5040A20 AIR CONDITIONING COMPRESSOR - R+R - INCLUDES FLUID LEVEL CHECK AND TOP UP IF NECESSARY - Alfa - 159 - eLearn

939010911 - 5040A20 AIR CONDITIONING COMPRESSOR - R+R - INCLUDES FLUID LEVEL CHECK AND TOP UP IF NECESSARY

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Follow the safety instructions. Op. 5040 AIR CONDITIONING CASING AND COMPONENTS

- Position the vehicle on a lift.- Drain the coolant. Op. 0010T84 COOLANT FOR AIR CONDITIONING SYSTEM - DEHYDRATE AND REPRESSURIZE Op. 4450B04 RIGHT FRONT WHEEL - R.R Op. 7055B91 RIGHT FRONT WHEEL ARCH LINER - R.R. Op. 7055B66 ENGINE COMPARTMENT DUST COVER IN RIGHT FRONT WHEEL ARCH - R.R. 1. Apply wrench (1a) to the service belt tensioner grip (1b).2. Turn wrench (1a) in the arrowed direction (2a) and loosen service belt (2b), then disconnect the belt from compressor pulley (2c).

- Lower the vehicle.1. Undo the bolt (1a) and disconnect the connector (1b) from the compressor (1c).

Seal the connectors that have been disconnected using suitable plugs to prevent dampness and impurities from entering the system.

2. Disconnect the electrical connection.

Description	Component
AIR CONDITIONING COMPRESSOR ENGAGEMENT ELECTROMAGNET	See L020 AIR CONDITIONING COMPRESSOR ENGAGEMENT ELECTRO-MAGNET

3. Undo the compressor fixing bolts.4. Recover the compressor by raising.

- If the compressor is being replaced, proceed as follows.1. Drain the fluid from the compressor through the drainage opening (1a) after having removed the screw plug (1b) and throught the attachment openings for the pipe connectors (1c). If necessary, rotate the compressor several times manually, using the pulley to ensure that all of the fluid comes out.

The fluid is extremely hygroscopic: avoid leaving the containers open. Avoid leaving the compressor or any of the components disconnected from the system for any longer than is strictly necessary.

1. Collect the fluid drained from the compressor in a suitable transparent container (quantity A).2. Drain the fluid from the new compressor (quantity B) and collect it following the instructions given previously.3. Reintroduce a quantity of oil into the new compressor that corresponds to what was removed from the compressor being replaced (C=B-A).4. The fluid should be introduced into the compressor through the pressurizing/drainage opening- Tighten the screw cap to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
COMPRESSOR SCREW PLUG			1.0 ÷ 1.2

Refitting ( Removing

) - Check that the compressor is not damaged.1. Reposition the compressor.2. Screw in the compressor fixing bolts and tighten them to the specified torque.

Component	Fastening	dia	Value (daNm)	Validity
COMPRESSOR	Bolt	M8	2.2 ÷ 2.6

3. Connect the electrical connection for the compressor.

Replace the O rings for the connectors. Only use green coloured seals that are resistant to R134a coolant. Lubricate the connector threads using anti-freeze.

4. Connect the connector (4a) for the pipe to the condenser and secure it tightening the bolt (4b) to the recommended torque.

Component	Fastening	dia	Value (daNm)	Validity
COMPRESSOR PIPE CONNECTORS	Bolt	M8x30	1.8 ÷ 2.2

- Raise the vehicle.- Apply the wrench to the tensioner, loosen the service belt and connect to the compressor pulley. Op. 7055B66 ENGINE COMPARTMENT DUST COVER IN RIGHT FRONT WHEEL ARCH - R.R. Op. 7055B91 RIGHT FRONT WHEEL ARCH LINER - R.R. Op. 4450B04 RIGHT FRONT WHEEL - R.R - Lower the vehicle. - Repressurize the coolant. Op. 0010T84 COOLANT FOR AIR CONDITIONING SYSTEM - DEHYDRATE AND REPRESSURIZE - Remove the vehicle from the lift.