2004 Citroen C3 pressure

Downloaded from www.Manualslib.com manuals search engine 440
BRAKES
Without ABS 23,8 (expansion holes)Ftec ABS 23,8 (valve)
228,6
BOSCH 54 LUCAS 57 BOSCH 54
266 283 266
22 / 20
FERF 769 ASFM 380 FERF 769
13 / 2
228 / 230 228 / 230
247247
8 / 68 / 6
JURID
E 558519 E 558 519
BOSCH/Loadsensitive compensator
32
0,3 White
BRAKE SPECIFICATIONS
Estates
1.4i 1.6i 16V 2.0i 16V 1.9 D 1.4 HDi 2.0 HDi
Engine type KFW NFU RFN WJY 8HZ RHY RHZ
FTØ
mmMaster cylinder
Master vac
Caliper/piston makes
Disc
Disc thickness/min. thicknessVentilated
Brake pad grade
thickness/min. thickness
RRØ
mmDrum Ø min./max.
Disc nonventilated
Make
Brake lining grade
Make/Type
Cutoff pressure in Bars
Ramp/Paint reference
Disc thickness/min.thickness
XSARA

Downloaded from www.Manualslib.com manuals search engine 451
BRAKES
BLEEDING THE BRAKESXSARA
Bleeding:The brakes can be bled either:
using brake bleeding equipment, in which case the pressure of the equipment should be set to 2 Bars.
or in the conventional way.
IMPERATIVE order of bleeding
Wheels:
Rear Right.
Front Left. Rear Left.
Front Right.
Top up using brake fluid supplied by
CITROEN Replacement Parts.

Downloaded from www.Manualslib.com manuals search engine 452
BRAKESBRAKE SPECIFICATIONS
(*) ESP + Electronic Stability Program
XSARA PICASSO
Mercosur Europe
Without ESP (*)
2.0i 16V 2.0 HDi 1.6i 1.8i 16V 2.0i 16V 2.0 HDi
Engine type RFN RHY NFV 6FZ RFN RHY
Master cylinder
23,8
Master vac
Ø Master cylinder travel
254/34
FT mm
CaliperLUCASBOSCHpiston makesC54/54ZOH54/54
Disc Ventilated266
Disc thickness/min. thickness20,4/18,4 22/20
Makes/Brake pad gradeJURID/3724FERODO/769 (37)
Rear brake plates
Supplier/TypeLUCAS/ENERGIT/C52980
Ø Cylinder or caliper22,2
mm Drum/Ø maxi228,6/230
RR MakeABEX
Brake lining grade4930/2
Compensator/Supplier/TypeTEVESITTA (loadsensitive rear braking compensator)
Cutoff pressure in Bars20/61,6

Downloaded from www.Manualslib.com manuals search engine 496
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)
Compressor lubricant
ESSENTIAL: The compressor lubricant is extremely hygroscopic; always use FRESH oil.
Checking the compressor oil level
There are three specific cases:
1/
Repairs to a system without leaks.2/Slow leak.3/Fast leak.
1/ Repairing a system without leaks.
a)Using draining/recovery equipment not fitted with an oil decanter.
Drain the system as slowly as possible via the LOW PRESSUREvalve, so as not to lose any oil.
No more oil should be added when filling the system with
R 134.a fluid.
b) Using draining/filling equipment fitted with an oil decanter. Drain the R 134.afluid from the system in accordance with the instructions in the equipment handbook.
Measure the amount of oil recovered.
Add the same amount of
NEWoil when filling the system with R 134.afluid.
c) Replacing a compressor. Remove the old compressor, drain it and measure the oil quantity.
Drain the new compressor (supplied full), so that the same amount of NEWoil is left in the compressor as was in the old compressor.
No more oil should be added when filling the system with R 134.afluid.
AIRCONAIRCON

Downloaded from www.Manualslib.com manuals search engine 498
AIRCONAIRCON
AIR CONDITIONING SYSTEM R 134.a
Testing procedure
Conditions inside the vehicle.
Positions of the air conditioning controls:
Maximum cold.
Maximum blower power.
Air distribution on
«ventilation»with the air vents open.
Position the air inlet flap to outside air.
WARNING:For RFTA (1), disconnect the air inlet motor connector, first
ensuring that it is in the outside air position.
(1) RFTA= Fully automatic air conditioning.
Test procedure.When all these conditions are met, proceed in the following order:
Measure the temperature in the workshop approx. one metre in front of
the vehicle’s air inlet grille.
Start the engine
(without the air conditioning, or the blower, operating)and wait for the cooling fan slow speed to trigger (should the engine tem
perature not rise sufficiently, it is permissable to increase the engine
speed to 2000 rpm)
.
Once it is sufficiently hot in the engine compartment, return the engine
to idle and commence the test.Switch on the air conditioning and adjust the engine speed to
2500 rpm.
In an ambient temperature of 40°C, the engine speed will be brought
down to 2000 rpm, in order for the pressure safety threshold to cut off the
compressor.
For further temperatures/pressures: see Tables and Graphs on following
pages
221, 222 and 226.
After
3 minutesof operation, note down the following 3 parameters:
The temperature of the blown air coming out of the 2 central air vents
(take the average).
The high pressure, via the intermediary of the clickfit union (at the
pressure reducer inlet).
The low pressure, via the intermediary of the clickfit union (at the pressure
reducer outlet).NOTE:The low and high pressures are absolute pressures.
When measuring the blown air temperatures, avoid any contact between
the thermocouple and the air vents.
At the conclusion of the test involving vehicles with
«RFTA»
ALL TYPES

Downloaded from www.Manualslib.com manuals search engine 500
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

Downloaded from www.Manualslib.com manuals search engine 501
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

Downloaded from www.Manualslib.com manuals search engine 502
AIRCONAIRCON
(1)High pressure valve.
(2)Low pressure valve.
(3)Pressostat.
(4)Filter.
Tightening torques (m.daN).
(a) : 0,6
(b) : 0,6
(c) : 0,6
(d) : 0,6
(e):0,6
(f) : 0,7
C5HP19UP
C2AIR CONDITIONING SYSTEM R 134.a