2000 Citroen C5 engine

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BLEEDING AND FILLING THE BRAKING SYSTEM
Tools.
[1] Generic bleeding apparatus: "LURO" or similar.
[2] PROXIA station: 4165-T.
[3] LEXIA station: 4171-T.
Bleeding, filling.
Draining the brake fluid reservoir.
- Drain the brake fluid reservoir (1) to the maximum (if necessary, use a clean syringe).
- Disconnect the connector (3).
- Uncouple the pipe (2).
- Remove the reservoir (1) by separating the lugs «a»from the shaft (4).
- Empty the brake fluid reservoir(1).
- Clean the brake fluid reservoir (1).
Remove :
- The brake fluid reservoir (1).
- The shaft (4).
- Couple the pipe(2).
- Reconnect the connector(3).
BRAKES
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BLEEDING AND FILLING THE BRAKING SYSTEM
Bleeding, filling (continued).
Filling the braking system.
WARNING : Use only those hydraulic fluids that are approved and recommended.
- Fill the brake fluid reservoir (1).
Bleeding the braking system.
WARNING: During the bleeding operation, take care to maintain the level of brake fluid in the reser-
voir and to top it up, using only brake fluid that is clean and clear.
Bleeding the primary circuit.
WARNING: The ABS should not be active during the bleeding operation.
- Front brake caliper: Bleed screw(5).
- Rear brake caliper: Bleed screw (6).
- Bleed each wheel cylinder, proceeding in the following order :
Front LH wheel.
Front RH wheel.
Rear LH wheel.
Rear RH wheel.BRAKES
231

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BRAKES
232
BLEEDING AND FILLING THE BRAKING SYSTEM
Bleeding, filling (continued).
With the bleeding apparatus
- Connect the bleeding apparatus [1] on the brake fluid reservoir (1).
- Adjust the apparatus pressure to 2 Bars.
For each circuit :
- Connect a transparent tube onto the bleed screw, submerge the other end of the tube in a clean container.
- Open the bleed screw, wait until the fluid is flowing out without air bubbles.
- Close the bleed screw.
- Remove the bleeding apparatus [1].
- Check the brake fluid level(Should be between «DANGER» level and«MAXI» level).
- Fill if necessary with the approved and recommended synthetic brake fluid.
Without the bleeding apparatus.
NOTE : Two operators are necessary.
For each circuit :
- Apply the brake pedal to place the circuit under pressure.
- Connect a transparent tube onto the bleed screw, submerge the other end of the tube in a clean container.
- Open the bleed screw, wait until the fluid is flowing out without air bubbles.
- Close the bleed screw.
- Remove the tool [1].
NOTE : Recommence the process a second time if that is necessary.
- Check the brake fluid level, (Should be between «DANGER»level and «MAXI»level).
- Fill if necessary with the approved and recommended synthetic brake fluid.

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BRAKES
BLEEDING AND FILLING THE BRAKING SYSTEM
Bleeding, filling (continued).
Bleeding the secondary circuit.
NOTE : The bleeding apparatus is connected on the brake reservoir.
- Use LEXIAorPROXIAdiagnostic tools.
Select the menu corresponding to the vehicle :
- ABS menu.
- ESP menu.
- Follow the instructions on the diagnostic tool.
- At the end of the bleeding process, check and top up, if necessary, the brake fluid level.
- Check that the brake pedal travel has not been lengthened, otherwise repeat the bleeding procedure.
- Remove the tools.

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234
HYDRAULIC
SYSTEM
HYDRAULIC SPECIFICATIONS
Location of components
(A)High pressure hydraulic circuit.
(B)Low pressure hydraulic circuit.
(C)Electric circuit.
(21)Built-in Hydro-electronic Interface (BHI).
(22) Front slimline sphere.
(23) Front suspension cylinder.
(24)Rear slimline sphere.
(25)Rear suspension cylinder.
(26)Front hydractive 3+ regulator accumulator.
(27)Front hydractive 3+ regulator.
(28)Rear hydractive 3+ regulator accumulator.
(29)Rear hydractive 3+ regulator
(30) Front height sensor.
(31)Rear height sensor.
(32) LDS fluid reservoir .
(33) Suspension switch.

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HYDRAULIC
SYSTEM
B4BP01BC
HYDRAULIC SPECIFICATIONS
Reservoir
Reference Function Component
"d"InductionBuilt-in Hydro-electronic. Interface (BHI).
Power steering pump
"e"Built-in Hydro-electronic. Interface (BHI).
"f"Return Power steering pump
"c"Suspension cylinders
Synthetic fluid TOTAL FLUIDE LDS.
Capacity of the circuit 4.3 litres.

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HYDRAULIC
SYSTEM
236
HYDRAULIC SPECIFICATIONS
Built-in Hydro-electronic Interface (BHI).
Ref. Component Specifications
(36)Electric motor 2350 ± 150 rpm
Hydraulic unit comprising :
Pump with 5 axial pistons Throughput = 0.7 l/min at 2300 rpm
(35)- Anti-pulse hydropneumatic Diameters of the pistons = 6.35 mm
accumulator Safety valve rating = 180 Bars
A safety valve
(34)Electronic control unit
4 electrovalves:
Front suspension inlet The vehicle’s anti-sink function
(37)Rear suspension inlet is assured
Front suspension exhaust by the exhaust electrovalves
Rear suspension exhaust

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SYSTEM
237
B4BP01CDB4DP003D
HYDRAULIC SPECIFICATIONS
Hydractive 3+ regulator
(40) Slimline sphere.
(39) Hydractive regulator.
(38) Electrovalve.
(41) Depressurisation screw.Hydraulic unions
ReferenceTube diameter Tightening torque
(mm) m.daN
G 3.5
1.5 ± 0.3
H 6.35
J 10 2.5 ± 0.5