Remove/install desiccant cartridge

AR83.30-P-6521MSB

Remove/install desiccant cartridge

02.07.2019

Model

257 with engine 264

1a

Engine air intake duct

1e

Bolts

1m

Bolts

1b

Cold air intake

1f

Screw

1n

Rivets

1c

Insert fasteners

1g

Bolts

1o

Support

1d

Bolts

1i

Cross member

3

Plug

8

Drier module bracket

4

Retaining ring

9

Drier module riser line

5

Bolt M12

10

Drier module filter housing

6

Drier head

11

Desiccant bag

7

Pin

 Danger

Risk of fire due to ignition of R1234yf refrigerant on hot components. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures

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 rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.

AS83.00-Z-0007-01A

 Warning

Risk of poisoning caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts

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 rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.

AS83.00-Z-0006-01A

Topical note

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

AH83.30-N-0005-01A

Notes on handling refrigerant R134a

AH83.30-N-0003-01A

Notes on handling refrigerant R1234yf

AH83.30-P-0003-02A

 

Remove/install

1

Discharge air conditioning system.

AR83.30-P-1760FR

2

Remove engine air intake duct (1a).

 Dismantling tool

*000589956300

3

Remove cold air intake (1b).

 Dismantling tool

*000589956300

4

Remove insert fasteners (1c).

5

Unscrew screws (1d, 1e, 1f, 1g).

 Bolt, strut to cross member

*BA62.30-P-1003-01H

 Bolt, lock striker to cross member/front-module carrier

*BA62.30-P-1008-01H

6

Drill out rivets (1n).

 Installation: Replace rivets (1n).

 Commercially available devices/tools
drill
riveter

 Remove drilling chips.

7

Unscrew screws (1m).

8

Remove left and right support (1o).

9

Remove crossmember (1i).

10

Remove plug (3).

 Plug to condenser

*BA83.30-P-1008-01R

11

Remove circlip (4).

12

Screw M12 screw (5) into drier head (6) and pull out drier head (6).

13

Remove drier module holder (8) at pin (7) using suitable pliers.

14

Remove drier module riser line(9) together with drier module filter housing(10).

 Installation: If the packaging of a new desiccant bag(11) is damaged, do not install it.
Apply new desiccant bag (11) on drier module riser line (9).

15

Install in the reverse order.

 Cross member and front reinforcement

Number

Designation

Model 257

BA62.30-P-1003-01H

Bolt, strut to cross member

M8

Nm

20

 Cross member and front reinforcement

Number

Designation

Model 257

BA62.30-P-1008-01H

Bolt, lock striker to cross member/front-module carrier

Nm

10

 Air conditioning

Number

Designation

Model 257

BA83.30-P-1008-01R

Plug to condenser

Nm

4