Remove/install refrigerant lines to evaporator unit of rear air conditioning

AR83.50-D-6940HK

Remove/install refrigerant lines to evaporator unit of rear air conditioning

8.12.05

 

Remove/install

 Danger!

Risk of explosion from welding or soldering work on closed air conditioning system. Risk of poisoning from 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 discharged.

AS83.00-Z-0001-01A



Conduct if air conditioning system is damaged or leaking

All models

AH83.30-N-0004-01A



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

All models fitted with air conditioning

AH83.30-N-0005-01A



Notes on handling refrigerant R134a

Air conditioning with refrigerant R134a

AH83.30-N-0003-01A

1

Discharge air conditioning system

AR83.30-D-1760A

2

Remove evaporator unit paneling

AR83.50-D-5010NA

3

Remove bituminous insulating tape (1)

 Installation: Carefully attach new bituminous insulating tape (1).

*BR00.45-Z-1062-01A

4

Detach line connectors (2)

 Plug openings

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



*BA83.50-N-1005-01C



*BA83.50-N-1006-01C



*129589009100



Compressor oils

BB00.40-P-0362-00A

5

Unscrew union nuts (4).

 Plug openings

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



*BA83.50-N-1001-01C



*129589009100



Compressor oils

BB00.40-P-0362-00A

6

Remove suction-side refrigerant line (N) and thrust-side refrigerant line (7) on expansion valve (9)

 Plug openings

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



*BA83.50-N-1002-01C



*129589009100



Compressor oils

BB00.40-P-0362-00A

7

Detach line holder (3)

8

Remove thrust-side refrigerant line (M) and suction-side refrigerant line (N)

9

Install in the reverse order

 Only install evaporator unit paneling after the air conditioning has been filled and checked.

10

Replace fluid reservoir

 The filter drier is integrated into the fluid reservoir.

AR83.30-D-6520NA

11

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

AR83.30-D-1760A



*BF83.30-N-1009-01A



*BF83.30-N-1011-01A

Number

Designation

Model
903.672
with code HK2

BA83.50-N-1001-01C

Refrigerant line to solenoid valve

Nm

16

BA83.50-N-1002-01C

Bolt, refrigerant lines to evaporator unit expansion valve

Nm

10

BA83.50-N-1005-01C

Line connection, thrust side refrigerant lines

Nm

16

BA83.50-N-1006-01C

Line connection, intake side refrigerant lines

Nm

30

Number

Designation

Model
903.672 with code HK2

BF83.30-N-1009-01A

Total filling capacity, refrigerant

kg

1,85

Specifications for Operating Fluids

Sheet

BB00.40-P-0361-00A

BF83.30-N-1011-01A

Total filling capacity for compressor oil of air conditioning system
(including refrigerant compressor)

cm3

250

Specifications for Operating Fluids

Sheet

BB00.40-P-0362-00A

Number

Designation

Order number

BR00.45-Z-1062-01A

Insulation

A 901 831 13 96