1997 MERCEDES-BENZ ML350 Complete Repair Manual

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Page 3305 of 4133

MERCEDES-BENZ ML350 1997 Complete Repair Manual AIR CONDITIONING, LOCATION OF COMPONENTS - GF83.30-P-0003-01GH
Location of components in passenger compartment
Fig. 50: Identifying Air Conditioning Components In Passenger Compartment (1 Of 2)

L

Page 3306 of 4133

MERCEDES-BENZ ML350 1997 Complete Repair Manual Fig. 51: Identifying Air Condi tioning Components In Passenger Compartment (2 Of 2)
Location of components in passenger compartment as of 12/99
Fig. 52: Identifying Air Conditioning Component

Page 3307 of 4133

MERCEDES-BENZ ML350 1997 Complete Repair Manual Compartment As Of 12/99
Location of components in engine compartment
Fig. 53: Identifying Air Conditioning Components
- Location Of Components In Engine Compartment
Location of components, refrig

Page 3308 of 4133

MERCEDES-BENZ ML350 1997 Complete Repair Manual Fig. 54: Identifying Refr igeration Components - Refrigeration Technology Part Up To 11/99)
Location of components, refrigera tion technology part up to 12/99
Fig. 55: Identifying Refr igeratio

Page 3309 of 4133

MERCEDES-BENZ ML350 1997 Complete Repair Manual TABLE OF CONTENTS, AIR CONDITIONING (TAC) FUNCTION DESCRIPTION - GF83.30-P-0999GH
MODEL 163 up to 31.8.01 with code (580) Air conditioning or Tempmatic for USA
AIR CONDITIONING CONTROL MODULE FUNCT

Page 3310 of 4133

MERCEDES-BENZ ML350 1997 Complete Repair Manual 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 behi

Page 3311 of 4133

MERCEDES-BENZ ML350 1997 Complete Repair Manual AC CONTROL MODULE LOCATION/TASK/FUNCTION - GF83.30-P-2102GH
MODEL 163 up to 31.8.01 with CODE (580) Air conditioning or Tempmatic for USA
AC BUTTON, FUNCTION - GF83.30-P-2103-01GH
Function
Pressi

AC CONTROL MODULE LOCATION/TASK/FUNCTION - GF83.30-P-2102GH
MODEL 163 up to 31.8.01 with CODE (580) Air conditioning or Tempmatic for USA
AC BUTTON, FUNCTION - GF83.30-P-2103-01GH
Function
Pressing the AC button ( ) switches on the cooling mode.
AC button ( ) pressed
Diode is illuminated, cooling mode/air dehumidification, refrigerant compressor ON
AC button ( ) not depressed
Diode not illuminated, no air dehumidification/no cooling mode, refrigerant compressor OFF
The AC button ( ) is connected to the A/C control module, which regulates the refrigerant compressor
through the all-activity module. The refrigerant compressor is only active when the engine is running and the
blower switched on. To be able to determine the cut-in point for the electromagnetic coupling on the refrigerant
compressor, the all-activity module must receive additional data from the CAN bus, such as, e.g. the engine
speed.
AC BUTTON, LOCATION - GF83.30-P-2103-02GH
The AC button ( ) is located in the air conditioning control module (S98).

Air conditioning
control module,
location
GF83.30-P-
2102-02GH

Air conditioning
control module,
task
Control of air conditioning
Recording input signals of various components
Internal processing of input signals
Sending of control signals to various components

Air conditioning
control module,
function
The AC control module records the input signals of various
components, in order to check the preconditions for proper and intended
operation. It sends control signals to the following components:
Blending air flap actuator motor, fresh air/recirculated air flap actuator
motor, All-activity module.
The air conditioning (tempmatic) control module (TAC) receives input
data from the following devices: AC button, in-car temperature sensor,
temperature selector wheel, blower switch, icing protection temperature
switch, blending air flap position signal.

2001 Mercedes-Benz ML320
1998-2005 HVAC Climate Control - 163 Chassis
me
Saturday, October 02, 2010 3:23:15 PMPage 67 © 2006 Mitchell Repair Information Company, LLC.

Page 3312 of 4133

MERCEDES-BENZ ML350 1997 Complete Repair Manual Fig. 58: Identifying AC Button On Air Conditioning Control Module
AC BUTTON, LOCATION/TASK/FUNCTION - GF83.30-P-2103GH
MODEL 163 up to 31.8.01 with CODE (580) Air conditioning or Tempmatic for USA

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