Page 3465 of 4133

 Dashboard 
 Air conditioning system 
8Remove wiper system AR82.30-P-
6400GH 
9Remove nuts (5) from instrument 
panel at firewall 
*BA68.10-
P-1001-
01A
10Remove paneling from A-pillar AR68.30-P-
4050GH 
11Remove plastic nuts on driver's side 
at paneling below instrument panel  
12Remove paneling on right in footwell AR68.30-P-
4010GH 
13
Remove rubber covers on side at the 
A-pillars and unscrew screws for 
instrument panel at A-pillar (arrows)
 
*BA68.10-
P-1002-
01A
14Remove center console AR68.20-P-
2000GH 
15Unscrew bolt (6) underneath the 
instrument panel 
*BA68.10-
P-1003-
01A
16Withdraw instrument panel to the 
rear Bring in helper. Cushion front edge of 
selector lever module so that lower edge of 
instrument panel is not damaged.
 
17Turn instrument panel around so that 
the back is accessible Do not overstretch interior wiring 
harness. 
18Detach outside temperature sensor 
connector (B10/5x1)  
19Disconnect cable from temperature 
sensor to evaporator housing Installation: Ensure clean cable routing. 
20Remove outside temperature sensor 
(B10/5) from air duct 2 bolts. 
21Install in the reverse order  
22Inspect cooling system for leaks AR20.00-P-
1010HA 
NumberDesignationModel Series 163
BA68.10-P-1001-01ANut, dashboard to firewallNM8
BA68.10-P-1002-01ABolt, dashboard to A-pillarNM19
BA68.10-P-1003-01ABolt, dashboard to transmission tunnelNM30
NumberDesignationModel Series 163
BA83.30-P-1003-01BNut to pipeline on expansion valveNM10
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
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Saturday, October 02, 2010 3:23:19 PMPage 221 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 3466 of 4133

REMOVE/INSTALL AIR OUTLET TEMPERATURE SENSOR - AR83.30-P-8087GH
MODEL 163.113 #A as of 289565, 163.154 #A as of 289620, 163.174 #A as of 289565, 163.113 #X as of 
754620, 163.128/157/175  
Instrument panel center nozzles  
Fig. 178: Identifying Center Nozzle Air Stream Temperature Sensor
 
REMOVE/INSTALL AIR OUTLET TEMPERATURE SENSOR - AR83.30-P-8087GI
1.1Remove glove compartment Only required on left hand drive vehicles.AR68.10-P-
1400GI 
1.2Remove instrument cluster Only required for right-hand steering.AR54.30-P-
6015GH 
2Remove center air nozzles AR68.10-P-
1150GH 
3
Remove center nozzle air 
stream temperature sensor
(B10/24)
 Do not damage center nozzle air stream temperature 
sensor (B10/24) in order to avoid malfunctions. 
 The center nozzle air stream temperature sensor 
(B10/24) is positioned on the right side above the air 
nozzles on the instrument panel. 
 Turn the center nozzle air stream temperature 
sensors (B10/24) 90° counterclockwise.
 
4
Disconnect center nozzle air 
stream temperature sensor plug 
(B10/24)
  
5Install in the reverse order  
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
Saturday, October 02, 2010 3:23:19 PMPage 222 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 3467 of 4133
MODEL 163.113 /154 /174 #A as of 289565, 163.113 #X as of 754620, 163.128/157/175  
Driver's side footwell  
Fig. 179: Identifying Front Footwell Air Stream Temperature Sensor
 
REMOVE/INSTALL AIR OUTLET TEMPERATURE SENSOR - AR83.30-P-8087GJ 
MODEL 163.113 /154 /174 #A as of 289565, 163.113 #X as of 754620, 163.128/157/175  
Blower motor in rear  
 
 Remove/install  
1Remove cover below instrument 
panel AR68.10-P-
1500GH 
2
Disconnect plug from front footwell 
air stream temperature sensor 
(B10/25)
  
3Remove front footwell air stream 
temperature sensor(B10/25)
 Do not damage front footwell air 
stream temperature sensor (B10/25). 
 Turn front footwell air stream 
temperature sensor (B10/25) 90 
counterclockwise.
 
4Install in the reverse order  
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
Saturday, October 02, 2010 3:23:19 PMPage 223 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 3468 of 4133
Fig. 180: Identifying Rear Air Stream Temperature Sensor And Connector 
REMOVE, INSTALL IN-CAR TEMPERATURE SENSOR FOR ASPIRATOR BLOWER (M9) - AR83.30-P-8100GH 
MODELS 163.113/136/154/172/174 as of 1.9.99 up to 31.8.01
 
 Remove/install  
1Remove center console AR68.20-P-
2000GH 
2Remove sound deadener  
3
Disconnect plug (1) from rear 
air stream temperature sensor 
(B10/7) The rear air stream temperature sensor 
(B10/7) is positioned in the left air nozzle on 
the blower motor.
 
4Remove rear air stream 
temperature sensor (B10/7)
 Do not damage rear air stream temperature 
sensor (B10/7). 
 Turn rear air stream temperature sensor 
(B10/7) 90 counterclockwise.
 
5Install in the reverse order  
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
Saturday, October 02, 2010 3:23:19 PMPage 224 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 3469 of 4133
Fig. 181: Identifying Components Of In-Car Temperature Sensor For Aspirator Blower 
REMOVE/INSTALL SWITCH UNIT/AUTOMATIC AIR CONDITIONING CONTROL MODULE - AR83.40-P-6500GH
 
 Removal, installation  
1Remove ETC control module AR27.19-P-
1719GH 
2Detach connector for interior/rear lamp 
wiring harness (X18) at ETC bracket (1) Release clamp on back of 
bracket and slide connector 
forward.
 
3Disconnect connector (X18)  
4Unscrew bolts (2)  
5Lay bracket (1) downward and to the side  
6Detach hose (3) at aspirator blower (M9)  
7Detach clip (5) of aspirator blower 
connector at instrument panel bracket  
8Disconnect in-car temperature sensor 
aspirator blower's connector  
9Unscrew bolts (4)  
10Remove in-car temperature sensor 
aspirator blower (M9)  
11Install in the reverse order  
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
Saturday, October 02, 2010 3:23:19 PMPage 225 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 3470 of 4133
MODEL 163.113 /154 /174 #A as of 289565, 163.113 #X as of 754620, 163.128/157/175  
Fig. 182: Identifying AAC Push
-button Control Module 
REMOVE AND INSTALL SUN SENSOR - AR83.40-P-6720GH 
MODEL 163.113 /154 /174 #A as of 289565, 163.113 #X as of 754620, 163.128 /157 /175 with CODE (580) 
Air conditioning or Tempmatic for USA  
 
 Remove/install  
1Remove center section of instrument panel AR68.10-P-
1030GH 
2
Remove switch unit of AAC control and operating 
module (N22) from center part of instrument panel 
(1)
  
3Unscrew screws (2) from AAC control and 
operating module (N22)  
4Disconnect AAC control and operating module 
(N22) from center section of instrument panel Loosen retaining 
clamps at the top and 
bottom.
 
5Install in the reverse order  
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
Saturday, October 02, 2010 3:23:19 PMPage 226 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 3471 of 4133
Fig. 183: Identifying Sun Sensor And Connector 
Fig. 184: Identifying Longitudinal Wedge (115 589 03 59 00)
 
REMOVE AND INSTALL REFRIGERANT COMPRESSOR - AR83.55-P-5300GH 
ENGINE 112 in MODEL 163 with CODE (580) Air conditioning or Tempmatic for USA  
 
 Remove/install  
1Pull sun sensor (B32) upwards out of the 
instrument panel Do not damage sun sensor and 
instrument panel. 
   Installation wedgeFig. 
184
2Disconnect plug (1) from sun sensor (B32)  
3Install in the reverse order  
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
Saturday, October 02, 2010 3:23:19 PMPage 227 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 3472 of 4133

Fig. 185: Identifying Refrigerant Compressor Components 
 
 Remove/install  
 
Risk of explosion from welding or 
soldering work on closed air 
conditioning system. Risk of 
poisoning. Inhaling overheated 
refrigerant vapors may be toxic. Risk 
of injury from skin and eye contact 
with liquid refrigerant.Do not carry out any welding work on the 
closed air conditioning system or in the 
surrounding area. No smoking or open 
flames. Wear eye protection and protective 
gloves. Work only in well ventilated areas. 
Carry out repair work on the air 
conditioning system circuit only after the 
system has been discharged.
AS83.00-Z-
0001-01A
 Procedures if air conditioning system 
is damaged or leakingAll models
AH83.30-
N-0004-
01A
 
Protect air conditioning circuit and 
components from moisture when 
carrying out repair work
All models fitted with air conditioning
AH83.30-
N-0005-
01A
 Notes on handling refrigerant R134aAll models fitted with air conditioning
AH83.30-
N-0003-
01A
1Discharge air conditioning system
 Installation: Evacuate air conditioning, 
refill and check for proper operation and 
leaktightness.AR83.30-P-
1760GH
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
Saturday, October 02, 2010 3:23:19 PMPage 228 © 2006 Mitchell Repair Information Company, LLC.