2004 Citroen XSARA PICASSO charging

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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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ELECTRICAL
SYSTEM
C5HP073C
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)
Clickfit connector removing/fitting tool
Ø Inch
V ehicle
XSARA
XSARA
PICASSOTT
BP
HP5/8Black
8005T.A
3/8Red
8005T.C Ring colour Tool kit 4164T
Tightening torques (m.daN).
Unions
Steel/Steel
Aluminium/Steel Ø Pipes
1,7 ±0,3
1,3 ± 0,3 M 06
3,8 ± 0,3
2 ± 0,2
M 08
4 ± 0,3
2,5 ± 0,3 M 10
NOTE:Tighten the union to the recommended torque using a retaining spanner whenever possible.
NOTE:For operations concerning draining, drying (empty), checking and recharging of a system:refer to BRE 0290.
WARNING: For R 134.a quantities (see table on preceding page:483).
Aircon compressor fixings.
ESSENTIAL: Tighten the front part of the compressor(timing belt end), before the rear part of the compressor.

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26 ± 2 23,2 ± 2 21 ± 2 19,2 ± 2 15,3 ± 2 15 ± 2
4,3 ±2 3,4 ± 2 3,1 ± 2 2,8 ± 2 2,7 ± 2
25,2 ±223,6 ± 2 21,4 ± 2 20 ± 2 17,6 ± 2 14,5 ± 2
3,5 ± 2 3 ± 2 2,8 ± 2 2,5 ± 2 2,4 ± 2
26,2 ± 2 23,2 ± 2 21 ± 2 19,2 ± 2 15,3 ± 2 15 ± 2
4,3 ± 2 3,4 ± 2 3,1 ± 2 2,8 ± 2 2,7 ± 2
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Checking pressures
Tools. 1
charging station. 2thermometers.
Once the preliminary conditions, vehicle equipment and checks havebeen fulfilled
(see table). After the air conditioning has been on for
three minutes, record the following parameters: The temperature of the air coming from the central vents
(see table).
The High Pressure. The Low Pressure.
Compare the values recorded with the table below, or the graphs.
Ambient temperature in °C40 35 30 25 20 15
VehiclesEngines
C3
C3
C3 PlurielKFV
NFUHigh pressure (Bars)
Low pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)8HX 8HWVehicle using R134.a fluid
(Compressor with variable capacity)
High pressure (Bars)
AIRCONAIRCON
C3 C3 PLURIEL XSARA XSARA PICASSO KFV

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AIRCON
23 ± 2 22,5 ± 2 20 ± 2 17 ± 2 15,5 ± 2 14,5 ± 2
3,8 ± 0,2 3,6 ± 0,2 3,5 ± 0,2 3,1 ± 0,2 3 ± 0,2 2,9 ± 0,2
24,5 ±221,5 ±2 18,5 ± 2 17 ± 2 15,5 ± 2
4 ±0,2 3,8 ± 0,2 3,5 ± 0,2 3,2 ± 0,2 3 ± 0,2
21,5 ± 2 22,5 ± 2 20 ± 2 18 ± 2 16,5 ± 2 15,6 ± 2
3,2 ±0,23,3 ±0,23 ±0,22,8 ± 0,2 2,6 ± 0,2
25,5 ±320,5 ±318 ± 3 20 ± 3 13,5 ± 3 11 ± 3
4 ±0,33,5 ± 0,3 3 ± 0,3
25 ± 3 22,5 ± 3 20 ± 3 17 ± 3 15 ± 3
4 ±0,33,5 ± 0,3 3 ± 0,3
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Checking pressures
Tools. 1
charging station. 2thermometers.
Once the preliminary conditions, vehicle equipment and checks havebeen fulfilled
(see table). After the air conditioning has been on for
three minutes, record the following parameters: The temperature of the air coming from the central vents
(see table).
The High Pressure. The Low Pressure.
Compare the values recorded with the table below, or the graphs.
Ambient temperature in °C40 35 30 25 20 15
VehiclesEngines
XSARA
XSARA
PICASSOTU
EW
High pressure (Bars)
Low pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)DWVehicle using R134.a fluid
(Compressor with variable capacity)
High pressure (Bars)
XSARA XSARA PICASSO
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
TU
EW
DW