circuit Citroen XSARA PICASSO 2004 1.G Repair Manual

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BRAKES
B3FP15YCB3FP15ZD
BLEEDING AND FILLING THE BRAKING SYSTEM (Continued)
Bleeding the primary braking circuit.
WARNING:The ABS should not be active during the
bleeding operation.
Front brake caliper, Bleed screw
(5).A: Rear brake caliperB: Rear brake drum
Bleed screw
(6).
Bleed each wheel cylinder, proceeding in the following
order:
Front LH wheel.
Front RH wheel.
Rear LH wheel.
Rear RH wheel
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BRAKES
B3FP160C
BLEEDING AND FILLING THE BRAKING SYSTEM (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 «MINI»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 «MINI»level and «MAXI»level).
Fill if necessary with the approved and recommended synthetic brake fluid.
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BRAKES
BRAKE SPECIFICATIONS XSARA
Braking system specifications
“X”braking circuit.
Front: disc brakes, ventilated
(according to model).
Rear: drum brakes with automatic adjustment.
Cable operated handbrake acting on the rear wheels.
(1)Hydraulic valve block «ABS Bosch 5.3» or(1)Hydraulic valve block «ABS Bosch 5.3 REF» or(1)Hydraulic valve block «ABS with ESP Bosch 5.7».
(2) Load sensitive braking compensator (according to model).
B3FP09HCB3FP09JC
2
1

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BRAKES
BRAKE SPECIFICATIONS
Braking circuit with ESP (BOSCH 5.7)
(A) Hydraulic circuit(B) Electrical circuit
(1)Master cylinder in tandem(2)Braking servo(3)Brake caliper (or drum at the rear)(4)Toothed wheel(5) Wheel sensor(6)Brake fluid level sensor(7)Hydraulic block plus ECU(8) Stoplamp switch(9)Instrument panel(10)Diagnostic socket(11)Builtin systems interface (BSI)(12)Steering angle sensor(13)Gyrometer/accelerometer sensor(14)Switch
B3HP004P
XSARA

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BRAKESBRAKE SPECIFICATIONS
Electrical circuit
ComponentsRef.
SupplierPart no.Observations
42wayconnector.
Integral to the hydraulic block..Changing only the ECU is prohibited.
2waygrey connector.
The sensors are inductivetype.Tightening torque:
0,8 ± 0,2 m.daN.
2waygrey connector.
The sensors are inductivetype.Mounted on the brake caliper support.
Nonadjustable airgap:
0,3 to 1,2 mm.
Tightening torque:0,8 ±0,2 m.daN.
2waygrey connector.
The sensors are inductivetype.
Mounted on the suspension arm.
Nonadjustable airgap:
0,3 to 1,2 mm.
Tightening torque:0,8 ±0,2 m.daN.
Incorporated in the COM 2000.
6wayblue connector.
Located on the central console.
6way connector.
Toothed wheel:
48 teeth.
Integral with the driveshaft stub housing for
the front wheels, joined to the hub bearing for
the rear wheels.
XSARA
5.7 ESP
0 265 006 389
0 265 006 202
0 265 006 203
0 265 006 441 BOSCH
VALEO
BOSCH
GKNElectronic
ECU
Front wheel sensor
Rear wheel sensor
(disc brakes)
Rear wheel sensor(Saloon: drum brakes)
Rear wheel sensor(Estate: drum brakes)
Steering angle sensor
Gyrometer/accelerometer sensor
Toothed wheel7
5
12
13
4

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BRAKES
BRAKE SPECIFICATIONS XSARA PICASSO
Braking system specifications
“X”braking circuit.
Front: disc brakes, ventilated. Rear:drum brakes with automatic adjustment.
Cable operated handbrake acting on the rear wheels.
Load sensitive braking compensator
(non ABS versions).
(1) Hydraulic valve block «ABS Bosch 5.3»or(1) Hydraulic valve block + ECU.(2) Load sensitive braking compensator (according to version).
B3FP09HCB3FP08ND
2
1

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BRAKESBLEEDING THE BRAKESXSARA PICASSO
Tools.Bleeding equipment of type «LURO» or similar.IMPERATIVE: For bleeding the secondary circuit, use ELIT, LEXIA or PROXIA diagnostic tools.
Draining.
Drain the brake fluid reservoir as empty as possible using a syringe.
Disconnect the brake fluid warning lamp connector.Retrieve the brake fluid reservoir from its supply pipes by pulling upwards.
Finish emptying the reservoir of brake fluid.
Clean the brake fluid reservoir.
Refit the brake fluid reservoir.
Reconnect the brake fluid warning lamp connector.
Filling.Refill the reservoir with brake fluid.WARNING:Use only the recommended hydraulic fluids.
Bleeding.
NOTE:Two technicians are required.
IMPERATIVE:During bleed operations, ensure that the level of brake fluid is maintained in the
reservoir and top it up, use only new brake fluid.
Bleed each wheel cylinder, proceeding in the following order:
Rear right hand wheel.
Front left hand wheel.
Rear left hand wheel.
Front right hand wheel.

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ELECTRICAL
SYSTEM
CHARGING CIRCUIT ALTERNATOR WITH MONOFUNCTION REGULATOR
Checking the alternator output.
Connect as shown in the diagram opposite, using an ammeter (A), a voltmeter (V),
and a rheostat
(R)or a Volt/Ammeter/Rheostat combination.
Referring to the vehicle’s equipment specification
(see table opposite), adjust the
engine speed and rheostat charge to obtain
U = 13.5 V.
Reminder:The excitation energising current will flow through the warning lamp;
check that the warning lamp comes on when the ignition is switched on. It shouldgo out when the engine has started
(accelerate slightly).
Checking the voltage regulator.
Set the rheostat to zero and disconnect all the electrical consumers.
Display
3000alternator rpm. If U alternator is > 14.7 V, the regulator is faulty.
Note:These tests should be performed with the engine hot and the battery fully
charged.
Method of reading the alternator speed.
Fit a reflecting shim on the pulley of the alternator.
Adjust a stroboscope to the frequency equivalent to the control speed.
(e.g. 2000 rpm = 2000/60 = 83 Hz).
Adjust the engine speed so that the shim appears fixed.
D1AP025C
A: Ammeter.B:Battery.G: Generator.L: Warning lamp.K1and K2:Switch.R: Electric charge.S:Shunt 200mV/200A.V:Voltmeter.1 : Alternator.

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ELECTRICAL
SYSTEM
CHARGING CIRCUIT ALTERNATOR WITH MONOFUNCTION REGULATOR
MINIMUM OUTPUTS (in A)
Alternator
speed
1800 rpm 11
27 39 46 61 73 89 108
2000 rpm 1234 46 54 68 80 105 123
3000 rpm 1347 60 68.5 84 100 139 164
4000 rpm 1455 65 75 92 110 145 176
6000 rpm15616978.5 96 120 151 183
8000 rpm 1663 70 80 97 123 157 188
15000 rpm1764738297124157188
Min.outputClass
6789121518
Alternator speed
1800 rpm
49 50 52 57 58 60 61
2000 rpm48 49 51 54 55 57 60
3000 rpm45464851525456
4000 rpm43 44 46 48 50 52 53
6000 rpm3940 42 43 48 50 50
8000 rpm26373940454848
15000 rpm24252729343838
Class
6789121518MINIMUM YIELDS (in %)

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AIRCONAIRCON
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)
Changing the filtering/drying cartridge
Tools.
[1]
Charge station :(according to workshop equipment)[2]TORX adaptor: TORX 70 FACOM
[3]Inertia extractor:1671T Tool kit 4114T
[4]Endpiece Ø 20 : 1671T.D20
[5]Set of plugs: ().0188.T
[6]Circlip pliers: FACOM
Removing.
Depressurise the aircon circuit, using tool [1].
Remove the grille.At
«a», remove the pin and the plastic cover.
Unclip the condenser at «b»and «c», using a screwdriver.
Tilt the condenser towards the front.
Lift and release the condenser.Clean the area around the cap
(3).
Remove the plastic cap (3), using tool [2].
Remove the safety circlip (4), using tool [6].
Position the tool [3]and[4]in the aperture of the cartridge (5).
Extract the cartridge from the reservoir (6), using tool [3]and [4].
Block the reservoir (6), using tool [5].
C4AP163CC4AP164CC4AP166CC4AP165C
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