Mercedes-Benz ML320. Service manual - part 682

 

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Mercedes-Benz ML320. Service manual - part 682

 

 

ENGINE AND AC ELECTRIC SUCTION FAN WITH INTEGRATED CONTROL, FUNCTION - GF83.40-P-2172-01GI 

Function  

Depending on the refrigerant pressure and/or on the coolant temperature the speed of the engine and AC electric 
suction fan with integrated control (M4/7) is increased infinitely. 

The engine and AC electric suction fan with integrated control (M4/7) receives the coolant temperature from the 
coolant temperature sensor (B11/4) and the refrigerant pressure from the refrigerant pressure and temperature 
sensor (B12/2). 

This input information is compared by the engine and AC electric suction fan with integrated control (M4/7) 
with the stored values and, if necessary, the speed of the engine and AC electric suction fan is increased to 100 

The engine and AC electric suction fan with integrated control (M4/7) operates with AC switched on and in the 
reheat mode for basic ventilation with a capacity of up to 20 %. 

The basic ventilation can be switched off under the following conditions: 

At an outside temperature of < or = 15°C. 

The pressure-dependent fan speed remains the same. 

At a driving speed of > 75 km/h. 

The pressure-dependent fan speed remains the same. 

An overrun time of 60 s can be set in order to ensure that the engine and AC electric suction fan with integrated 
control (M4/7) will continue to operate even where the refrigerant compressor is temporarily switched off by 
the icing protection. 

The engine and AC electric suction fan with integrated control (M4/7) has a power rating of 850 W. 

ELECTRIC SUCTION-TYPE FAN FOR ENGINE AND AC WITH INTEGRATED CONTROL, LOCATION/TASK/FUNCTION 
- GF83.40-P-2172GI 

MODEL 163 as of 1.9.01 with ENGINE 113.965 /981, 612.963, 628.963 with CODE (580a) Automatic air 
conditioning
  

MODEL 163 as of 1.9.01 up to 31.8.02 with ENGINE 113.942 with CODE (580a) Automatic air 
conditioning
  

 

and temperature sensor, 
function

 

GF83.40-P-
2171-01GI

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

Fig. 96: Identifying Electric Suction-Type Fan For Engine And AC With Integrated Control 

BUTTON FOR REAR AREA AIR DISTRIBUTION, LOCATION/TASK/FUNCTION - GF83.40-P-2173GI 

MODEL 163 as of 01.09.01 with CODE (580a) Automatic air conditioning

 

Electric suction-type fan for 
engine and AC with integrated 
control, location

 

 

 

Electric suction-type fan for 
engine and AC with integrated 
control, task

The electric suction-type fan for engine and AC with 
integrated control (M4/7) is used to cool down the 
coolant and the refrigerant.

 

 

Electric suction-type fan for 
engine and AC with integrated 
control, function

 

GF83.40-P-
2172-01GI

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

Fig. 97: Identifying Button For Rear Area Air Distribution And Air Distribution Switch 

SURVEY OF AUTOMATIC AIR CONDITIONING SYSTEM COMPONENTS, LOCATION/PURPOSE/DESIGN/FUNCTION - 
GF83.40-P-9990GI 

MODEL 163 as of 1.9.01 with code (580a) Automatic air conditioning  

 

Button for rear area air 
distribution, location

The button for rear area air distribution (

 ) is located in the center in the 

lower half of the air distribution switch (3) on the AAC push-button control 
module (N22).

 

 

Button for rear area air 
distribution, task

The button for rear area air distribution (

 ) blocks the rear blow-out ducts 

for ventilation.

 

 

Button for rear area air 
distribution, function

By pressing the button for rear area air distribution (

 ) the rear air 

distribution flap actuator motor (M2/21) is actuated and thus the air supply to 
the air duct for rear area ventilation is closed. 
Function feedback takes place by means of a red LED.

 

  Air inlet, location/function

 

GF83.10-P-
2138GC

  Air ducts, location/purpose/design

 

GF83.10-P-
2139GH

  Rear vent, location/purpose/function

 

GF83.10-P-
2143GC

  Defroster vent, location/purpose/function

 

GF83.10-P-
2144GC

  Center nozzle, location/purpose/function

 

GF83.10-P-
2149GC

  Lateral nozzle, location/purpose/function

 

GF83.10-P-
2150GC

  Rear nozzle, location/purpose/design/function  

GF83.10-P-
2151GI

 

Front footwell air outlet, location/purpose/ 
function

 

GF83.10-P-
2145GC

Rear footwell air outlet, location/purpose/ 

GF83.10-P-

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

  function

 

2146GI

 

Blower motor, 
location/purpose/design/function

 

GF83.10-P-
2170GI

  Blower regulator, location/purpose/function

 

GF83.10-P-
2141GI

 

Rear blower motor, location/purpose/design/ 
function

 

GF83.10-P-
2168GI

 

Rear electronic blower regulator, location/ 
purpose/function

 

GF83.10-P-
2176GI

  Combination filter, location/purpose/function  

GF83.10-P-
2128GI

 

Defroster vent flap actuator motor, location/ 
purpose/function

 

GF83.10-P-
2175GI

 

Footwell flap actuator, 
location/purpose/function

 

GF83.10-P-
2132GI

 

Actuator motor, center nozzle flap, location/ 
purpose/function

 

GF83.10-P-
2172GI

 

Actuator motor, rear shut-off flap, location/ 
purpose/function

 

GF83.10-P-
2171GI

 

Actuator motor, rear air distribution flap, 
location/purpose/function

 

GF83.10-P-
2173GI

 

Heating system heat exchanger, location/ 
purpose/function

 

GF83.20-P-
2108GC

 

Heating water circulation pump, location/ 
purpose/function

 

GF83.20-P-
2109GI

 

Fresh air/recirculation flap, location/purpose/ 
function

 

GF83.20-P-
2111GC

 

Fresh air/recirculation flap actuator, location/ 
purpose/function

 

GF83.30-P-
2116GC

 

Blower switch, 
location/purpose/design/function

 

GF83.25-P-
2100GI

  Blower button, location/purpose/function

Rear ventilation operating module

GF83.40-P-
2144GI

 

Air distribution switch, 
location/purpose/design/ function

 

GF83.25-P-
2101GI

 

Air distribution button, 
location/purpose/function

Rear ventilation operating module

GF83.40-P-
2159GI

 

Temperature selector wheel, location/purpose/ 
design/function

 

GF83.25-P-
2102GI

  Defroster button, location/purpose/function

 

GF83.40-P-
2139GI

 

Recirculating air push-button, 
location/purpose/ function

 

GF83.40-P-
2145GI

GF83.40-P-

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

 

 

 

 

 

 

 

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