Remove/install AC pipe assembly

AR83.30-S-7800D

Remove/install AC pipe assembly

30.11.09

 

Remove/install



When working on the refrigerant circuit, seal all openings with suitable caps in order to prevent unnecessary penetration by air humidity and dirt.

All sealing rings must be replaced and moistened with compressor oil.

1

Discharge air conditioning system

 Installation: Refill air conditioning system and check for proper operation and check for leaks.

AR83.30-S-1760A

2

Remove front grille

AR88.00-S-2115A

3

Remove air ducting

4

Unscrew bolt (2)

5

Unscrew nut (4), route suction line (5) and high pressure line (14) out of expansion valve



*BA83.30-N-1001-01A

6

Remove suction line (5) from fluid reservoir (6)



*BA83.30-N-1003-01A

7

Detach connector (7) on pressure switch

8

Remove refrigerant line (8) at fluid reservoir (6)



*BA83.30-N-1003-01A

9

Unscrew mounting bolts (9) of refrigerant line (8, 10)

10

Remove refrigerant line (8) on condenser (11)



*BA83.30-N-1005-01A

11

Remove refrigerant line (10) from condenser (11)



*BA83.30-N-1004-01A

12

Unscrew bolt (12) of refrigerant line (10) on refrigerant compressor



*BA83.55-N-1005-01A

13

Remove refrigerant line (10) on refrigerant compressor



*BA83.55-N-1002-01A

14

Unscrew bolts (13) from bracket of high pressure line (14) to oil pan

Engine 111.950/980

*BA01.45-N-1001-01A

Engine 611.980

*BA01.45-N-1001-01H

 External torx set

*001589760900

15

Release clamp (15) for fastening high pressure line (14) on transmission

16

Remove high pressure line (14) on refrigerant compressor



*BA83.55-N-1002-01A

17

Replace fluid reservoir (6)

 The fluid reservoir must be replaced every time you open up the air conditioning.

AR83.30-S-6520A

 Observe oil refill quantity when replacing refrigerant lines.

*BF83.30-N-1006-01A

in event of line break

*BF83.30-N-1008-01A

18

Install in the reverse order



Checking

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury from crush injuries and burns if you place your hand into the engine when it is started or when it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

19

Check air conditioning for proper operation

 Run engine at idling speed for about 4 minutes and check all the component functions which are of relevance for proper operation of the air conditioning system.

Number

Designation

Engine
111.950/
980

BA01.45-N-1001-01A

Bolt, oil pan to cylinder crankcase

M6

Nm

10

M8

Nm

23

Number

Designation

Engine
611.980

BA01.45-N-1001-01H

Bolt, oil pan to cylinder crankcase

M6

Nm

9

M8

Nm

20

M10

Nm

-

Number

Designation

Model
638

BA83.30-N-1001-01A

Nut, suction and high pressure line to expansion valve

Nm

10

BA83.30-N-1003-01A

High pressure lines to fluid reservoir

Nm

17

BA83.30-N-1004-01A

High pressure line from AC compressor/condenser

Nm

35

BA83.30-N-1005-01A

High pressure line from condenser/fluid reservoir

Nm

17

Number

Designation

Model
638 with engine 611.980 with H06,
HH7

BA83.55-N-1002-01A

Bolt of suction and high pressure line to refrigerant compressor

Nm

23

BA83.55-N-1005-01A

Bolt, refrigerant compressor to timing case cover

Nm

-

Number

Designation

Model
638 with compressor 7SB16

BF83.30-N-1006-01A

Refill quantity of compressor oil when replacing a coolant line

cm3

20

Specifications for
Operating Fluids

Sheet

BB00.40-P-0362-00A

BF83.30-N-1008-01A

Compressor oil refill quantity when air conditioning system is suddenly evacuated (line break)

cm3

40

Specifications for
Operating Fluids

Sheet

BB00.40-P-0362-00A