Remove/install expansion valve for passenger compartment air conditioning

AR83.50-M-6300A

Remove/install expansion valve for passenger compartment air conditioning

02.07.2019

Model

903.663

Minibus Sprinter Group, with rear air conditioning system SC1-9

Model

903.663

Minibus Sprinter Group, with rear air conditioning system SC4-10

Model

904.663

Minibus Sprinter Classic, with rear air conditioning system SC2-10

Model

904.663

Minibus Sprinter Classic, with rear air conditioning system SC3-11 with additional condenser

Model

904.663

Minibus Sprinter Eco, with rear air conditioning system SC1-9

Model

904.663

Minibus Sprinter Group, with rear air conditioning system SC1-9

Model

904.663

Minibus Sprinter Group, with rear air conditioning system SC4-10

Model

904.663

Minibus Sprinter low floor, with rear air conditioning system SC2-10

Model

904.663

Minibus Sprinter low floor, with rear air conditioning system SC3-11 with additional condenser

Model

904.663

Minibus Sprinter Tourist, with rear air conditioning system SC3-10

Model

904.663

Minibus Sprinter Tourist, with rear air conditioning system SC5-10

Model

905.613

Minibus Sprinter Classic 6 t, with rear air conditioning system SC3-11 with additional condenser

Model

905.613

Minibus Sprinter low-floor 6 t, with rear air conditioning system SC3-11 with additional condenser

1

Bitumen insulation tape

4

Union nut

7

Union nut

2

Refrigerant line pressure side

5

Refrigerant pressure capillary

8

Mounting clamp

3

Expansion valve

6

Temperature sensor

 

Remove/install

 Danger

Risk of explosion caused by welding or soldering work on closed air conditioning system. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with liquid refrigerant.

Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been drained.

AS83.00-Z-0001-01A

Topical note

Protect air conditioning circuit and components from moisture when carrying out repair work

AH83.30-N-0005-01A

Topical note

Procedure for a damaged or leaky air conditioning system

AH83.30-N-0004-01A

Notes on handling refrigerant R134a

AH83.30-N-0003-01A

1

Drain air conditioning system

AR83.30-M-1760A

2

Remove evaporator unit trim

AR83.50-M-5010A

3

Remove bitumen insulation tape (1) in area of expansion valve (3)

 Installation: Wrap area around expansion valve (3), low-pressure switch and the evaporator pipe lines carefully with new bitumen insulation tape (1).

Insulation

*BR00.45-Z-1062-01A

4

Unscrew union nuts (4) and remove capillary (5)



BB00.40-P-0362-00A

 Plug openings.

 Installation: Install new sealing rings. Coat sealing rings with compressor oil before installation.

 Nut, connection for refrigerant pressure capillary tube

*BA83.50-N-1007-01E

 Record plug

*129589009100

5

Unscrew pressure-side refrigerant line (2) from expansion valve (3)



BB00.40-P-0362-00A

 Plug openings.

 Installation: Replace seal. Coat sealing ring with compressor oil before installation.

 Connector for refrigerant lines

*BA83.50-N-1001-01E

 Record plug

*129589009100

6

Remove mounting clamp (8) from temperature sensor (6)

 Installation: The temperature sensor (6) must be attached to the upper side of the evaporator pipe.

7

Unscrew union nut (7) and remove expansion valve (3)



BB00.40-P-0362-00A

 Plug openings.

 Installation: Replace seal. Coat sealing ring with compressor oil before installation.

 Connector for refrigerant lines

*BA83.50-N-1001-01E

 Record plug

*129589009100

8

Install in the reverse order

 Only attach evaporator unit paneling after the air conditioning has been topped up and checked.

9

Replace air conditioning system filter drier

AR83.30-M-6525A

10

Evacuate air conditioning system, charge it, and then check system to make sure that it functions correctly and does not leak

AR83.30-M-1760A

 Rear air conditioning

Number

Designation

MODEL 903.663 with A/C SC1-9, SC4-10

MODEL 904.663, with SC1-9, SC2-10, SC3-10, SC4-10, air conditioning SC5-10

BA83.50-N-1001-01E

Connector for refrigerant lines

Thrust side

Nm

35

35

Intake side

Nm

35

35

 Rear air conditioning

Number

Designation

MODEL 904.663, 905.613, with SC3-11 air conditioning with auxiliary condenser

MODEL 904.663, 905.613, with roof air conditioning, Sütrak AC 111

BA83.50-N-1001-01E

Connector for refrigerant lines

Thrust side

Nm

35

35

Intake side

Nm

35

35

 Rear air conditioning

Number

Designation

MODEL 905.613 with Hispacold roof air conditioning D5

BA83.50-N-1001-01E

Connector for refrigerant lines

Thrust side

Nm

45

Intake side

Nm

45

 Rear air conditioning

Number

Designation

MODEL 903.663 with A/C SC1-9, SC4-10

MODEL 904.663, with SC1-9, SC2-10, SC3-10, SC4-10, air conditioning SC5-10

BA83.50-N-1007-01E

Nut, connection for refrigerant pressure capillary tube

Nm

10

10

 Rear air conditioning

Number

Designation

MODEL 904.663, 905.613, with SC3-11 air conditioning with auxiliary condenser

MODEL 904.663, 905.613, with roof air conditioning, Sütrak AC 111

BA83.50-N-1007-01E

Nut, connection for refrigerant pressure capillary tube

Nm

10

10

 Rear air conditioning

Number

Designation

MODEL 905.613 with Hispacold roof air conditioning D5

BA83.50-N-1007-01E

Nut, connection for refrigerant pressure capillary tube

Nm

–

Repair materials

Number

Designation

Order number

BR00.45-Z-1062-01A

Insulation

A 901 831 13 96