valve Citroen C4 2005 2.G Workshop Manual

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BRAKES
BRAKE SPECIFICATIONSXSARA 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).
B3FP09HC
B3FP08ND
2
1
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AIR
CONDITIONING
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.afluid.
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.a fluid.
SPECIAL FEATURES: AIR CONDITIONING SYSTEM (R 134.a)
Compressor lubricant
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CONDITIONING
444
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Aircon circuit diagnosis table
Principal problem Symptom Possible causes
Incorrect adjustment of the aircon compressor
clutch
The clutch of the aircon compressor Aircon fluid quantity
remains engaged
Aircon compressor defective
The aircon compressor makes an abnormal Lack of aircon fluid in the aircon circuit
noiseAircon compressor valves defective
The clutch of the aircon compressor Aircon compressor clutch
remains engaged and slips
Auxiliaries drive belt
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AIR
CONDITIONING
(1)High pressure valve
(2)Low pressure valve
(3)Pressostat
(tighten to 0,6 m.daN)
(4)Aircon pressure reducer
(5)Filtering and drying cartridge
(6)Buffer capacity
«a»Outlet and inlet of the aircon pressure reducer, tighten to 0,8 m.daN
«b»Outlet and inlet of the aircon compressor, tighten to 0,7 m.daN
AIR CONDITIONING SYSTEM (R 134.a)
C5HP1BHP
Engines: ET3J4 - TU5JP4
C4
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CONDITIONING
448
(1)High pressure valve
(2)Low pressure valve
(3)Pressostat
(tighten to 0,6 m.daN)
(4)Aircon pressure reducer
(5)Filtering and drying cartridge
(6)Buffer capacity
«a»Outlet and inlet of the aircon pressure reducer, tighten to 0,8 m.daN
«b»Outlet and inlet of the aircon compressor, tighten to 0,7 m.daN
«c»and «d»Outlet and inlet of the aircon condenser, tighten to 0,6 m.daN
C5HP1BMP
AIR CONDITIONING SYSTEM (R 134.a)
Engine: EW10J4
C4
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CONDITIONING
449
(1)High pressure valve
(2)Low pressure valve
(3)Pressostat
(tighten to 0,6 m.daN)
(4)Aircon pressure reducer
(5)Filtering and drying cartridge
(6)Buffer capacity
«a»Outlet and inlet of the aircon pressure reducer, tighten to 0,8 m.daN
«b»Outlet and inlet of the aircon compressor, tighten to 0,7 m.daN
«c»and «d»Outlet and inlet of the aircon condenser, tighten to 0,6 m.daN
AIR CONDITIONING SYSTEM (R 134.a)
C5HP1BLP
Engines: EW10A - EW10J4S
C4
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CONDITIONING
450
(1) High pressure valve
(2)Low pressure valve
(3)Pressostat
(tighten to 0,6 m.daN)
(4)Aircon pressure reducer
(5)Filtering and drying cartridge
(6)Buffer capacity
«a»Outlet and inlet of the aircon pressure reducer, tighten to 0,8 m.daN
«b»Outlet and inlet of the aircon compressor, tighten to 0,7 m.daN
«c»and «d»Outlet and inlet of the aircon condenser, tighten to 0,6 m.daN
C5HP1BNP
AIR CONDITIONING SYSTEM (R 134.a)
Engine: DV6
C4
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CONDITIONING
451
(1)High pressure valve
(2)Low pressure valve
(3)Pressostat
(tighten to 0,6 m.daN)
(4)Aircon pressure reducer
(5)Filtering and drying cartridge
(6)Buffer capacity
«a»Outlet and inlet of the aircon pressure reducer, tighten to 0,8 m.daN
«b»Outlet and inlet of the aircon compressor, tighten to 0,7 m.daN
«c»and «d»Outlet and inlet of the aircon condenser, tighten to 0,6 m.daN
C5HP1BJP
AIR CONDITIONING SYSTEM (R 134.a)
Engine: DW10BTED4
C4
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AIR
CONDITIONING
(1)High pressure valve
(2)Low pressure valve
(3)Pressostat
(4)Dryer
NOTE:The method of connecting the High Pressure and Low Pressure compressor
pipes may vary according to engine type.
T
ightening torques (m.daN).
(a) : 0,8
(b) : 4 ± 0,4
XSARAAIR CONDITIONING SYSTEM (R 134.a)
C5HP16RP
Engines: TU3JP - TU5JP4 - EW10J4 - DV4TD - DW8B - DW10TD - DW10ATED
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AIR
CONDITIONING
(1)High pressure valve
(2)Low pressure valve
(3)High pressure clickfit union
(tool 8005-T.C)
(4) Low pressure clickfit union (tool 8005-T.A)
(5)Pressostat: 1,8 ± 0,6 m.daN
(6)Filtering/drying cartridge plug
T
ightening torques (m.daN).
a : 0,8.± 0,1
b : 0,5.± 0,1
c : 1,4 ± 0,2
d : 2,5 ± 0,25
XSARA PICASSO AIR CONDITIONING SYSTEM (R 134.a)
C5HP13PP
Engine: TU5JP+
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