Mercedes-Benz ML320. Service manual - part 672

 

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Mercedes-Benz ML320. Service manual - part 672

 

 

Control of fresh air/recirculated air flap via the AAC push-button control module (N22)  

When the recirculating air push-button is pressed (

 ) on the AAC push-button control module the system is 

switched by means of the fresh air/recirculated air flap actuator motor straight to 100 % recirculation air. This is 
displayed by the function LED. 

If a problem exists, it is possible to retrieve and verify the defined end positions by means of the diagnosis 
assistant system (DAS) (valuation trip). 

After replacement of an actuator motor it is necessary for an adjustment run to be performed using the diagnosis 
assistant system (DAS), i.e. the end positions flap OPEN and SHUT are defined and retained. 

AIR CONDITIONING FLUID RESERVOIR, LOCATION - GF83.30-P-2106-01GH 

The fluid reservoir (6) is located in the left front of the engine compartment, next to the condenser. 

Fig. 66: Identifying Air Conditioning Fluid Reservoir And Associated Components 

AIR CONDITIONING FLUID RESERVOIR, FUNCTION - GF83.30-P-2106-02GC 

Function  

NOTE:

The recirculated air function can be terminated after a set time-out in 
accordance with country specifications.

NOTE:

All actuators are identical.

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

The liquefied refrigerant is routed under pressure into the fluid reservoir and flows through a stainless steel 
meshing to the filter block. The pores in the filter block are matched precisely to the refrigerant's molecular size. 
Thus the refrigerant can flow through the filter block. 

All other matter, primarily water, is held back by this molecular filter and deposited. The cleaned refrigerant 
flows over a rising pipe to the expansion valve. 

 Whenever the system is opened, the fluid reservoir should be replaced because of the water which has 

collected there in the meantime. 

ALL-ACTIVITY MODULE, LOCATION - GF83.30-P-2108-02GH 

The all-activity module (AAM) (N10) is located in the left-hand side of the engine compartment. It is plugged 
on from below to the fuse and relay module (F1). 

Fig. 67: Identifying All-Activity Module And Relay Module 

FRESH AIR/RECIRCULATED AIR FLAP ACTUATOR, LOCATION/TASK/FUNCTION - GF83.30-P-2116GC 

MODELS 163 up to 31.8.01, 168 up to 28.2.01 with CODE (580) Air conditioning or Tempmatic for USA 

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

Shown on model 163 as of 1.09.01  

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

Fig. 68: Identifying Fresh Air/Recirculated Air Flap Actuator - Shown On Model 163 As Of 1.09.01 

EVAPORATOR HOUSING, LOCATION/TASK/FUNCTION - GF83.30-P-2119GH 

MODEL 163 up to 31.8.01 with CODE (580) Air conditioning or Tempmatic for USA  

 

Fresh air/recirculated air 
flap actuator, position

The fresh air/recirculated air flap actuator (M2/5) is 
located on the side of the air inlet duct of the air 
conditioner housing.

 

   

Model 168

GF83.30-P-
2105-01GC

   

Model 163, up to 31.08.01

GF83.30-P-
2105-01GH

 

Fresh air/recirculated air 
flap actuator, task

The fresh air/recirculated air flap actuator serves to cut off 
the supply of fresh air when required.

 

 

Fresh air/recirculated air 
flap actuator, function

Model 168

GF83.30-P-
2105-02GC

   

Model 163, up to 31.08.01

GF83.30-P-
2105-02GH

   

Model 163 as of 1.09.01

GF83.30-P-
2105-02GI

 

Evaporator housing, 
location

 

GF83.30-P-2104-
01GH

GF83.30-P-2104-

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

AIR CONDITIONING FLUID RESERVOIR, LOCATION/TASK/FUNCTION - GF83.30-P-2120GC 

MODELS 163 up to 31.8.01  

168 up to with code (580) Air conditioning or Tempmatic for USA  

OVERVIEW OF AIR CONDITIONING (TAC) SYSTEM COMPONENTS, LOCATION/PURPOSE/DESIGN/FUNCTION - 
GF83.30-P-9999GI 

MODEL 163 up to 31.8.01 with CODE (580a) Automatic air conditioning  

  Evaporator housing, task  

04GH

 

Evaporator housing, 
function

 

GF83.30-P-2104-
02GH

   

At maximum heating mode in vehicles with engine 
612.963 only

GF83.30-P-2104-
02GK

 

Fluid reservoir (TAC), 
location

Model 168

GF83.30-P-2106-
01GC

   

Model 163

GF83.30-P-2106-
01GH

 

Fluid reservoir (TAC), 
task

Filtering chemical and mechanical impurities out 
of the refrigerant  

Volume accumulator for refrigerant  

Draining of refrigerant  

 

 

Fluid reservoir (TAC), 
function

 

GF83.30-P-2106-
02GC

  Air inlet, location/function

 

GF83.10-P-
2138GC

  Air ducts, location/purpose/design

 

GF83.10-P-
2139GH

  Blower, location/purpose/design/function

 

GF83.10-P-
2102GC

  Series resistor group, location/purpose/function

 

GF83.10-P-
2161GC

  Dust filter, location/purpose/function

 

GF83.10-P-
2142GH

  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

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

 

 

 

 

 

 

 

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