Mercedes-Benz ML320. Service manual - part 699

 

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Mercedes-Benz ML320. Service manual - part 699

 

 

Fig. 153: Identifying Series Resistor For Heater Blower Components (Shown On Model 163 Up To VIN 
A289564, X754619)
 

REMOVE/INSTALL COVER AT AIR INTAKE - AR83.25-P-1405GH 

MODEL 163.113 /128 /136 /154 /157 /172 /174 /175

 

 

Remove/install

 

 

1

Remove cover below instrument panel (2) (on right)

Up to VIN A145272, 
X708318.

AR68.10-P-
1520GH
 

 

 

As of VINA145273, 
X708319.

AR68.10-P-
1520GI
 

2

Disconnect connector (4) on blower motor series 
resistor group (R14)

 

 

3

Unscrew screws (3) from blower motor series 
resistor group (R14) on heater housing (1)

 

 

4

Remove blower motor series resistor group (R14)

 

 

5

Install in the reverse order

 

 

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

Fig. 154: Identifying Components For Cover At Air Intake - Model 
163.113 /128 /136 /154 /157 /172 /174 /175
 

CHECKING AIR CONDITIONING SYSTEM FOR LEAKAGE - AR83.30-D-1209-01A 

Workshop equipment 

 

 

Remove/install

 

 

 

Injury hazard by trapping or crushing, in 
extreme cases with loss of limbs when 
reaching into windshield wiper mechanism

Always remove ignition key when 
working on windshield wiper 
mechanism.

AS82.30-Z-
0001-01A
 

1

Remove wiper arms (1)

 

AR82.30-P-
6100GH
 

2

Detach rubber seal (2) from firewall

 

 

3

Remove metal clips (5)

 

 

4

Unscrew nuts (4) at firewall

 Remove foam insert.

 

5

Seal off washer fluid hose at check valve

 

 

6

Remove cover (3) together with water 
deflector panel (6)

 If damaged, detach water 

deflector panel (6) from cover (3). 

 Installation: Lubricate upper 

edge of cover and windshield at 
bottom with soapy water.

 

7

Install in the reverse order

 

 

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

1. Start vehicle engine and switch on air conditioning system.  

2. Check entire air conditioning circuit using leak detector probe (1). 

Remain for some time in areas where leaks are suspected. 

  

Since refrigerant is heavier than air and sinks, always guide leak detector probe (1) underneath the locations 
where leaks are suspected. 

Line connections, screwed pipe connections, condensers and evaporators are the most frequent cause of 
refrigerant leaks. 

Fig. 155: Identifying Air Conditioning System Leak Detector Probe 

CARRY OUT QUICK TEST ON AIR CONDITIONING SYSTEM - AR83.30-D-1209A 

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

MODELS 901.0/3 /4, 902.0/3 /4, 903.0/3 /4, 904.0/3 /4 with CODE (H06) Air conditioning  

WE58.40-Z-1002-20A

Air conditioning leak detector

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

Fig. 156: Identifying Quick Test On Air Conditioning System - Shown On Models 901, 902, 903, 904 

Shown on models 901, 902, 903, 904  

 

Prerequisites for 
testing

 

 

1

Place vehicle with open 
windows in the shade

 

 

2

Set heater control valve 
to "cold"

 

 

3

Set heating and 
ventilation system to 
fresh air mode

 

 

4

Fully open lateral 
nozzles, center nozzles 
and footwell flaps

 

 

5

Start vehicle engine and 
allow to idle

 

 

 

Inspecting 

 

 

6

Switch air conditioning 
on

 When the air conditioning is switched on, the vehicle 

engine's idle speed must increase. No idle speed increase ? 
Check function of refrigerant compressor RPM sensor in the 
event of complaint ? 

 

 

2001 Mercedes-Benz ML320 

1998-2005 HVAC Climate Control - 163 Chassis

  

me 

 

 

 

 

 

 

 

 

Content   ..  697  698  699  700   ..