Get AIR CONDITIONING -> Special features: air conditioning system (R 134.a) Guide for Citroen XM 4 Door Second Generation (1994-2000)

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

AIR CONDITIONING -> Special features: air conditioning system (R 134.a) for Your Citroen XM 4 Door Second Generation (1994-2000)

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