Page 3417 of 4133
Fig. 144: Air Conditioning (Tempmat ic) Test Of Electrical System Blending Air Flap Servo Motor GND
AIR CONDITIONING (TEMPMATIC) TEST OF ELECTRICAL SYSTEM REFRIGERANT COMPRESSOR ACTUATION -
AD83.30-P-6000-08GH
Fig. 145: Air Conditioning (Tempmat ic) Test Of Electrical System Refrigerant Compressor Actuation
AIR CONDITIONING (TEMPM ATIC) TEST OF ELECTRICAL SYSTEM REFRIGERANT PR ESSURE SENSOR - AD83.30-P-
6000-09GH
Fig. 146: Air Conditioning (Tempm atic) Test Of Electrical System Refrigerant Pressure Sensor
OUTSIDE AIR TEMPERATURE SENSOR, TESTING EL ECTRICAL SYSTEM OF TAC - AD83.30-P-6000-24GH
as of 1.12.99
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:17 PMPage 173 © 2006 Mitchell Repair Information Company, LLC.
Page 3418 of 4133

Fig. 147: Outside Air Temperature Sensor, Testing Electrical System Of TAC
AIR CONDITIONING (TEMPMATIC) ELECTRICAL SYSTEM TESTING - AD83.30-P-6000GH
MODEL 163 with CODE (580) Air conditioning or Tempmatic for USA
Air conditioning component
arrangement GF83.30-P-
0003-01GH
Overview of climate control wiring
diagrams PE83.00-P-
1100E
Connect hand-held tester (HHT), read
out diagnostic trouble code memoryModel 163 up to 31.8.01
Erase fault memory in control module
(N19) using HHT when testing is completeAD00.00-P-
2000-03C
Air conditioning (Tempmatic)
diagnosis previous knowledge AD83.30-P-
2000GH
Air conditioning (Tempmatic)
diagnosis function check The testing of the fresh air/recirculated
air flap actuator motor (M39) is carried out
during the function checkAD83.30-P-
3000GH
Testing
1
Circuit 15 power supply, air
conditioning (Tempmatic) electrical
system testing
AD83.30-P-
6000-01GH
2Circuit 31 ground, air conditioning
(Tempmatic) electrical system testing AD83.30-P-
6000-02GH
3
In-car temperature sensor, air
conditioning (Tempmatic) electrical
system testing
AD83.30-P-
6000-03GH
4
Anti-icing protection temperature
sensor, air conditioning (Tempmatic)
electrical system testing
AD83.30-P-
6000-04GH
5
Temperature selector wheel control
voltage Air conditioning (Tempmatic)
electrical system testing
AD83.30-P-
6000-05GH
6
Blending air flap servo motor control
voltage, air conditioning (Tempmatic)
electrical system testing
AD83.30-P-
6000-06GH
7Blending air flap actuator motor
ground, air conditioning (Tempmatic) AD83.30-P-
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:17 PMPage 174 © 2006 Mitchell Repair Information Company, LLC.
Page 3419 of 4133

TESTING & REPAIR
TESTING AND REPAIR WORK: PASSENGER CARS: CLIMATE CONTROL - AR83.00-Z-9163AA
MODEL 163
electrical system testing6000-07GH
8
Refrigerant compressor actuation, air
conditioning (Tempmatic) electrical
system testing
AD83.30-P-
6000-08GH
9
Refrigerant pressure sensor, air
conditioning (Tempmatic) electrical
system testing
AD83.30-P-
6000-09GH
10
Ambient temperature sensor, air
conditioning (Tempmatic) electrical
system testing
as of 01.12.99AD83.30-P-
6000-24GH
Remove/install center outlet flap
actuator motorMODEL 163...AR83.10-P-
2019GH
Removing and installing rear air
nozzleMODEL 163.113/154 /174 #A as of 289565, 163.113 #X
as of 754620, 163.128 /157 /175AR83.10-P-
4800GH
Remove, install switch unit for
heater/ ventilationMODELS 163.113/136/154/172/174 up to 31.8.01 with
CODE (580) air conditioning or Tempmatic for USAAR83.20-P-
1835GH
Remove and install heat
exchanger from heater housingMODEL 163AR83.20-P-
3400GH
Replace bulbs in push-button
control moduleMODELS 163.113/154/174/136/172 up to 31.8.01AR83.25-P-
1123GH
Remove and install series
resistor for heater blowerMODEL 163.113/128 /136 /154 /157 /172 /174 /175AR83.25-P-
1250GH
Remove/install cover at air
intakeMODEL 163.113/128 /136 /154 /157 /172 /174 /175AR83.25-P-
1405GH
Carry out quick test on air
conditioning systemMODEL 163, 901, 902, 903, 904 ...AR83.30-
D-1209A
Draining, evacuating and
refilling air conditioning,
checking function and checking
for leaks
MODEL 163...AR83.30-P-
1760GH
Remove/install defroster vent
flap actuator motor for
windshieldMODEL 163.113/154 /174 #A as of 289565, 163.113 #X
as of 754620, 163.128 /157 /175AR83.30-P-
2006GH
Remove/install footwell flap
actuator motorMODEL 163...AR83.30-P-
2007GH
Remove/install rear shutoff flap
actuator motorMODEL 163.113/154 /174 #A as of 289565, 163.113 #X
as of 754620, 163.128 /157 /175AR83.30-P-
2008GH
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
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Page 3420 of 4133

Remove/install fresh
air/recirculated air stepper motorMODEL 163...AR83.30-P-
2010GH
Removing and installing
blending air increment
adjustment motor
MODEL 163...AR83.30-P-
2020GH
Remove and install evaporator
housingMODEL 163...AR83.30-P-
5200GH
Disassembling, assembling A/C
housingMODEL 163 with CODE (580) Air conditioning or, in
USA, Tempmatic A/CAR83.30-P-
5201GH
Correcting oil level in air
conditioning following repair or
slow refrigerant loss
MODEL 163, 202, 208, 210, 215, 220 ...AR83.30-P-
5251E
Correcting oil level in air
conditioning after replacing
parts
MODEL 163, 202, 208, 210, 215, 220 ...AR83.30-P-
5252E
Correcting oil level in air
conditioning after system
suddenly loses all refrigerant
MODEL 163, 202, 208, 210, 215, 220 ...AR83.30-P-
5253E
Remove and install expansion
valveMODEL 163...AR83.30-P-
5520GH
Remove/install evaporatorMODEL 163 with CODE (580) Air conditioning or
Tempmatic for USAAR83.30-P-
5540GH
Remove/install air conditioning
blower motorMODEL 163...AR83.30-P-
5560GH
Remove/install blower motor in
rearMODEL 163.113/154 /174 #A as of 289565, 163.113 #X
as of 754620, 163.128 /157 /175AR83.30-P-
5565GH
Remove/install auxiliary fanMODEL 163.136 /154 /157 /172 with CODE (580) Air
conditioning or Tempmatic for USAAR83.30-P-
5600GH
Remove and install
receiver/drierMODELS 163.113/136 /154 /157 /172 /174 /175 with
CODE (580) Air conditioning or Tempmatic for USAAR83.30-P-
6520GH
Remove and install
receiver/drierMODEL 163.128AR83.30-P-
6520GI
Install/remove condenserMODEL 163...AR83.30-P-
6540GH
Remove, install air conditioning
control moduleMODELS 163.113/136/154/172/174 up to 31.8.01 with
CODE (580) air conditioning or Tempmatic for USAAR83.30-P-
6600GH
Remove and install evaporator
temperature sensorMODEL 163 with CODE (580) Air conditioning or
Tempmatic for USAAR83.30-P-
8085GH
Remove/install outside air
temperature sensorMODEL 163...AR83.30-P-
8086GH
Remove/install air outlet
temperature sensorMODEL 163...AR83.30-P-
8087GH
Remove/install air outlet
temperature sensorMODEL 163...AR83.30-P-
8087GI
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
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Page 3421 of 4133

Remove/install air outlet
temperature sensorMODEL 163...AR83.30-P-
8087GJ
Remove, install in-car
temperature sensor for aspirator
blower (M9)MODELS 163.113/136/154/172/174 as of 1.9.99 up to
31.8.01AR83.30-P-
8100GH
Remove/install switch
unit/automatic air conditioning
control moduleMODEL 163.113/154 /174 #A as of 289565, 163.113 #X
as of 754620, 163.128 /157 /175AR83.40-P-
6500GH
Remove and install sun sensorMODEL 163...AR83.40-P-
6720GH
Remove/install summer/winter
operation switchMODEL 163, 168, 170, 202, 208 ...AR83.70-P-
0001A
Removing, installing stationary
heater antennaMODEL 163.### 1# Retrofitted stationary heater with
Telestart T60AR83.70-P-
0002B
Remove/install stationary heater
antennaMODEL 163.### 1# Retrofitted stationary heater with
Telestart T70AR83.70-P-
0002BA
Remove/install Telestart
receiverMODEL 163, 168, 170, 202, 208, 210 ...AR83.70-P-
0003BA
Removing and installing
telestart receiverMODEL 163.### 1# Retrofitted telestart T60AR83.70-P-
0003H
Checking Telestart remote
controlMODEL 163, 168, 170, 202, 208, 210 Telestart T60AR83.70-P-
0005A
Check Telestart transmitterMODEL 163, 168, 170, 202, 203, 208, 209,
210,211,220,463...AR83.70-P-
0005IA
Check emission level, adjust if
necessaryMODEL 163, 168, 170, 202, 208, 210 ...AR83.70-P-
1177H
Remove/install heater unitMODELS 163.136/154/157/172/174/175 1# Retrofitted
Thermo Top C stationary heaterAR83.70-P-
5302I
Remove/install heaterMODEL 163.113 1# Retrofitted Thermo Top C stationary
heaterAR83.70-P-
5302IA
Remove/install heaterMODEL 163.128 Retrofitted Thermo Top C stationary
heaterAR83.70-P-
5302IB
Remove/install combustion air
blower unitMODEL 163, 168, 170, 202, 208, 210 ...AR83.70-P-
5555G
Removing and installing fuel
metering pumpMODEL 163.### 1# up to 31.12.99 Retrofitted Thermo
Top C stationary heaterAR83.70-P-
5652G
Remove/install coolant
circulation pumpMODEL 163.### (except 163.128) 1# Retrofitted
Thermo Top C stationary heaterAR83.70-P-
5700E
Remove/install burner insertMODEL 163, 168, 170, 202, 208, 210 ...AR83.70-P-
5772G
Remove/install burner insert
with glow pinMODEL 129, 163, 168, 170, 202, 203, 209, 210, 211,
215, 219, 220, 230, 240 ...AR83.70-P-
5773A
Remove/install timerMODEL 163, 168, 170, 202, 208 ...AR83.70-P-
5892D
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:17 PMPage 177 © 2006 Mitchell Repair Information Company, LLC.
Page 3422 of 4133

REMOVE/INSTALL CENTER OUTLET FLAP ACTUATOR MOTOR - AR83.10-P-2019GH
MODEL 163.113 #A as of 289565, 163.113 #X as of 754620, 163.154 /174 #A as of 289565, 163.128/157/175
Fig. 148: Identifying Center Outlet Flap Actuator Motor Components
REMOVING AND INSTALLING REAR AIR NOZZLE - AR83.10-P-4800GH
MODEL 163.113 /154 /174 #A as of 289565, 163.113 #X as of 754620, 163.128/157/175
Remove/install control
module/heat exchanger unitMODEL 163, 168, 170, 202, 208, 210 ...AR83.70-P-
5935G
Remove/install
1.1Remove instrument cluster Left-hand drive vehicle only.AR54.30-P-
6015GH
1.2Remove glove compartment Right-hand drive vehicle only.AR68.10-P-
1400GI
2Unscrew screws (1)
3Remove center outlet flap actuator
motor (M2/22) from air duct Installation: Adjust zero position of
actuator motor with STAR DIAGNOSIS.
4Disconnect connector
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 178 © 2006 Mitchell Repair Information Company, LLC.
Page 3423 of 4133
Fig. 149: Identifying Rear Air Nozzle Components
REMOVE, INSTALL SWITCH UNIT FOR HEATER/VENTILATION - AR83.20-P-1835GH
MODELS 163.113/136/154/172/174 up to 31.8.01 with CODE (580) air conditioning or Tempmatic for
USA
Remove/install
1Remove rear center console (1) AR68.20-P-2020GI
2Loosen retaining clamps (2) on the sides of the air nozzle (3)
3Remove air nozzle (3) from the rear center console
4Install in the reverse order
2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:18 PMPage 179 © 2006 Mitchell Repair Information Company, LLC.
Page 3424 of 4133
Fig. 150: Identifying Switch Unit For Heater/Ventilation Components
REMOVE AND INSTALL HEAT EXCHANGER FROM HEATER HOUSING - AR83.20-P-3400GH
MODEL 163
Remove/install
1Remove radio AR82.60-P-
7502EA
2Remove center part of instrument panel (1) AR68.10-P-
1030GH
3Unscrew bolts at heater/AC controls (4) and
remove controls
4Detach cable (2, 3) Unclip cables at
heater/AC controls.
5Disconnect connector (X72/3) at heater/AC
controls (4)
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 180 © 2006 Mitchell Repair Information Company, LLC.