Page 3433 of 4133

Air conditioning system
Workshop equipment
REMOVE/INSTALL DEFROSTER VENT FLAP ACTUATOR MOTOR FOR WINDSHIELD - AR83.30-P-2006GH
MODEL 163.113 /154 /174 #A as of 289565, 163.113 #X as of 754620, 163.128/157/175
4evacuate
Filling
5Supplement oil for refrigerant
compressor The exact quantity determined when
drained must be used.
6Fill air conditioning system *BF83.30-P-
1001-01B
Testing
7Inspect air conditioning system for leaks
with leak detector *WE58.40-
Z-1002-20A
8
Risk of accident. Accidents may result if
the vehicle starts off unintentionally with
the engine running. Risk of injury from
bruises and burns if you hold your hand
near engine when it is started or when it
is running. Check function of air
conditioningSecure vehicle to prevent it from moving.
Wear closed and snug-fitting work clothes.
Do not grasp hot or rotating parts.
Run engine at idle speed for about 4
minutes and check all the component
functions which are of relevance for proper
operation of the air conditioning system.
AS00.00-Z-
0005-01A
NumberDesignationModel Series 163
BF83.30-P-1001-01BRefrigerantsFilling quantityg750
Specifications for Operating FluidsSheetBB00.40-P-0361-00A
WE58.40-Z-1002-20AAir conditioning leak detector
WE58.40-Z-1002-22AAir conditioning service station
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 189 © 2006 Mitchell Repair Information Company, LLC.
Page 3434 of 4133
Fig. 158: Identifying Components Of Defroster Vent Flap Actuator Motor For Windshield
REMOVE/INSTALL FOOTWELL FLAP ACTUATOR MOTOR - AR83.30-P-2007GH
Remove/install
1Remove cover below instrument
panel (left) AR68.10-P-
1500GH
2.1Remove electronic transmission
control (ETC) control module Only on models fitted with automatic
transmission.AR27.19-P-
1719GH
3
Disconnect interior and taillamp
wiring harness connector, cockpit
(X18)from bracket(1)
4Remove screws (2)
5Move bracket (1) downwards and
put to one side
6Disconnect plug (3)
7
Remove screws (4) on defroster vent
flap actuator motor (M2/8) from
heater housing
8Remove defroster vent flap actuator
motor (M2/8) Installation:Adjust defroster vent flap
actuator motor (M2/8) to the 0 position
using STAR DIAGNOSIS.
9Install in the reverse order
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 190 © 2006 Mitchell Repair Information Company, LLC.
Page 3435 of 4133
MODELS 163.113 #A as of 289565, 163.113 #X as of 754620, 163.154 /174 #A as of 289565,
163.128/157/175
Fig. 159: Identifying Footwell Flap Actuator Motor Components
Remove/install
1Remove cover below
instrument panel (left) AR68.10-P-
1500GH
2.1 Remove electronic
transmission control
(ETC) control module
Only on models fitted with
automatic transmission.AR27.19-P-
1719GH
3
Disconnect interior and
taillamp wiring harness
connector, cockpit(X18)from
bracket(1)
4Remove screws (2)
5Move bracket (1) downwards
and put to one side
6Disconnect connector (3)
7
Remove screws (4) on defroster
vent flap actuator motor
(M2/15) from heater housing
8
M2/15 Remove footwell flap
Installation: Adjust footwell
flap actuator motor (M2/15) to the
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 191 © 2006 Mitchell Repair Information Company, LLC.
Page 3436 of 4133
REMOVE/INSTALL REAR SHUTOFF FLAP ACTUATOR MOTOR - AR83.30-P-2008GH
MODEL 163.113 /154 /174 #A as of 289565, 163.113 #X as of 754620, 163.128/157/175
Fig. 160: Identifying Rear Shutoff Flap Actuator Motor Components
actuator motor0 position using STAR
DIAGNOSIS.
9Install in the reverse order
Remove/install
1Remove cover below
instrument panel (left) AR68.10-P-
1500GH
2.1 Remove electronic
transmission control
(ETC) control module
Only on models fitted with
automatic transmission.AR27.19-P-
1719GH
3
Disconnect interior and taillamp
wiring harness connector,
cockpit(X18)from bracket(1)
4Remove screws (2)
5Move bracket (1) downwards
and put to one side
6Disconnect plug (3)
Remove screws (4) on rear
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 192 © 2006 Mitchell Repair Information Company, LLC.
Page 3437 of 4133
REMOVE/INSTALL FRESH AIR/RECIRCULATED AIR STEPPER MOTOR - AR83.30-P-2010GH
MODEL 163.113 /128 /136 /154 /157 /172 /174 /175 with CODE (580) Air conditioning or Tempmatic for
USA
Shown on model 163 up to VIN A289564, X754619
Fig. 161: Identifying Fresh Air/Recirculated Air Stepper Motor Components (Shown On Model 163 Up
To VIN A289564, X754619)
7shutoff flap actuator motor
(M2/12) from heater housing
8Remove rear shutoff flap
actuator motor (M2/12)
Installation: Adjust rear
shutoff flap actuator motor
(M2/12)to 0 position using STAR
DIAGNOSIS.
9Install in the reverse order
Remove/install
1Remove instrument panel AR68.10-P-
1000GH
2Remove front passenger airbag unit AR91.60-P-
0680GH
Disconnect connector (4) from recirculated
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 193 © 2006 Mitchell Repair Information Company, LLC.
Page 3438 of 4133
REMOVING AND INSTALLING BLENDING AIR INCREMENT ADJUSTMENT MOTOR - AR83.30-P-2020GH
MODEL 163.113 /128 /136 /154 /157 /172 /174 /175 with CODE (580) Air conditioning or Tempmatic for
USA
Shown on model 163 up to VIN A289564, X754619
Fig. 162: Identifying Blending Air Increment Adjustment Motor Components (Shown On Model 163 Up
To VIN A289564, X754619)
3air flap actuator motor (M39)
4Unscrew screws (3) from recirculated air
flap actuator motor (M39) 3 screws are fitted as of
VIN A289565 X754620.
5Detach recirculated air flap actuator motor
(M39)from AC housing (1)
6Install in the reverse order
Remove/install
1Remove instrument panel AR68.10-P-
1000GH
2Disconnect connector (4) from blend air
flap actuator (M16/8)
3Unscrew screws (3) from blend air flap
screws are fitted as of VIN
A289565 X754620.
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 194 © 2006 Mitchell Repair Information Company, LLC.
Page 3439 of 4133
REMOVE AND INSTALL EVAPORATOR HOUSING - AR83.30-P-5200GH
MODELS 163.113 /128 /136 /154 /157 /172 /174 /175 with CODE (580) Air conditioning or Tempmatic for
USA
Fig. 163: Identifying Evaporator Housing Components (1 Of 2)
actuator (M16/8)
4Detach blend air flap actuator (M16/8)
from AC housing (1)
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 195 © 2006 Mitchell Repair Information Company, LLC.
Page 3440 of 4133

Fig. 164: Identifying Evaporator Housing Components (2 Of 2)
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
Risk of injury to skin and eyes
suffering scalding from contact
with hot coolant spray. Risk of
Do not open cooling system unless
coolant temperature is below 90°C. Open
cap slowly and release the pressure. Do
not pour coolant into beverage bottles.
AS20.00-Z-
0001-01A
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 196 © 2006 Mitchell Repair Information Company, LLC.