ± 1 daNm

Suspension piston diameter

Vehicle type Diameter

Saloon 37 mm

Estate 40 mm

Suspension piston diameter

Vehicle type Diameter

Saloon 37 mm

Estate 40 mm

Vehicle Engines Diameter (mm) Colour identification

Saloon All models (except ES9J4) 21,5 Blue

ES9J4 22,5 Yellow


4.4. Checking the suspension heights

The dimension "L2" for checking the rear height is between the measuring zone "b" and the axis "a" of the wheel. This method does away with all the variations of measurement arising from the following factors :

� Types of wheels fitted � Vehicle load � Wear or incorrect inflation of the tyres

H2 = R2 + L2. H2 = Rear height (± 6 mm). R2 = Wheel radius (mm). L2 = Theoretical dimension between the measuring zone on the crossmember support and the axis of the wheel. L2 = 73 mm. Checking and adjusting procedure : See the relevant operation.

4.5. Height control

Estate All models 22,5 Yellow

Figure : B3BP168D


(21) Collar screw : Tighten to 0,6 daNm.

5. Front and rear axle geometry

N.B. : Vehicle's front (in the direction of the arrow).

B lower or equal to C : Positive figure (+) (toe-in). B greater than or equal to C : Negative figure (-) (toe-out). Check the heights of the vehicle (see the relevant operation).

5.1. Front suspension geometry

Figure : B3CP072D

Figure : B3CP06UC

Test values

Castor Not adjustable 3° 03' ± 30'


5.2. Rear axle geometry

Prior to RPO No. 9435.

From RPO number 9436.

6. Hydraulic circuit

URGENT : Respect the precautions to be taken when working on the vehicle's hydraulic components and circuits (refer to the brochure "SAFETY AND CLEANLINESS PROCEDURES").

7. Setting of units

Tracking Adjustable -0°13' ± 0°13'

King pin inclination Not adjustable 12°56' ± 30'

Camber Not adjustable 0° ± 30'

Test values

Tracking Not adjustable 0°46' ± 0°11'

Camber Not adjustable -1° ± 20'

Test values

Tracking Not adjustable 0°39' ± 0°11'

Camber Not adjustable -1° ± 20'


(D) High pressure hydraulic circuit. (E) Low pressure hydraulic circuit. (F) Electrical circuit. (22) "slimline" type suspension spheres (front). (23) Front suspension cylinder. (24) 3+ hydractive regulator (front). (25) Hydractive regulator accumulator 3+ (front). (26) One-touch suspension control switch. (27) LDS fluid reservoir. (28) Rear height sensor. (29) 3+ hydractive regulator (rear). (30) Hydractive regulator accumulator 3+ (rear). (31) Rear suspension cylinder. (32) "slimline" type suspension spheres (rear).

Figure : B4CP01GP


(33) BHI. (34) Front height sensor.

N.B. : LDS: power-steering and suspension fluid.

8. Data

8.1. Hydraulic fluid

The LDS suspension fluid is orange in colour and 100 % synthetic (TOTAL LDS).

8.2. Hydraulic fluid reservoir

Checking the level of LDS fluid is carried out with the vehicle in the low position (see the relevant operation).

8.3. Integrated BHI (BHI)

Circuit capacity

Suspension type Steering type Capacity

Hydractive 3 L.H.D. 4,5 litres

Hydractive 3 Right hand drive 4,7 litres

Hydractive 3+ (all engines except ES9J4) L.H.D. 5,2 litres

Hydractive 3+ (all engines except ES9J4) Right hand drive 5,4 litres

Hydractive 3+ (ES9J4 engine) L.H.D. 5,4 litres

Hydractive 3+ (ES9J4 engine) Right hand drive 5,6 litres

Figure : B4BP01BC

Reference Function Component

"c" Return Suspension cylinders

"d" Suction line Integrated BHI (BHI)

Power-assisted steering pump

"e" Return Integrated BHI (BHI)

"f" Return Power-assisted steering pump


Figure : B3BP16PP

Reference Function Component

(36) Electronic control unit -

(38) hydraulic unit Flow : 0,7 litres per minute at 2300 rpm

- Pump with 5 axial pistons Piston diameter (mm) : 6,35

- Anti-pulse hydropneumatic accumulator Rating of the discharge valve : 180 bar

- Safety valve -

(35) Electric motor 2350 ± 150 rpm

(37) The suspension inlet electrovalve (front) The vehicle's anti-sink function is assured by the exhaust electrovalves

The suspension inlet electrovalve (rear)

The suspension exhaust electrovalve (front)

The suspension exhaust electrovalve (rear)


8.4. 3+ hydractive regulator

(39) Solenoid valve. (40) Hydractive suspension regulator. (41) "slimline" type suspension spheres. (42) Depressurising screw.

8.5. Hydraulic union

Figure : B4BP01KD

Figure : B4DP003D

Reference Tube diameter (mm) Tightening torque


URGENT : Each time work is carried out, it is necessary to replace the hydraulic seals.

CAUTION : Each time a hydraulic union marked "G" is removed : Extract the O-ring seal from its location.

G 3,5 1,5 ± 0,3 daNm

H 6,35 1,5 ± 0,3 daNm

J 10 2,5 ± 0,5 daNm


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