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
me
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.