Page 3473 of 4133

 AC compressor 
 Refrigerant compressor 
2Remove poly V-belt AR13.22-P-
1202B 
3
Unscrew hexagon socket head screw 
(1) securing low-pressure refrigerant 
line (2) to refrigerant compressor (6) Detach low-pressure refrigerant line (2) 
from refrigerant compressor (6). 
   Installation: Install new sealing rings 
and moisten with compressor oil. 
   *BA83.55-
P-1002-01A
4
Unscrew hexagon socket head screw 
(3) securing high-pressure refrigerant 
line (4) to refrigerant compressor (6)
 *BA83.55-
P-1002-01A
5
Detach refrigerant compressor 
connector (A9x1) at refrigerant 
compressor (6) Installation: Install new sealing rings 
and moisten with compressor oil. 
6
Unscrew external Torx drive bolt (5) 
from refrigerant compressor (6) at 
crankcase
 External torx setFig. 172
7Remove refrigerant compressor (6) 
from below Installation: Note additional oil filling 
capacity when replacing the fluid reservoir.*BF83.55-
P-1005-01A
8Install in the reverse order  
9Remove receiver/drier
 The fluid reservoir must be replaced 
every time after the refrigerant compressor 
is removed and installed.AR83.30-P-
6520GH
  
 Installation: Note additional oil filling 
capacity when replacing the refrigerant 
compressor.*BF83.55-
P-1008-01A
NumberDesignationEngines 111.977,112.942, 
112.970,113.942/ 965/981 
in MODEL 163
BA83.55-P-1002-01ABolt of refrigerant lines to 
AC compressorNM20
NumberDesignationRefrigerant 
compressor 7SB16, 
refrigerant R134a 
in model 163
BF83.55-P-1005-
01AAdditional oil filling 
capacity when 
replacing fluid 
reservoirCompressor oilcm3 10
Specifications for 
Operating FluidsSheetBB00.40-P-0362-
00A
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
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        Page 3474 of 4133
Fig. 186: Identifying External Torx Set (001 589 76 09 00)  
MAINTENANCE 
REPLACE DUST FILTER FOR HEATIN  G/AIR CONDITIONING - AP83.00-P-8381GH 
MODEL 163.113 /128 /136 /154 /157 /172 /174 /175    
Fig. 187: Identifying Dust Filter
 
BF83.55-P-1008- 
01AAdditional oil filling 
capacity when  
replacing refrigerant  
compressorCompressor oilcm3 20
Specifications for  
Operating FluidsSheetBB00.40-P-0362-
00A
  
 Remove/install  
1Remove cover below instrument  
panel (passenger side) Up to 31.08.99AR68.10-P-
1520GH 
 Remove/install cover below  
instrument panel (right) As of 01.09.99AR68.10-P-
1520GI 
2First unlatch retaining clamp (3), then  
remove cover(2)  
3Withdraw dust filter (1) downwards 
(arrows) The dust filter must not be 
cleaned; it must be replaced. 
4Install in the reverse order  
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
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        Page 3475 of 4133
REMOVAL & INSTALLATION 
INSTALL AUXILIARY WIRING HARNESS - SM83.30-P-0009GH 
MODEL 163.154 #A up to 289564, 163.154 #X, 163.136 /172 with CODE (580) Air conditioning (or 
Tempmatic for USA)  
Fig. 188: Identifying Auxiliary Wiring Harness Location
 
Operation no. of operation texts or standard texts and flat rates 
CategoryOp. 
no.Operation textTimeAcc. 
no.Code
P023731INSTALLING MODIFIED WIRING HARNESS FOR 
Additional fan (AFTER CHECKING)015WU/1.3h--
 Removing  
1Disconnect battery ground 
cable AR54.10-P-
0003A 
   *BA54.10-
P-1017-01C
2Remove rear cover from 
fuse and relay module (F1) 5 screws. 
3
Remove mounting screws of 
fuse holder on fuse and relay 
module (F1) and lay down to 
  
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
Saturday, October 02, 2010 3:23:19 PMPage 231 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 3476 of 4133

side
4
Disconnect blue connector 
(ML/B) from bottom of fuse 
holder
  
5Remove lamp unit AR82.10-P-
4730GH 
6
Remove original additional 
fan connector (M4x1) from 
additional fan and fasten to 
present wiring harness (5) 
with adhesive tape on clip 
(6)
  
 Install   
7
Route new additional fan 
connector (3) on auxiliary 
wiring harness (2) to 
additional fan connector and 
insert
 Route along original wiring harness at rear of 
installation opening of lamp unit 
8
Fasten auxiliary wiring 
harness (2) to original wiring 
harness in area of clips with 
cable straps.
  
9
Fasten auxiliary wiring 
harness ground cable (1) to 
left front ground (W9)
 *BA54.10-
P-1017-01C
10
Route auxiliary wiring 
harness (2) into fuse and 
relay module
 Route fuse and relay module along wiring harness 
for fuse and relay module (4) below installation 
opening of lamp unit between washer water reservoir 
and fender to grommet on left side of fuse and relay 
module. Remove adhesive tape from rubber 
grommet, thread wiring harness through and reinstall 
adhesive tape.
 
11
Route connection terminal 
of auxiliary wiring harness 
(2) to blue connector 
(ML/B) at bottom of fuse 
holder
  
12
Open housing of connector 
(ML/B) and remove lead 
from plug location 1
  
13
Separate present lead 
approx. 100 mm in front 
connection terminal
  
Insert connection terminal 
for auxiliary wiring harness 
 Ensure that connection terminal arrests correctly 
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
Saturday, October 02, 2010 3:23:19 PMPage 232 © 2006 Mitchell Repair Information Company, LLC.  
     
        
        Page 3477 of 4133
 Battery 
Parts ordering notes 
14
(2) into plug location 1 of 
connector (ML/B) and close 
connector housing.in connector.
 
15
Insert blue connector 
(ML/B) at bottom of fuse 
holder and fasten auxiliary 
wiring harness (2) to 
separated lead with adhesive 
tape
 Ensure that stripped wire ends are insulated with 
adhesive tape. 
16
Fasten fuse holder to fuse 
and relay module with 
screws
  
17Insert new 40 A fuse at 
position f44 in fuse holder The larger line diameter of the auxiliary wiring 
harness (2) allows installation of a 40 A fuse. 
18Install in the reverse order  
19Check function of additional 
fan  
NumberDesignationModel 163
BA54.10-P-1017-01CNut, ground cable to bodyNm18
Part no.DesignationQuantity
163 540 00 35Auxiliary wiring harness1
910153 000000Fuse, 40 A1
 
2001 Mercedes-Benz ML320 
1998-2005 HVAC Climate Control - 163 Chassis  
me  
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        Page 3478 of 4133
 AD54.30-P-6000-42GH
IC test of electrical system coolant level 
indicator
Model 163 as of 3.98
t 
A
 
Scope of test
Measuring instrument/
Test connection
 Operation/Requirement
Specified value
D
 Possible cause/Remedy
1.0
Coolant level indicator 
electronic switch (S41)
Model 163 as of 3.98
1 
 w
 
S41
 
BL
  2
Ignition: 
 OFF
Disconnect coupling at S41,
connect Ohm decade 
device,
set 70 k
 W,
Start engine,
wait for up to 1min
Set 30 k
 W
wait for up to 1min
Low ECL 
indicator lamp 
(A1e11) 
illuminated
A1e11 goes out
Values in order:
D
  Coolant level indicator 
electronic switch (S41)
Values not in order:
D
  Cables to A1
D
 A1
Copyright DaimlerChrysler AG  05.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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Page 1 
     
        
        Page 3479 of 4133

 BT27.00-Z-9999AZ
Technical modifications: Passenger cars: Automatic transmission
30.4.97
MODEL  all
Vacuum unit for modulating pressure modified
TRANSMISSION  722.3 /5 as of 15.8.92
BT27.10-P-0001-01A
Secondary pump dispensed with
TRANSMISSION  722.5## ## as of 3652931
BT27.10-P-0002-01A
Control pressure cable with vacuum actuators 
standardized
TRANSMISSION  722.3 /4 /5 as of 1.7.93
BT27.10-P-0003-01A
Sump volume modified
TRANSMISSION  722.7## ## as of 0054011 
as of 29.7.99
BT27.10-P-0004-01A
Additional shim between deep-groove ball 
bearing and output flange
TRANSMISSION  722 ...
BT27.10-P-0005-01A
Oil pan and overflow tube modified
TRANSMISSION  722.901
BT27.10-P-0006-01W
Retaining lug added to electrohydraulic 
control module
TRANSMISSION  722.6## # as of 0026195
BT27.19-P-0001-01A
Caps for solenoid valve, new
TRANSMISSION  722.6 as of 1.8.97
BT27.19-P-0003-01A
Oil drain plug on torque converter deleted
TRANSMISSION  722.6## /6## ## as of 
1772285 as of 22.9.99
BT27.20-P-0001-01A
Small intermediate plate modified
TRANSMISSION  722.5## ## as of 3987361 
as of 15.3.94
BT27.35-P-0001-01A
Installation of a pressure feed valve
TRANSMISSION  722.6## # as of 0027083
BT27.35-P-0002-01A
Primary pump non-return valve dispensed with
TRANSMISSION  722.5## ## as of 3652931
BT27.35-P-0003-01A
Strainer for modulating pressure and shift 
pressure control solenoid valve, new
TRANSMISSION  722.6## ## as of 0538312
BT27.35-P-0004-01A
Strainer in inlet to converter lock-up control 
solenoid valve, newTRANSMISSION  722.6## ## as of 0485895
BT27.35-P-0005-01A
Feed B1 enlarged
TRANSMISSION  722.5 as of 15.8.91
BT27.40-P-0001-01A
Fluid reservoir deleted
TRANSMISSION  722.7## ## as of 0111673 
as of 11.9.00
BT27.40-P-0002-01A
Magnet in oil pan, new part
TRANSMISSION  722.6## ## as of 2871384 
as of 17.4.01,  722.7## ## as of 0153700 as 
of 9.7.01
BT27.40-P-0003-01A
Piston B1 modified
TRANSMISSION  722.5## ## as of 3746852 
as of 15.6.92,  722.3## ## as of 3969172
BT27.50-P-0002-01A
Plain bearing of input shaft changed to an anti-
friction bearing
TRANSMISSION  722 ...
BT27.50-P-0002-02A
One-way valve dispensed with
TRANSMISSION  722.5## ## as of 3652931
BT27.50-P-0007-01A
Outer multiple-disc carrier B1 modified
TRANSMISSION  722.6## # as of 0005900
BT27.50-P-0008-01A
Peak-to-valley height on piston B2 modified
TRANSMISSION  722.6## # as of 0023104
BT27.50-P-0009-01A
Piston B2 changed
TRANSMISSION  722.6## ## as of 0552036 
as of 1.8.97
BT27.50-P-0010-01A
Friction bearing in sun wheel of rear planet 
gear set converted to anti-friction bearing
TRANSMISSION  722 ...
BT27.50-P-0011-01A
Conversion from 18° to 23° gearing in front 
and rear planetary gear system
TRANSMISSION  722 ...
BT27.50-P-0012-01A
Multi-disks for B1, K1 and K3 changed
TRANSMISSION  722.6## ## as of 3947440 
as of 2.9.02
BT27.50-P-0013-01A
Thickness of friction and steel disks K3 
changed
TRANSMISSION  722.6
BT27.51-P-0001-01A
Thickness of steel plates of B1, K1 and K2 
modified
TRANSMISSION  722.6## ## as of 1596205 
as of 15.6.99
BT27.51-P-0002-01A
Additional dished washer in multi-plate set K2
TRANSMISSION  722.6## ## as of 1596205 
as of 15.6.99
BT27.51-P-0003-01A
Center shift modified
TRANSMISSION  722.6
BT27.60-P-0001-01A
Deletion shift lock cable ignition lock to 
transmission
TRANSMISSION  722.7 in MODEL 
WDB168.### ## as of 548031 as of 10.1.01
BT27.60-P-0001-02A
Selector lever soldered
TRANSMISSION  722.6 as of 1.5.96
BT27.60-P-0002-01A
Deletion of lever for shift lock cable ignition 
lock at transmission
TRANSMISSION  722.700 ## as of 0129631 
as of 24.1.01,  722.701 ## as of 0132072 as 
of 8.2.01
BT27.60-P-0003-01A
Copyright DaimlerChrysler AG  28.05.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
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Page 1 
     
        
        Page 3480 of 4133

 GF54.30-P-2001A
Indicator / warning displays, function
24.10.96
MODEL 
129, 140 as of 1.6.96, 
163, 168, 170, 
202 as of 1.8.96, 
208 up to 31.7.99, 
210 as of 1.6.96 up to 30.6.99
The table below lists the various warning alarms and indications 
according to type (visual/acoustic) and their actuation (direct/CAN).
Visual warning and indicator signals actuated over direct lines:
 D
 Left turn signal indicator lamp (A1e1)
D
 Right turn signal indicator lamp (A1e2)
D
 High beam indicator lamp (A1e3)
D
 Fuel reserve warning lamp (A1e4)
D
 Brake fluid / parking brake warning lamp (A1e7) (except model 
163)
D
 Low windshield washer fluid level warning lamp (A1e13) (as of 
01.09.01 also valid for model 163)
D
 Low engine coolant level warning lamp (A1e11) (except model 
168, model 163 as of 3.99)
D
 Coolant level and temperature warning lamp (A1e11) (only model 
168 as of 9.99 and only coolant level function)
D
 Generator charge indicator/warning lamp (A1e5)
D
 Seat belt warning lamp (A1e9)
D
 Seatbelt/backrest lock warning lamp (A1e9)
D
 Exterior lamp failure indicator lamp (A1e14)
-----------------------------------------------------------------------------------------
 D
Hydraulic fluid level warning lamp (A1e37)
D
 ADS warning lamp, suspension (A1e27) 
D
 Steering lock warning lamp (A1e40) (only 
 
I
  )
D
 SRS airbag malfunction indicator lamp (A1e15)
D
 AIRBAG OFF indicator lamp (A1e56), only model 163 except 
 
I  
 Also refer to document: Indicator and warning signals triggered 
over CAN data lines
 Acoustic warning and indicator signals actuated over direct 
lines:
 D
 Turn signal ticker
D
 Seat belt reminder
D
 Switched-on lights reminder
D
 Key warning
D
 Soft top warning, only model 170
 
Also refer to document: Acoustic warnings, function
Acoustic warning and indicator signals actuated over CAN data 
lines:
 D
 Parking brake warning
D
 Vehicle speed warning
D
 Vehicle speed limit warning 
D
 Gear warning, only model 168
 
Also refer to document: Acoustic warnings, function
Indicator and warning signals triggered over 
direct lines
GF54.30-P-3002A
Indicator and warning signals triggered over 
CAN data lines
GF54.30-P-3003A
Acoustic warnings, function
GF54.30-P-3010A
Copyright DaimlerChrysler AG  04.06.2006 CD-Ausgabe G/10/04 . This WIS print-out will not be recorde
 d by Modification services.
Page 1