5040A64 PIPE FROM EVAPORATOR TO DEHYDRATING FILTER/ACCUMULATOR - R+R - Alfa - 147 - eLearn

3025422 - 5040A64 pipe from evaporator to dehydrating filter/accumulator - r+r

Follow the safety instructions ( See subassembly 5040 AIR CONDITIONING CASING AND COMPONENTS ).

) Drain the coolant ( - 5040A10 Air conditioning refrigerant CIRCUIT - Draining and Refilling ). - 7055B54 under-engine guard - r r - 5040B14 air conditioner system multi-level pressure switch - r+r - 1008C10 power unit upper reaction link r r1. Undo the bolt fixing the pipe connector from the drier filter.2. Disconnect the connector from the drier filter.

Lower the vehicle.1. Undo the engine guard bolts.2. Undo the oil filler cap (2a) and remove the engine guard (2b), then retighten the oil filler cap.

1. Undo the nut for the intermediate coupling for the pipe from the evaporator to the compressor.2. Disconnect the coupling.

Seal the disconnected connectors, using suitable plugs, to prevent humidity and impurities from entering the system.

1. Slacken the band andn disconnect the power unit coolant pipe.2. Disconnect the electrical connections (2a (2b).

	Name	Connector
2a	Engine management ECU	M10B

	Name	Connector
2b	Front / engine coupling	D4

1. Disengage the fuel delivery pipe to the filter.2. Loosen the band and disconnect the diesel pipe.3. Withdraw the pipe (3a) from the retainer (3b).4. Unscrew the nuts.5. Move the mounting with diesel filter.6. Disconnect the electrical connections (6a, 6b).

	Name	Connector
6a	Diesel preheating resistor	O20

	Name	Connector
6b	Fuel temperature sensor	K81

1. Undo the nut securing the plug control unit.2. Move the plug control unit aside.3. Disconnect the electrical connections (3a, 3b).

	Name	Connector
3a	Plug preheating control unit	M15C

	Name	Connector
3b	Plug preheating control unit	M15A

1. Undo the bolt fixing the pipes to the evaporator.

1. Disconnect the two pipes from the retaining bands on the bodyshell.

1. Work at the bench and remove the pipe bands.2. Separate the pipe from the evaporator to the drier filter (2a) from the evaporator inlet pipe (2b) and recover the bush (2c).

Seal the disconnected connectors, using suitable plugs, to prevent humidity and impurities from entering the system.

Refitting ( Removing

) Check that the pipe is not damaged and that there are no cracks which would affect the seal.Join the pipe from the evaporator to the drier filter with the evaporator inlet pipe using the bush and the bands.

Replace the O-rings for the connectors.

Only use green coloured seals, resistant to R134A coolant fluid.

Lubricate the thread of the connectors using anti-freeze.

Position the pipes and connect them to the bodyshell using the retaining bands.Connect the connectors for the pipes to the evaporator and secure them using the bolt.

	Fastening	Component	Ø	Value(daNm)
-	Bolt	COOLANT SYSTEM FITTINGS	M6	0.9

Connect the electrical connections and position the plug control unit.Tighten the nut securing the plug control unit.Connect the electrical connections and position the mounting with diesel filter.Tighten the nuts on the mounting with diesel filter.Insert the pipe in the retainer.Connect the diesel pipe and secure it with the band.Engage the fuel supply pipe to the filter.Connect the electrical connections .Connect the power unit coolant pipe and secure it with the band.Connect the intermediate connector and secure it using the nut.

	Fastening	Component	Ø	Value(daNm)
-	Nut	COOLANT SYSTEM FITTINGS	M6	0.9

Undo the oil filler plug, position the engine guard and retighten the oil cap.Tighten the bolts securing the engine guard.Connect the connector to the drier filter and secure it using the bolt.

	Fastening	Component	Ø	Value(daNm)
-	Bolt	COOLANT SYSTEM FITTINGS	M6	0.9

- 1008C10 power unit upper reaction link r r - 5040B14 air conditioner system multi-level pressure switch - r+r - 7055B54 under-engine guard - r rRepressurize using coolant fluid ( - 5040A10 Air conditioning refrigerant CIRCUIT - Draining and Refilling ).