battery location MERCEDES-BENZ ML320 1997 Complete Repair Manual

172 Controls in detailUseful featuresThe Tele Aid system
(Telematic Alarm Identification on
Demand)
The Tele Aid system consists of three
types of response:

automatic and manual emergency


roadside assistance and


information.
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and cel-
lular and GPS coverage is available.
The speaker volume of a Tele Aid call can
be adjusted using the volume control on
the MCS unit.

To activate, press the SOS button, the
Roadside Assistance button• or
the Information button¡, depend-
ing on the type of response required.Shortly after the completion of your ac-
quaintance call, you will receive a user ID
and password via first call mail. By visiting
www.mbusa.com and selecting “Tele Aid”
(USA only), you will have access to account
information, remote door unlock, profile
and more.System self-check
Initially, after turning the key in the steer-
ing lock to position2, malfunctions are de-
tected and indicated (the indicator lamps
in the SOS button, the Roadside Assis-
tance button• and the Information
button¡ stay on longer than
10 seconds or do not come on). The mes-
sage
TELE AID - VISIT WORKSHOP
ap-
pears for approx. 10 seconds in the MCS
display.
iThe SOS button, the Roadside Assis-
tance button• and the Information
button¡ are located in the over-
head control panel.!The Tele Aid system utilizes the cellular
network for communication and the
GPS (G
lobal P
ositioning S
ystem) satel-
lites for vehicle location. If either of
these signals are unavailable, the Tele
Aid system may not function and if this
occurs, assistance must be summoned
by other means.

MODEL 163
Location of components, interior
lighting GF82.20-P-0002-
01GH
Interior lighting diagnosis, previous
knowledge AD82.20-P-2000GH
IBattery voltage 11-14 V
IIFuses in order
IIIAMM voltage supply in order AD54.21-P-6000-
01GH
IVLighting equipment in order
Function check
Scope of test Operation/Requirement Specified value Possible cause/
Remedy
1 Switch on front
interior lighting
manuallyAll doors closed, operate switch on
front dome lamp (with shut-off delay
and front reading lamp)(E15/2).Front dome lamp
(with shut-off delay
and front reading
lamp) (E15/2)
illuminatedCables E15/2
2 Switch on right rear
interior lighting
manuallyAll doors closed, operate switch on
right rear dome lamp (E15/9).Right rear dome lamp
(E15/9) illuminatedCables E15/9
3 Switch on left rear
interior lighting
manuallyAll doors closed, operate switch on
left rear dome lamp (E15/8).Left rear dome lamp
(E15/8) illuminatedCables E15/8
4 Switch on interior
lighting by opening a
front doorAll doors closed, all interior lamps
OFF, open left front or right front
door.Front dome lamp
(with shut-off delay
and front reading
lamp) (E15/2), left
rear dome lamp
(E15/8) and right rear
dome lamp (E15/9)
dimmedRotary tumbler
microswitch
AD80.20
-P-6001-
39GH
Interior lamps
AD82.20
-P-5000GH
Cables
All-Activity Module
(AAM) (N10)
5 Switch on interior
lighting by opening a
rear doorAll doors closed, all interior lamps
OFF, open left rear or right rear
door.Left rear dome lamp
(E15/8) and right rear
dome lamp (E15/9)
dimmedRotary tumbler
microswitch
AD80.20
-P-6001-
40GH
Interior lamps
AD82.20
-P-5000GH
Cables
All-Activity Module
(AAM) (N10)
6 Switch on interior
lighting by unlocking Central locking in order All doors
closed and locked, all interior lamps Front dome lamp
(with shut-off delay All-Activity Module
(AAM) (N10)

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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INTERIOR LIGHTS DIAGNOSIS TROUBLESHOOTING - AD82.20-P-5000GH
MODEL 163
vehicleOFF, unlock vehicle with transmitter
key.and front reading
lamp) (E15/2), left
rear dome lamp
(E15/8) and right rear
dome lamp (E15/9)
dimmed
7 Switch on interior
lighting by switching
off ignitionAll doors closed, all interior lamps
OFF, ignition OFF.Front dome lamp
(with shut-off delay
and front reading
lamp) (E15/2), left
rear dome lamp
(E15/8) and right rear
dome lamp (E15/9)
dimmedAll-Activity Module
(AAM) (N10)
8 Switch off interior
lighting by switching
on ignitionAll doors closed, interior lighting
switched on by opening a front door,
ignition ON.Front dome lamp
(with shut-off delay
and front reading
lamp) (E15/2), left
rear dome lamp
(E15/8) and right rear
dome lamp (E15/9)
dimmedAll-Activity Module
(AAM) (N10)
9 Switch on rear
interior lighting
manuallySwitch on rear dome lamp (E15/3)
in "ON continuously" position.Rear dome lamp
(E15/3) illuminatedAD82.20-P-6000-
03GH E15/3
10 Rear interior
lighting switches on
automaticallySwitch on rear dome lamp (E15/3)
in "Automatic" position, open rear
doors.Rear dome lamp
(E15/3) illuminatedAD80.20-P-6001-
40GH
AD82.20
-P-6000-
03GH
E15/3
Location of components,
interior lighting GF82.20-P-0002-01GH
Fuses in order
IBattery voltage 11-14 V
IIAMM voltage supply in
order AD54.21-P-6000-01GH
IIILighting equipment in order
Troubleshooting
Complaint Possible cause Notes Remedy/Test step
Interior lighting Cables Voltage supply

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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WIPER SYSTEM DIAGNOSIS PREVIOUS KNOWLEDGE - AD82.30-P-2002GH
MODEL 163
WIPER SYSTEM DIAGNOSIS OPERATIONAL CHECK - AD82.30-P-3002GH
MODEL 163
Risk of injury due to
getting jammed or
crushed in extreme cases
due to limbs being
severed by coming into
contact with the
windshield wiper
mechanismAlways remove the
ignition key when
working on the
windshield wiper
mechanism.AS82.30-Z-0001-01A
Location of components,
front screen wiper system GF82.30-P-0005-01GH
Location of components,
rear screen wiper system GF82.30-P-0004-01GH
Function description,
wiper system GF82.30-P-0003GH
Electric wiring diagram,
wiper system PE82.30-P-2000F
Inter-function groups of
wiring diagrams PE00.19-P-1100E
Connection and use of
test equipment AD00.00-P-1000AZ
Diagnostic tools, wiper
system AD54.21-P-2000-01GH
Location of components, wiper
systemRear screen wiper
system&(GF82.30-P-0004-
01GH)
Front screen wiper
system&(GF82.30-P-0005-
01GH)
Wiper system diagnosis, previous
knowledge AD82.30-P-2002GH
Prerequisites for function check
IBattery voltage 11-14V
IIFuses in order
IIIAAM voltage supply in order AD54.21-P-6000-
01GH
IVIgnition (terminal 15) ON
Function check
Scope of test Operation/requirement Specified value Possible cause/

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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Location of components,
wiper systemFront screen&(GF82.30-P-0005-
01GH)
Rear screen&(GF82.30-P-0004-
01GH)
Battery voltage 11-14 V
Fuses in order
AAM voltage supply in
order AD54.21-P-6000-01GH
Troubleshooting
Complaint Possible cause Notes Remedy/Test step
Front wiper system
inoperativeCombination switch (S4) AD82.30-P-6002-09GH
Wiper motor (M6/1) AD82.30-P-6002-
02GH, cables
Front wiper does not
function when washing
front screenWiper motor (M6/1) AD82.30-P-6002-02GH
Windshield washer
pump does not function
when washing front
screenWindshield washer pump
(M5/1) AD82.30-P-6002-04GH
Front wiper does not
function in wiping stage
1 or stage 2Combination switch (S4) AD82.30-P-6002-09GH
Wiper motor (M6/1) AD82.30-P-6002-02GH
Front wiper does not
function with
intermittent wipingCombination switch (S4)
All-Activity Module (AAM)
(N10) AD82.30-P-6002-01GH
Front wiper does not
stop in rest position
when switched off.Cam-operated switch on
wiper motor (M6/1) AD82.30-P-6002-07GH
Rear wiper system
inoperativeRear window wiper/washer
switch (S78)
All-Activity Module (AAM)
(N10) AD82.30-P-6002-06GH
Rear window wiper
inoperativeRear window wiper/washer
switch (S78) AD82.30-P-6002-06GH
Rear window wiper motor
inoperative (M6/4) AD82.30-P-6002-08GH
Rear window wiper does
not function when
washing rear windowRear window wiper/washer
switch (S78) AD82.30-P-6002-06GH
Rear window wiper
cannot be switched offRear window wiper motor
relay (M6/4) AD82.30-P-6002-
03GH, cables

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
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AUDIO 30 APS DIAGNOSIS, FUNCTION CHECK - AD82.61-P-3001A
MODEL 163,168,170, 208, 210 with CODE (353) Audio 30 APS
notes
Audio 30 APS location of
componentsModel 163GF82.61-P-0002-01D
Model 168GF82.61-P-0002-01B
Model 170GF82.61-P-0002-01A
Models 208, 210GF82.61-P-0002-01C
Location and assignment
of cable and plug
connectionsModel 163GF00.19-P-1000E
Model 168GF00.19-P-1000GC
Model 170GF00.19-P-1000B
Model 208GF00.19-P-1000D
Model 210GF00.19-P-1000A
Overview of electrical
wiring diagramsModel 163PE82.00-P-1100E
Model 168PE82.00-P-1100GC
Model 170PE82.00-P-1100B
Model 208PE82.00-P-1100D
Model 210PE82.00-P-1100A
Connection and use of
test equipment AD00.00-P-1000AZ
Diagnostic tools, Audio
30 APS AD82.61-P-2001-01A
Variant coding, radio and
navigation unit AD82.61-P-2001-03A
Connector assignment,
radio and navigation unit AD82.61-P-2001-02A
Audio 30 APS diagnosis, basic
knowledge AD82.61-P-2001A
See specified diagnosis
manuals for function checks on
the following systems: radio
(RD), AM/FM antenna systems
(ATS) and loudspeaker system
(LSA).
Fuses okay
Battery voltage 11-14 V
Function check
Scope of test Action/prerequisites Nominal value Possible cause /

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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Audio 30 APS operating
notes GF82.61-P-0002-03A
Audio 30 APS location of
componentsModel 163GF82.61-P-0002-01D
Model 168GF82.61-P-0002-01B
Model 170GF82.61-P-0002-01A
Models 208, 210GF82.61-P-0002-01C
Audio 30 APS diagnosis,
previous knowledge AD82.61-P-2001A
Battery voltage 11-14V
Troubleshooting
Complaint Cause Note Remedy
Radio and navigation
unit (A2/56) completely
inoperativeFuse in A2/56, Voltage
supply for A2/56, Defect at
navigation CD-ROM,
A2/56 AD82.61-P-6001-01A
No communication
possible between Hand-
Held Tester (HHT) and
Audio 30 APSK line, Radio and
navigation unit (A2/56) AD82.61-P-6001-02A
Navigation inoperative Navigation CD-ROM is not
loaded or is incorrectly
loaded or incorrect /
defective CD-ROM
Radio and navigation unit
(A2/56) Load navigation CD,
refer to:
GF82.61
-P-0002-03A
Destination finding
system messages are
given too early or too late
(e.g. "please turn right")Check wheel calibration
and variant coding AD82.61-P-2001-03A
The expected arrival
time is not correctTime on radio and
navigation unit (A2/56) is
incorrectly set Actuate "NAV"
pushbutton and activate
"CLOCK" menu, set
time
Navigation is defective
or impreciseCheck variant coding and
wheel calibration,
Reversing signal,
Wheel speed signal,
Models 163, 168, 208.3,
210:
Cellular telephone and GPS
roof antenna (A2/49),
Models 170, 208.4:
GPS rear antenna
(A2/23a2) Models 163, 168, 170
Models 208, 210Refer to:
AD82.61
-P-2001-03A
AD82.61
-P-6001-04A
AD82.61-P-6001-04B
AD82.61
-P-6001-03A
AD82.61-P-6001-05A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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Fig. 131: Radio And Navigation Unit, Illumination, Testing, Electrical System, Audio System 30 APS
AUDIO 30 APS, TESTING, ELECTRICAL SYSTEM - AD82.61-P-6001A
MODEL 163,168,170, 208, 210 with CODE (353) Audio 30 APS
Audio 30 APS, location
of componentsModel 163GF82.61-P-0002-01D
Audio 30 APS, location
of componentsModel 168GF82.61-P-0002-01B
Audio 30 APS, location
of componentsModel 170GF82.61-P-0002-01A
Audio 30 APS, location
of componentsModel 208, 210GF82.61-P-0002-01C
Audio 30 APS operating
instructions GF82.61-P-0002-03A
Audio 30 APS diagnosis,
basic knowledge AD82.61-P-2001A
Connector assignments
on radio and navigation
unit AD82.61-P-2001-02A
Battery voltage 11 -14 V
Testing
1Radio and navigation unit
power supply, testing,
electrical system, Audio
30 APS AD82.61-P-6001-01A
2HHT interface, testing,
electrical system, Audio
30 APS AD82.61-P-6001-02A
3Wheel speed signal,
testing, electrical system,
Audio 30 APS AD82.61-P-6001-03A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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CD PLAYER WITH CHANGER (CDC) DIAGNOSIS, FUNCTION CHECK - AD82.64-P-3000A
MODEL 124,163,168, 202, 208, 210 with CODE (819) 6-disk CD changer in trunk
MODEL 129 as of 1.6.98 with CODE (819) 6-disk CD changer in trunk
MODEL 638 with CODE (EP5) CD changer
location
Wiring diagramsModels 202, 208 as of
06/97PE82.00-P-1100D
Model 210PE82.00-P-1100A
Model 163PE82.00-P-1100E
Model 168PE82.00-P-1100GC
Models 124, 129 and
Model 202 up to 05/97,
Group 82
Connecting and using test
equipment AD00.00-P-1000AZ
Tools for checking the
electrical system, CD
player with changer AD82.64-P-2000-01A
CD player with changer,
connectionsModels 202, 208, 210 up
to 05/98 and Models 124,
168AD82.64-P-2000-02A
Model 163AD82.64-P-2000-02B
Models 129, 202, 208,
210 as of 06/98AD82.64-P-2000-02C
CD changer (CDC) diagnosis,
previous knowledgeModels 124, 129,
163, 168, 202, 208,
210AD82.64-P-2000A
Model 638: DMNL
Vito/V-class, CDCAD82.64-S-2000A
Battery voltage 11 - 14 V
Fuses okay
Radio in order
CD magazine of changer fitted
with satisfactory CDs free
from protective film

Function check
Scope of test Operation/Requirement Specified value Possible cause/
Remedy
1 Radio: ON CD operation must be AD82.64-P-5000A

2001 Mercedes-Benz ML320
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MISCELLANEOUS
MISCELLANEOUS LOCATION
CONNECTORS
CONNECTORS LOCATION
Parking Brake SwitchOn parking brake support bracket.
Passenger's Seat Belt SwitchIn passenger's seat belt buckle.
Release Switch (BAS)Integral to brake booster.
Right Front Seat Belt Buckle SwitchIn passenger's seat belt buckle.
Rotary Tumbler Trunk Lid MicroswitchPart of tailgate latch assembly.
Stoplight SwitchOn brake pedal support.
ComponentComponent Location
Alarm HornIn left rear corner of engine compartment.
Alarm Siren W/ Auxiliary BatteryIn left rear corner of engine compartment.
Antenna Coil (Left)At left side of rear window, behind trim.
Antenna Coil (Right)At right side of rear window, behind trim.
Antenna SplitterOn right side of liftgate.
Audio AmplifierBehind left side of dash.
Blower Motor Preresistor GroupUnder right side of dash, in blower assembly.
Data Link Connector (DLC)Below left side of dash.
Diagnostic Module (OBD II) Scan Tool ConnectorBelow left side of dash.
Driver's ETR SquibOn base of left "B" pillar, behind trim.
FM/AM AmplifierIn liftgate, behind trim.
Front Passenger ETR SquibOn base of right "B" pillar, behind trim.
Garage Door TransmitterOn front center of roof.
Hands-Free MicrophoneOn front center of roof.
Low Beam Headlight Relay Shorting ClipIn left side of engine compartment, in fuse & relay
box.
Recirculated Air Flap ElementBehind right side of dash.
Transponder CoilTop right side of steering column, on ignition
switch.
ComponentComponent Location
X2/4 (Black, 2-Pin)Behind radio.
X11/4 (Black, 16-Pin)Below left side of dash.
X18 (Red, 28-Pin)Behind center of dash.
X18/1 (Black, 9-Pin)Under tailgate trim.
X18/A_B (Black, 16-Pin)At right kick panel.
X18/2 (1) (White, 10-Pin)At left rear of engine compartment.
X18/2 (2) (4-Pin)At left rear of engine compartment, in E-box.

2001 Mercedes-Benz ML320
2001 MERCEDES-BENZ ML320 & ML430
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