Get AIR CONDITIONING Guide for Citroen Xantia 4 Door Second Generation (1993-2002)

ALL TYPES

AIR CONDITIONING R 134 a (HFC)

Compressor

Refrigerant refill

Vehicle

Engine

Date

Capacity

Variable

Oil quantity

cc

(± 25 gr)

Oil reference

SP 10

10/94 ꢀ

01/97 ꢀ

875 gr

XU All types

3.0 i V6

SD 7 V 16

135

XANTIA

XUD All types

DW 10 All types

(Except 2.1 TD)

825 gr

02/96 ꢀ

PLANETELF

488

DELPHI V5

(1)

265 ± 15

05/97 ꢀ

10/93 ꢀ

05/97 ꢀ

850 gr

725 gr

825 gr

2.1 TD

XU All types

3.0 I V6

XM

XUD All types

(Except 2.5 TD)

725 gr

10/93 ꢀ

135

SP 10

SD 7 V 16

07/94 ꢀ

06/94 ꢀ

825 gr

2.5 TD

1000 ± 50 gr

All types

SYNERGIE

(1) HARRISON Division

282

ALL TYPES

Tool kit 4164-T

8005-T.A.

SPECIAL FEATURES : AIR CONDITIONING SYSTEM (R 134.a)

Click-fit union removal/fitting tool

Vehicle

XANTIA

Ø Inch

5/8

Ring colour

Black

All types

SYNERGIE

XM

3.0 i V6

All types

(except V6)

1/2

Blue

8005-T.B.

XM

C5HP073C

Tightening torques (m.daN).

Unions

Steel/Steel

Ø Pipes

Aluminium/Steel

1.7 ± 0.3

3.8 ± 0.3

4 ± 0.3

M 06

M 08

M 10

1.3 ± 0.3

2 ± 0.2

2.5 ± 0.3

REMINDER : Refilling the air conditioning system should be done through the LOW PRESSURE valve whenever possible.

NOTE : The diameters of the High Pressure and Low Pressure valves are different, to avoid mixing them up.

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 page: 280)

283

SPECIAL FEATURES : AIR CONDITIONING SYSTEM (R 134.a)

ALL TYPES

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 PRESSURE valve, 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.a fluid from the system in accordance with the instructions in the equipment handbook.

- Measure the amount of oil recovered.

- Add the same amount of NEW oil when filling the system with R 134.a fluid.

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 NEW oil 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.

284

SPECIAL FEATURES : AIR CONDITIONING SYSTEM (R 134.a)

ALL TYPES

Checking the compressor oil level (continued)

2) Slow leak.

- Slow leaks do not lead to oil loss, therefore the same procedure should be followed as if there was no leak at all.

3) Fast leak.

- This type of leak causes both oil loss as well as allowing air to enter the system.It is therefore necessary to :

- Replace the dehydrator.

- Drain as much oil as possible (when replacing the faulty component).

Either before or during filling of the system with R 134.a fluid, introduce 80 cc of NEW oil into the system

285

ALL TYPES

SPECIAL FEATURES : AIR CONDITIONING SYSTEM (R 134.a)

Presence of pollen filter

Vehicle

Equipment

RPO

No.Presence

NO

of

filter

driving

Observ

school

AX-SAXO-ZX-BX-C15

All Types

Without aircon

Base aircon

YES (Behr)Exc.

XSARA

XSARA PICASSO

YES (Larger)

Regulated aircon

Without aircon

Regulated aircon

All Types

YES (Valeo)

NO

YES

NO

XANTIA I and II

XM I and II

Except Brazil

Without aircon

Base aircon

NO

# 8148

8148 # 8421

Do not fit

Ingress of water

modification

2 blowers

SYNERGIE

YES (Behr)Body

YES if Exclusive

NO if X and SX

Automatic aircon

8421 #

1 blower

Without aircon

Base aircon

NO (Valeo)

YES (Valeo)

NO

BERLINGO

DISPATCH

All Types

Base aircon

NO

Without aircon

Base or double aircon

NO

RELAY

YES

286

XANTIA

SPECIAL FEATURES : AIR CONDITIONING SYSTEM (R 134.a)

Removing/refitting the pollen filter

Remove.

- Access from below the dashboard on passenger's side, remove the sound-

deadening (1).

- Remove the three screws (2) and the cover (3).

Remove the filter (4).

Refit.

- Proceed in the opposite order to removal.

C5HP00UC

C5HP00VC

C5HP00WC

287

XANTIA

POINTS PARTICULIERS : CIRCUIT DE REFRIGERATION (R 134.a)

Evaporator.

OLD

01/97

NEW 01/97

:

C5HP063C

C5HP062C

The evaporator makes use of new technology and is called a "plate evaporator".

The coils around which the R 134.a fluid flowed previously, are replaced by plates which offer a greater area of contact with the air, thus increasing

evaporator efficiency.

288

CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM

CHECKING TEMPERATURES.

ALL TYPES

TOOLS

CHECKS.

If all these conditions are met, take the following action :

Two thermometers.

- Start the engine, with the air conditioning off, and wait for the cooling fan

first speed to cut in.

- Operate the air conditioning and set the engine speed to 2500 rpm.

Preliminary conditions.

Position of the air conditioning controls :

- Maximum cold air.

- Air blower in maximum position.

- Air distributor in "ventilation" position, with the dashboard vents open.

- Air intake flap in "exterior air" position.

NOTE : If the exterior temperature reaches 40 °C, the engine speed will

return to 2000 rpm in order to prevent the compressor from being cut off

by the High Pressure safety device (Pressostat).

After the air conditioning has been on for three minutes, measure :

- the exterior temperature in the workshop,

- the temperature of the air coming out of the central vents.

Conditions and vehicle equipment.

Compare the two values using the table overleaf.

- Bonnet closed.

- Doors and windows shut.

- Ensure the vehicle is in a sheltered area (away from wind, sun, etc..).

289

ALL TYPES

CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM

CHECKING TEMPERATURES. (continued)

Vehicle using R134.a fluid (Compressor with variable capacity)

Exterior temperature in °C

40

35

30

25

20

15

Vehicles

XANTIA

20 ± 3

24 ± 3

16 ± 3

18 ± 3

13 ± 3

15 ± 3

11 ± 3

13 ± 3

12 ± 3

8 ± 3

9 ± 3 ( )

*

Temperature in °Cat the

central vents

10 ± 3

XM

8 ± 3

SYNERGIE

( ) At exterior temperature 20°C, air temperature from the central vents is for second speed of the ventilator fan.

*

If fan operates at first speed, then air temperature from the central vents becomes 8.4 ± 3 °C.

NOTE : In general, the temperature of the air being blown from the central vents should be around 5°C to 8°C.

290

CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM

ALL TYPES

CHECKING PRESSURES

TOOLS : 1 Charging station and 2 Thermometers.Observing the

preliminary conditions, as well as vehicle equipment and checks

(see page 287) :After the air conditioning has been operating for

three minutes, record the following parameters :

- The temperature of the air coming out of the central vents See the table on

page 290).

- The High Pressure.

- The Low Pressure.Compare the values recorded with the table below, or

the graphs.

Vehicle using R134.a fluid (Compressor with variable capacity)

40

35

30

25

20

15

Exterior temperature in °C

Vehicles

High pressure (Bars)

Low pressure (Bars)

High pressure (Bars)

Low pressure (Bars)

High pressure (Bars)

Low pressure (Bars)

High pressure (Bars)

Low pressure (Bars)

24 ± 3

21 ± 3

2.5 ± 3

18 ± 3

14 ± 3

4 ± 0.3

XANTIA (1)

4 ± 3

21 ± 3

1.9 ± 3

24 ± 0;3

3 ± 0.3

16 ± 3

19 ± 3

14 ± 3

13 ± 3

XANTIA (2)

XM

1.4 ± 0.3

17 ± 3

15 ± 3

4 ± 0.3

2.5 ± 0.3

16 ± 3

1.8 ± 0.3

SYNERGIE

2.1 ± 0.3

1.8 ± 0.3

(1) SANDEN Compressor (Petrol engines : all types) - (2) = HARRISON Compressor (Diesel engines : all types).

If the parameters recorded do not correspond to those in the above table, refer to the table (see page 290).

291

ALL TYPES

CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM

CHECKING PRESSURES (continued)

Low pressuretoo low

Low pressuretoo high

Low pressurenormal

- Insufficient fluid charge.

- Constriction of the HP system.

- Dirty pressure control valve.

- Cooling fan speed unsuitable.

- Faulty compressor.

- Faulty pressure control valve.

- Faulty compressor.

High pressuretoo low

High pressurenormal

- Faulty compressor.

- Dirty evaporator.

- Circuit normal.

- Cooling fan speed unsuitable

- Presence of solid matter in the

system.

- Dirty condenser.

- Excessive fluid charge.

- Dirty condenser.

- Faulty pressure control valve.

- Cooling fan speed unsuitable.

- Faulty pressure control valve.

- System blocked.

- Water in the system.

High pressuretoo high

Checking the pressure at temperatures between 15°C and 35°C for information only.

In general, the pressure should be approximately :

- for R134.a fluid, less than 2 Bars (Low pressure), and between 13 and 24 Bars (High pressure).

292

AIR CONDITIONING SYSTEM R134.a

XANTIA All Types (Except V6 - XUD)

C5HP12EC

Tightening torques (m.daN).

a - 1.8

b - 1.8

c - 1.8

(1) High pressure valve

(2) Low pressure valve

(3) Clickfit union

d - 1

e - 3.5

f - 0.7

C5HP12GD

293

AIR CONDITIONING SYSTEM R134.a

XANTIA V6

C5HP12EC

(1) High pressure valve

(2) Low pressure valve

(3) Clickfit union

(4) Pressostat

C5HP12HD

294

AIR CONDITIONING SYSTEM R134.a

XANTIA All Types (Except XUD)

Checking the air conditioning circuit

Key

T = Temperature (C°) and High Pressure

(Bars).

P = Low pressure (Bars).

Te = Exterior temperature (C°).

HP = Pressure at compressor outlet (Bars).

Ta = Temperature of air blown from the

central air vents (C°).

BP = Pressure at compressor inlet (Bars).

C5HP01ZD

295

XANTIA - XUD

AIR CONDITIONING SYSTEM R134.a

(1) - High pressure valve

(2) - Low pressure valve

Air conditioned XANTIA XUD All Types are equipped with a new

"HARRISON" refrigeration compressor, with variable capacity.

All other models are fitted with a "SANDEN" compressor.

Parts modified.

(5) - "HARRISON" variable capacity compressor, reference

"DELPHI V5".

(3) - Air conditioning pipes, secured to the compressor with nuts

instead of clamps.

(4) - Modified seals to suit the new attachments.Belt length : 1710 mm

instead of 1700 mm.

C5HP05XD

296

AIR CONDITIONING SYSTEM R134.a

XANTIA - XUD

Checking the air conditioning circuit

Key

T = Temperature (C°) and High Pressure

(Bars).

P = Low pressure (Bars).

Te = Exterior temperature (C°).

HP = Pressure at compressor outlet (Bars).

Ta = Temperature of air blown from the

central air vents (C°).

BP = Pressure at compressor inlet (Bars).

C5HP122D

297

XM - All Types (Except V6 - 2.5 TD)

AIR CONDITIONING SYSTEM R134.a

C5HP12KC

(1) High pressure valve

(2) Low pressure valve

(3) Clickfit union.

C5HP12JD

298

XM - V6

AIR CONDITIONING SYSTEM R134.a

C5HP12EC

(1) High pressure valve

(2) Low pressure valve

(3) Clickfit union.

C5HP12HD

299

XM - 2.5 TD

AIR CONDITIONING SYSTEM R134.a

C5HP12KC

(1) High pressure valve

(2) Low pressure valve

(3) Clickfit union.

C5HP12LD

300

AIR CONDITIONING SYSTEM R134.a

XM - All Types

Checking the air conditioning circuit

Key

T = Temperature (C°) and High Pressure

(Bars).

P = Low pressure (Bars).

Te = Exterior temperature (C°).

HP = Pressure at compressor outlet (Bars).

Ta = Temperature of air blown from the

central air vents (C°).

BP = Pressure at compressor inlet (Bars).

C5HP068D

301

SYNERGIE - XU - EW10

AIR CONDITIONING SYSTEM R134.a

C5HP12EC

Tightening torques.

(1) High pressure valve

(2) Low pressure valve

(3) Pressostat, tighten to 1.8 m.daN

(4) Dryer

(5) Clickfit union

a

b

c

0.8 m.daN

4 m.daN

0.8 m.daN

C5HP15PP

302

AIR CONDITIONING SYSTEM R134.a

SYNERGIE - DW10

C5HP12EC

Tightening torques.

(1) High pressure valve

(2) Low pressure valve

(3) Clickfit union

(4) Pressostat, tighten to 1,8 m.daN

(5) Flange fixing, tighten to 0,8 m.daN.

(6) Flange fixing, tighten to 0,8 m.daN.

(7) Flange fixing, tighten to 4 m.daN.

C5HP15EP

303

AIR CONDITIONING for Your Citroen Xantia 4 Door Second Generation (1993-2002)

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