center console MERCEDES-BENZ ML350 1997 Complete Repair Manual

Fig. 4: Identifying Air Duct (Up To 31.08.01)
AIR DUCT LOCATIONS - GF83.10-P-2101-01GI
The lateral nozzle and side window defroster nozzle (3) air ducts are on the left and right below the instrument
panel.
The windshield defroster nozzle air duct (2) is on top of the evaporator housing (front center) below the
instrument panel.
The center nozzle air duct (1) is on top of the evaporator housing behind the center nozzle.
The front footwell air duct (4) is integrated in the heater/evaporator housing.
The rear compartment air duct (5) is located below the center console.
The rear footwell air duct (6) is at the bottom next to the rear blower behind the center console.

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:14 PMPage 11 © 2006 Mitchell Repair Information Company, LLC.

CENTER NOZZLE, LOCA TION - GF83.10-P-2107-02GH
The center nozzle (1) is located above the center console in the instrument panel.
Fig. 12: Identifying Center Nozzle

SIDE NOZZLE, FUNCTI ON - GF83.10-P-2108-01GH
Function
The side nozzle (3) can be adjusted infinitely or opened and closed completely with the dial.
The air exit direction can be adjusted upward, downward, to the left, to the right or middle as desired with the
louver system.
Heated/cooled air exits th rough the side nozzle (3).
Fig. 13: Identifying Side Nozzle

SIDE NOZZLE, LOCATI ON - GF83.10-P-2108-02GH

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
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Saturday, October 02, 2010 3:23:14 PMPage 17 © 2006 Mitchell Repair Information Company, LLC.

Fig. 25: Identifying Rear Nozzle
SERIES RESISTOR GROUP, LOCATION/TASK/FUNCTION - GF83.10-P-2161GC
MODEL 163 up to 31.8.01, 168
Rear nozzle
positionThe rear nozzle (1) is located at the rear center console.
Rear nozzle
taskThe rear compartment nozzle provides specific rear compartment
ventilation in addition to the rear footwell air vents.
Rear nozzle
function GF83.10-P-
2111-01GI
Series resistor group,
positionModel 168GF83.10-P-2124-
01GC
Model 163GF83.10-P-2124-
01GH
Series resistor
assembly taskThe series resistor assembly controls the blower voltage
depending on the relevant blower level setting.
Series resistor
assembly functionModel 168 up to 28.02.01GF83.10-P-2124-
02GC
Model 168 as of 01.03.01GF83.10-P-2124-
02GH
Model 163GF83.10-P-2124-

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:15 PMPage 31 © 2006 Mitchell Repair Information Company, LLC.

REAR BLOWER MOTOR, FU NCTION - GF83.10-P-2168-01GI
Function
The rear blower motor (M2/1) is actuated using the bl ower button ( ) on the rear ventilation control panel
(N72/2s3).
Pressing the blower button ( ) passes a control voltage to the rear blower motor (M2/1) via the electronic
rear ventilation blower regulat or (N29/2). This facilitates blower speed control of 0-100 %.
Automatic mode function
Pressing the Auto button ( ) on the rear ventilation control panel (N72/2s3) causes the rear blower motor to
be regulated by the AAC push- button control module (N22).
REAR BLOWER MOTOR, PO SITION/TASK/DESIGN/FUNCTION - GF83.10-P-2168GI
MODEL 163 as of 1.9.01 with CODE (580a) Automatic air conditioning
Fig. 26: Identifying Rear Blower Motor

02GD
Blower,
locationThe rear blower motor (M2/1) is located behind the rear nozzle below
the center console.

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:15 PMPage 32 © 2006 Mitchell Repair Information Company, LLC.

REAR ELECTRONIC BLOWER REGULATOR, LOCATION/TASK/FUNCTION - GF83.10-P-2176GI
Model 163 as of 1.9.01 with code (580a) Automatic air conditioning
Fig. 32: Identifying Rear Electronic Blower Regulator

HEATER FUNCTION - GF83.20-P-0002GH
MODEL 163 up to 31.8.01
Function
The heater enables a pleasant interior climate for the vehicle passengers in the event of different weather
conditions.
A nominal temperature is preset at the heater push-button control module temperature selector wheel. This
setting is transmitted to the blending air flaps in the heater housing via a cable and an actuation mechanism.
Rear electronic blower
regulator, locationThe rear electronic blower regulator (N29/2) is located behind
the rear nozzle below the center console.
Rear electronic blower
regulator, taskThe rear electronic blower regulator (N29/2) controls the rear
blower motor (M2/1) voltage supply depending on the relevant
blower level setting.

Rear electronic blower
regulator, function GF83.10-P-
2176-01GI

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:15 PMPage 41 © 2006 Mitchell Repair Information Company, LLC.

Fig. 56: Identifying Blower Switch, Temperature Selector Wheel And Air Distribution Switch
AIR CONDITIONING CONTROL MODULE, LOCATION - GF83.30-P-2102-02GH
The AC control module (N19) is located behind the center console to the left of the evaporator housing.
Fig. 57: Identifying AC Control Module

Blower switch, location/task/design/function GF83.25-P-2100GC
Air distribution switch, location/task/design/ function GF83.25-P-2101GH
Temperature selector wheel, location/task/ design/function GF83.25-P-2102GC
Air recirculation switch, location/task/design/ function GF83.10-P-2117GH
AC button, location/task/function GF83.30-P-2103GH
AC control module location/task/function GF83.30-P-2102GH
All-activity module, location/task/function GF54.21-P-4110GH

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:15 PMPage 66 © 2006 Mitchell Repair Information Company, LLC.

IN-CAR TEMPERATURE SENSOR WITH ASPIRATOR BLOWER, LOCATION - GF83.57-P-2100-01GH
The in-car temperature sensor (B10/4) is located on the center console on the left next to the radio. The aspirator
blower (M9) associated with the in-car temperature sensor is located at the bottom left on the evaporator
housing.
Fig. 118: Identifying In
-Car Temperature Sensor
IN-CAR TEMPERATURE SENSOR WITH ASPIRATOR BLOWER FUNCTION - GF83.57-P-2100-02GH
Function
location/task/function2117GI
Rear air stream temperature sensor, location/ task/function GF83.57-P-
2118GI
Defroster protection temperature sensor, location/task/function GF83.57-P-
2113GH
Blending air flap actuator, location / task / function GF83.57-P-
2112GI
Outside temperature indicator temperature sensor,
location/task/function GF83.57-P-
2119GI
Sun sensor position/task/function GF83.57-P-
2111GI
Electric heater booster position/task/design/ function Engine
612.963GF83.70-P-
4054GH

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
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Saturday, October 02, 2010 3:23:17 PMPage 140 © 2006 Mitchell Repair Information Company, LLC.

MODEL 163 up to 31.8.01 with CODE (580) Air conditioning or Tempmatic for USA
MODEL 163 as of 1.9.01 with CODE (580a) Automatic air conditioning
IN-CAR TEMPERATURE SENSOR, LOCATION - GF83.57-P-2115-01GH
The in-car temperature sensor (B10/4) with suction jet nozzle is located on the left of the center console next to
the radio.
Fig. 124: Identifying In
-Car Temperature Sensor
IN-CAR TEMPERATURE SENSOR, FUNCTION - GF83.57-P-2115-02GH
Function
When the blower is running, air is constantly drawn out of the vehicle interior by a suction jet nozzle for the in-
car temperature sensor (B10/4) to measure the temperature when the ignition is. ON .
The in-car temperature sensor (B10/4) records the interior temperature and conveys it to the AAC push-button
control module, where a comparison is made with the setting on the temperature selector. The blend air flap is
repositioned depending on the result of this.
It is connected to the AAC push-button control module via a separate electric cable.
Constant circulation of interior air at the in-car temperature sensor (B10/4) is achieved by this ventilation and
therefore a hi
gh level of control accuracy is guaranteed.

Icing protection
temperature sensor,
location
GF83.57-P-
2106-01GH

Icing protection
temperature sensor,
taskThe icing protection temperature sensor (R35) records the
evaporator temperature, whereupon the refrigerant compressor is
switched off and the evaporator protected against icing up.


Icing protection
temperature sensor,
function
GF83.57-P-
2106-02GH

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:17 PMPage 147 © 2006 Mitchell Repair Information Company, LLC.

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
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Saturday, October 02, 2010 3:23:18 PMPage 179 © 2006 Mitchell Repair Information Company, LLC.

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.