Page 3449 of 4133

A/C compressor
A/C compressor
REMOVE AND INSTALL EXPANSION VALVE - AR83.30-P-5520GH
MODELS 163.113 /128 /136 /154 /157 /172 /174 /175 with CODE (580) Air conditioning or Tempmatic for
USA
Carry out work quickly, compressor oil is hygroscopic
When evacuating refrigerant, the quantity of compressor oil evacuated
must be added again to refrigerant circuit when refilling air
conditioning (new oil)
1Replace defective component and fluid reservoirModels 202,
208, 210AR83.30-P-
6520E
Model 163AR83.30-P-
6520GH
Model 215,
220AR83.30-P-
6520M
2Additionally fill new compressor oil to specified oil capacity *BF83.55-P-
1002-01A
NumberDesignationA/C
compressor
7SB16
Refrigerant
R134a in
model 163A/C
compressor
7SB16 in
models 140,
170,202,208,
210A/C
compressor
ND6CA17 in
model 202
F83.55-P-
1002-01AAdditional oil
capacity after
sudden
emptying of
system (e.g.
ruptured line)Compressor oilcm3404040
Specifications
for service
productsSheetBB00.40-P-
0362-00ABB00.40-P-
0362-00ABB00.40-P-
0362-00A
NumberDesignationA/C compressor
7SE16 in model
215A/C compressor
7SE16 in model
220
BF83.55-P-
1002-01AAdditional oil
capacity after
sudden emptying
of system (e.g.
ruptured line)Compressor oilcm35050
Specifications for
service productsSheetBB00.40-P-
0362-00ABB00.40-P-
0362-00A
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 205 © 2006 Mitchell Repair Information Company, LLC.
Page 3450 of 4133

Fig. 166: Identifying Expansion Valve 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 leakingAll 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 R134aAll models fitted with air conditioning
AH83.30-
N-0003-
01A
1Discharge air conditioning system Installation: Evacuate air conditioning, refill
and check for proper operation and leaktightness.AR83.30-P-
1760GH
2Unscrew expansion reservoir nuts (1) Lay compensating reservoir to one side.
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 206 © 2006 Mitchell Repair Information Company, LLC.
Page 3451 of 4133
Air conditioning system
REMOVE/INSTALL EVAPORATOR - AR83.30-P-5540GH
MODEL 163 with CODE (580) Air conditioning or Tempmatic for USA
Fig. 167: Identifying Evaporator Temperature Sensor Components
3Detach piping bracket (4) from
expansion valve (6) Installation: Install new self-locking nut (3).
*BA83.30-
P-1003-01B
4Detach piping fastening clamps (5)
from firewall
5Pull both pipes out of the expansion
valve (6) Press pipes to the side.
6Unscrew bolts (7) from expansion
valve (6) *BA83.30-
P-1004-01B
7Remove expansion valve (6) Installation: Install new sealing rings and
moisten with compressor oil.
8Install in the reverse order
NumberDesignationModel Series 163
BA83.30-P-1003-01BNut to pipeline on expansion valveNM10
BA83.30-P-1004-01BBolt, expansion valve to evaporator coreNM10
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 207 © 2006 Mitchell Repair Information Company, LLC.
Page 3452 of 4133

Refrigerant compressor
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. Contact with liquid
refrigerant may result in injury to the
skin and eyes.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 leakingAll 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 R134aAll models fitted with air conditioning
AH83.30-
N-0003-
01A
1Remove evaporator housing AR83.30-
P-5200GH
2Remove expansion valve
Installation: Replace sealing rings
between the expansion valve and
evaporator and moisten with compressor
oil.
AR83.30-
P-5520GH
3Disassemble AC housing AR83.30-
P-5201GH
4Remove evaporator (1) from AC
housing Observe oil filling capacity when
replacing the evaporator.
*BF83.55-
P-1004-
01A
5Remove evaporator temperature sensor
(B10/6) AR83.30-
P-8085GH
6Install in the reverse order
NumberDesignationRefrigerant
compressor 7SB16,
refrigerant R134a
in model 163
BF83.55-P-1004-
01AAdditional oil filling
capacity when
replacing evaporatorCompressor oilcm3 40
Specifications for
Service ProductsSheetBB00.40-P-0362-
00A
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 208 © 2006 Mitchell Repair Information Company, LLC.
Page 3453 of 4133
REMOVE/INSTALL AIR CONDITIONING BLOWER MOTOR - AR83.30-P-5560GH
MODEL 163.113 /128 /136 /154 /157 /172 /174 /175 with CODE (580) Air conditioning or Tempmatic for
USA
Fig. 168: Identifying Air Conditioning Blower Motor Components
REMOVE/INSTALL BLOWER MOTOR IN REAR - AR83.30-P-5565GH
MODEL 163.113 /154 /174 #A as of 289565, 163.113 #X as of 754620, 163.128/157/175
Remove/Install
1Remove cover (1) under the instrument
panel (right) Up to VIN A145272,
X708318.AR68.10-P-
1520GH
As of VIN A145273,
X708319.AR68.10-P-
1520GI
2Unscrew bolt (2) from blower motor (M2)
3Disconnect connector from blower motor
(M2)
4Remove blower motor (M2) from AC
housing (3)
5Install in the reverse order
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 209 © 2006 Mitchell Repair Information Company, LLC.
Page 3454 of 4133
Fig. 169: Identifying Rear Blower Motor Components
REMOVE/INSTALL AUXILIARY FAN - AR83.30-P-5600GH
MODEL 163.136 /154 /157 /172 with CODE (580) Air conditioning or Tempmatic for USA
Remove/install
1Remove center console AR68.20-P-
2000GH
2Disconnect rear blower
motor connector (1, 2)
3Remove screws (3)
4Pull out rear blower motor
(M2/1) to the rear Installation: Ensure that the rear blower
motor (M2/1) is connected to the air duct
correctly (4).
5Install in the reverse order
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 210 © 2006 Mitchell Repair Information Company, LLC.
Page 3455 of 4133
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
1Remove upper frame cross member
(1) AR62.30-P-
2300GH
2Unscrew bolts (2) for auxiliary fan
(M4) at radiator
3Disconnect additional fan connector
(M4x1)
4
Unclip electric cable for outside
temperature sensor at auxiliary fan
(M4)
5Pull out auxiliary fan (M4) upward
Installation: Insert additional fan in
the lower guides first pay attention to
correct seating.
6Install in the reverse order
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 211 © 2006 Mitchell Repair Information Company, LLC.
Page 3456 of 4133

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 leakingAll 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 R134aAll models fitted with air conditioning
AH83.30-
N-0003-
01A
1Remove upper frame cross member AR62.30-P-
2300GH
2.1Remove charge air cooler On Model 163.113 only.AR09.41-P-
6817MM
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 212 © 2006 Mitchell Repair Information Company, LLC.