Mercedes-Benz ML320. Service manual — part 706

Fig. 170: Identifying Auxiliary Fan Components

REMOVE AND INSTALL RECEIVER/DRIER - AR83.30-P-6520GH

MODELS 163.113/136/ /154 /157 /172 /174 /175 with CODE (580) Air conditioning or Tempmatic for
USA

Remove/install

1

Remove upper frame cross member
(1)

AR62.30-P-
2300GH

2

Unscrew bolts (2) for auxiliary fan
(M4) at radiator

3

Disconnect additional fan connector
(M4x1)

4

Unclip electric cable for outside
temperature sensor at auxiliary fan
(M4)

5

Pull out auxiliary fan (M4) upward

Installation: Insert additional fan in

the lower guides first pay attention to
correct seating.

6

Install in the reverse order

2001 Mercedes-Benz ML320

1998-2005 HVAC Climate Control - 163 Chassis

me

Fig. 171: Identifying Receiver/Drier Components

Remove/install

Risk of explosion from welding or
soldering work on closed air
conditioning system. Risk of
poisoning. Inhaling overheated
refrigerant vapors may be toxic. Risk
of injury from skin and eye contact
with liquid refrigerant.

Do not carry out any welding work on the
closed air conditioning system or in the
surrounding area. No smoking or open
flames. Wear eye protection 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

Procedures 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 All models fitted with air conditioning

AH83.30-
N-0003-
01A

1

Remove upper frame cross member

AR62.30-P-
2300GH

2.1

Remove charge air cooler

On Model 163.113 only.

AR09.41-P-
6817MM

2001 Mercedes-Benz ML320

1998-2005 HVAC Climate Control - 163 Chassis

me

Air conditioning system

Refrigerant compressor

Fig. 172: Identifying External Torx Set (001 589 76 09 00)

3.1

Remove mass air flow sensor on left
behind the charge air cooler

On Model 163.113 only: between the air

hose of the charge air cooler and engine.

4

Discharge air conditioning system

Installation: Evacuate air conditioning,

refill and check for proper operation and
leaktightness.

AR83.30-P-
1760GH

5

Unscrew screw (3) for refrigerant
line (6) to the expansion valve and
screw (4) for refrigerant line (5) from
the condenser at the fluid reservoir
(8)

*BA83.30-
P-1001-01B

6

Remove refrigerant line (5) from
condenser and refrigerant line (6) to
the expansion valve at the fluid
reservoir (8)

Installation: Install new sealing rings

and moisten with compressor oil.

7

Release external Torx drive bolt (7)
at fluid reservoir clamp

External torx set

Fig. 172

8

Remove fluid reservoir (8)

Installation: Note additional oil filling

capacity when replacing the fluid reservoir.

*BF83.55-
P-1005-
01A

9

Install in the reverse order

Number

Designation

Model Series 163

BA83.30-P-1001-01B Hexagon bolt securing refrigerant line to fluid reservoir

NM 10

Number

Designation

Refrigerant
compressor 7SB16,
refrigerant R134a
in model 163

BF83.55-P-1005-
01A

Additional oil filling
capacity when
replacing fluid
reservoir

Compressor oil

cm

3

10

Specifications for
Operating Fluids

Sheet BB00.40-P-0362-

00A

2001 Mercedes-Benz ML320

1998-2005 HVAC Climate Control - 163 Chassis

me

INSTALL/REMOVE CONDENSER - AR83.30-P-6540GH

MODELS 163.113 /128 /136 /154 /157 /172 /174 /175 with CODE (580) Air conditioning or Tempmatic for
USA

Illustrated on model 163.154

Fig. 173: Identifying Condenser Components

Remove/Install

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 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

2001 Mercedes-Benz ML320

1998-2005 HVAC Climate Control - 163 Chassis

me