manual radio set MERCEDES-BENZ ML320 1997 Complete Repair Manual

22 Contents - Operation
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
OperationVehicle keys ...................................... 24
Start lock-out .................................... 25
General notes on the
central locking system ............... 26
Central locking system ................... 26
Radio frequency
remote control .............................. 26
Unlocking the liftgate .................. 28
Panic button .................................. 28
Mechanical keys ........................... 29
Doors .................................................. 30
Central locking switch .................... 32
Automatic central locking .......... 32
Emergency unlocking in case
of accident .................................... 33
Liftgate ............................................... 34
Antitheft alarm system ................... 35
Tow - aw ay a lar m a n d
glass breakage sensor ................ 36
Seats, front ........................................ 37
Manual seats ................................. 39
Power seats ................................... 40Head restraint ...............................41
Heated seats ..................................... 44
Seat belts and integrated
restraint system .......................... 46
Seat belts .......................................... 46
Seat belt nonusage
warning system ............................ 47
BabySmart
TM airbag
deactivation system ................... 53
Self-test BabySmart
TM
without special child
seat installed ................................ 53
Supplemental restraint
system (SRS) ............................... 54
Emergency tensioning
retractor (ETR) ............................ 55
Airbags .............................................. 56
Safety guidelines for the
seat belt, emergency
tensioning retractor
and airbag ..................................... 63
Infant and child
restraint systems ......................... 65
Adjustable steering wheel .............. 70
Inside rear view mirror ...................71Antiglare night position .............. 71
Exterior rear view mirrors ............. 73
Exterior rear view mirror,
electrically folding ....................... 75
Instrument cluster ........................... 76
Indicator lamps in the
instrument cluster ...................... 78
Trip computer ................................... 83
Flexible service system (FSS) ........ 87
Engine oil level indicator ................ 89
Exterior lamp switch ....................... 90
Fo g la mp sw itch
(except Canada) .......................... 92
Fo g la mp sw itch
(Canada only) .............................. 93
Hazard warning flasher
switch ............................................ 94
Headlamp cleaning system ............ 94
Windshield wiper/washer
switch ............................................ 95
Rear window wiper/washer ........... 96
Climate control ................................. 98
Basic setting – Heater ............... 100

309 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Special settings (Climate control) ............................... 101
Split rear seat bench ..................................................... 120
Easy entry/exit feature ............................................ 123
Rear seat head restraints ......................................... 124
SRS indicator lamp ........................................................ 219
SRS malfunction .............................................................. 57
Start lock-out .................................................................... 25
Starting and turning off the engine ............................ 164
Steering lock ................................................................... 162
Steering wheel
Adjustable .................................................................... 70
Indicator lamp ...........................................................222
Stop lamp, high mounted .............................................267
Storage compartments
Center console ............................................................115
Compartment under front passenger seat .............116
Glove box .....................................................................115
Stowing things in the vehicle ......................................230
Stranded vehicle ............................................................259
Sun visors ........................................................................113
Supplemental restraint system (SRS) ........................... 54
Synchronizing remote control ..................................... 271
TTachometer ........................................................................82
Technical data ................................................................ 287
Electrical system ...................................................... 290
Main dimensions ...................................................... 291
Rims and tires ..................................................288, 289
Weights ...................................................................... 290
Tele Aid ............................................................................ 148
Emergency calls ........................................................149
Information ................................................................ 154
Initiating an emergency call manually .................. 151
Roadside Assistance ................................................. 152
Telephone, general ......................................................... 139
Telephones and two-way radios ................................... 146
Telescoping steering column
Adjusting ......................................................................70
Indicator lamp .......................................................... 222
The first 1 000 miles (1 500 km) ................................147
Third row seats ...............................................................126
Tie-down rings, cargo .................................................... 132
Tire inflation pressure ................................................. 250
Tire traction ....................................................................178

22
Contents - Operation
Te ch n ica l
data
Instruments
and controls Operation
Driving Instrument
cluster display Practical hints Car care Index
OperationVehicle keys ...................................... 24
Start lock-out .................................... 25
General notes on the central locking system ............... 26
Central locking system ................... 26 Radio frequency
remote control .............................. 26
Unlocking the liftgate .................. 28
Panic button .................................. 28
Mechanical keys ........................... 29
Doors .................................................. 30
Central locking switch .................... 32 Automatic central locking .......... 32
Emergency unlocking in case of accident .................................... 33
Liftgate ............................................... 34
Antitheft alarm system ................... 35
Tow - aw ay a lar m a n d glass breakage sensor ................ 36
Seats, front ........................................ 37 Manual seats ................................. 39
Power seats ................................... 40 Head restraint ...............................41
Heated seats ..................................... 44
Seat belts and integrated restraint system .......................... 46
Seat belts .......................................... 46 Seat belt nonusage
warning system ............................ 47
BabySmart
TM airbag
deactivation system ................... 53
Self-test BabySmart
TM
without special child
seat installed ................................ 53
Supplemental restraint system (SRS) ............................... 54
Emergency tensioning retractor (ETR) ............................ 55
Airbags .............................................. 56 Safety guidelines for the
seat belt, emergency
tensioning retractor
and airbag ..................................... 63
Infant and child
restraint systems ......................... 65
Adjustable steering wheel .............. 70
Inside rear view mirror ...................71 Antiglare night position .............. 71
Exterior rear view mirrors ............. 73 Exterior rear view mirror,
electrically folding ....................... 75
Instrument cluster ........................... 76
Indicator lamps in the instrument cluster ...................... 78
Trip computer ................................... 83
Flexible service system (FSS) ........ 87
Engine oil level indicator ................ 89
Exterior lamp switch ....................... 90
Fo g la mp sw itch (except Canada) .......................... 92
Fo g la mp sw itch (Canada only) .............................. 93
Hazard warning flasher switch ............................................ 94
Headlamp cleaning system ............ 94
Windshield wiper/washer switch ............................................ 95
Rear window wiper/washer ........... 96
Climate control ................................. 98
Basic setting – Heater ............... 100

309
Index
Te ch n ica l
data
Instruments
and controls Operation Driving
Instrument
cluster display Practical hints Car care
Index
Special settings (Climate control) ............................... 101
Split rear seat bench ..................................................... 120 Easy entry/exit feature ............................................ 123
Rear seat head restraints ......................................... 124
SRS indicator lamp ........................................................ 219
SRS malfunction .............................................................. 57
Start lock-out .................................................................... 25
Starting and turning off the engine ............................ 164
Steering lock ................................................................... 162
Steering wheel
Adjustable .................................................................... 70
Indicator lamp ...........................................................222
Stop lamp, high mounted .............................................267
Storage compartments Center console ............................................................115
Compartment under front passenger seat .............116
Glove box .....................................................................115
Stowing things in the vehicle ......................................230
Stranded vehicle ............................................................259
Sun visors ........................................................................113
Supplemental restraint system (SRS) ........................... 54
Synchronizing remote control ..................................... 271
TTachometer ........................................................................82
Technical data ................................................................ 287 Electrical system ...................................................... 290
Main dimensions ...................................................... 291
Rims and tires ..................................................288, 289
Weights ...................................................................... 290
Tele Aid ............................................................................ 148 Emergency calls ........................................................149
Information ................................................................ 154
Initiating an emergency call manually .................. 151
Roadside Assistance ................................................. 152
Telephone, general ......................................................... 139
Telephones and two-way radios ................................... 146
Telescoping steering column
Adjusting ......................................................................70
Indicator lamp .......................................................... 222
The first 1 000 miles (1 500 km) ................................147
Third row seats ...............................................................126
Tie-down rings, cargo .................................................... 132
Tire inflation pressure ................................................. 250
Tire traction ....................................................................178

ContentsOperation......................................... 191
The first 1000 miles (1500 km) ......... 192
Driving instructions ............................ 193
Drive sensibly – save fuel ............. 193
Drinking and driving ..................... 193
Pedals .......................................... 193
Power assistance ......................... 193
Brakes .......................................... 194
Driving off..................................... 195
Parking ......................................... 196
Tires ............................................. 196
Hydroplaning ................................ 197
Tire traction .................................. 197
Tire speed rating .......................... 198
Winter driving instructions ........... 198
Standing water ............................. 200
Off-road driving ............................ 200
Trailer towing ............................... 206
Passenger compartment .............. 211
Driving abroad .............................. 211
Control and operation of
radio transmitters......................... 211
Catalytic converter ....................... 212
Emission control........................... 212
Coolant temperature .................... 213At the gas station .............................. 214
Refueling ...................................... 214
Check regularly and before
a long trip ..................................... 215
Engine compartment ......................... 217
Hood ............................................ 217
Engine oil ..................................... 218
Transmission fluid level ................ 222
Coolant ........................................ 222
Battery ......................................... 223
Windshield washer system and
headlamp cleaning system* ......... 224
Tires and wheels ................................ 226
Important guidelines .................... 226
Life of tire..................................... 227
Direction of rotation ..................... 227
Checking tire inflation pressure ... 227
Rotating wheels ........................... 228
Winter driving .................................... 230
Winter tires .................................. 230
Block heater (Canada only) .......... 231
Snow chains ................................. 231Maintenance...................................... 232
Clearing the service indicator ...... 232
Service term exceeded ................ 233
Calling up the service indicator .... 233
Resetting the service indicator .... 233
Vehicle care....................................... 234
Cleaning and care of the vehicle .. 234
Practical hints................................. 241
What to do if … .................................. 242
Lamps in instrument cluster ........ 242
Additional indicators in the
speedometer display.................... 256
Where will I find ...? ........................... 257
First aid kit ................................... 257
Vehicle tool kit ............................. 257
Spare wheel (space-saver tire) ..... 259
Unlocking / locking in an emergency . 261
Unlocking the vehicle................... 261
Locking the vehicle ...................... 262
Changing batteries in the
remote control ............................. 262
Fuel filler flap ............................... 263
Manually unlocking the
transmission gear selector lever .. 264

Fig. 36: Identifying Radio (RD) Arrangement Of Operating Elements
RADIO MODE, FUNCTION - GF82.60-P-2001B
MODELS 163, 168, 170, 203.0 /2 /7, 208, 209.3 /4, 210 with CODE (353) Audio 30 APS
The ultra-short wave (FM), medium wave (MW) and long wave (LW) high-frequency signals are received from
the radio antenna mounted on the vehicle. The music, voice and/or data signals are modulated upon the high-
frequency signals received. The high-frequency signals are forwarded by the radio antenna over a coaxial cable
to the radio receiver in the radio and navigation unit (A2/56). The radio receiver demodulates the high-
frequency signals, i.e. it separates the useful information from the high-frequency carrier signal. The
demodulated audio signals are amplified and converted to sound signals by the vehicle speakers. Possibilities
for radio station selection:
Direct frequency input
Manual station search
Automatic station search (the stations on a waveband are played for approx. 8 s)
Station selection from the memory (6 stations for each frequency range)
Radio Data System (RDS), function
Many radio stations, e.g. (FM) transmit in addition to the program additional information such as the station
name, type of program (e.g. pop, culture, etc.), traffic station identification and alarm messages. This
information is evaluated and shown on the radio and navigation unit (A2/56) display, provided that:
the "RDS" function is switched on
an RDS station is set and received.
When an RDS station is received with a traffic broadcast in the background the abbreviation "TP" (Traffic

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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manual station search is activated by actuating the "joystick "to left or right. The station search feature
stops at the next station found, even when the" joystick " continues to be actuated.
Automatic station search with scan function can be activated by pressing the multifunction " Scan " key.
Each station received in the frequency range is played for approx. 8 s This function is possible only in
the forward direction. When activated " Scan " appears inverted on the display.
Manual fine coordination
The frequency can be changed when the" joystick " is moved up or down.
Station selection from memory
For each frequency range (memory FM, AM ) there are 10 memory buttons available. Press button of
number block approx. 2 s to store a station. When a station is stored it is confirmed by an acoustic signal.
Any station stored previously is written over.
In the frequency range WB (weather forecast) 7 stations are preset. These stations can be called by
momentarily pressing the desired number of the number block.
Station selection with frequency input via number block Pressing the" *" button followed by actuation of
the number keys allows direct entry of the desired frequency. Undesired entries can be erased with the"
Clear " button.
Station selection from the FM or AM station list by pressing the multifunction key" List " all stored
stations in the momentary frequency range are listed. Exit station list by pressing FM or AM
multifunction key .
Automatic storage
The "Auto" multifunction key (when pressed for longer than 2 s ) starts automatic storage of the 10
strongest stations in the corresponding frequency range. The stations are stored according to the strength
of the received signals in decreasing order.
CD-PLAYER MODE, FUNCTION - GF82.60-P-2002B
MODELS 163, 168, 170, 203.0 /2 /7, 208, 209.3 /4, 210 with CODE (353) Audio 30 APS
CD's can be played on the CD drive integrated into the radio and navigation unit (A2/56) or with the CD player
with changer (in glove compartment) (A2/6). The audio data are transmitted over the Digital Data Bus (D2B).
The CD disk drive is a double-speed standard CD disk drive, which is suitable both for pla
ying back audio CDs
Volume/tone adjustments,
function GF82.60-P-2003GI
Antenna system (AS),
location of components GF82.62-P-0001-03D
FM/AM antenna amplifier,
location/purpose/
design/function GF82.62-P-4101A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
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When the rotary knob is actuated in the switched-on state the radio and navigation module (A2/56)can be
switched off.
Switch-off characteristics when voltage is too low
The central processor in the radio and navigation module (A2/56) permanently monitors the battery voltage.
Depending on the voltage value the system will act as follows:
The battery voltage less than 9.5 volts
If the battery voltage drops below 9.5 volts the radio and navigation module (A2/56) switches off
automatically.
If the system switches off and the voltage increases to greater than 9.5 volt the radio and navigation module
(A2/56) does not switch back on automatically.
If the system switches off it can be switched back on manually .
TELEPHONE MODE, FUNCTION - GF82.85-P-2007GI
MODEL 163 as of 1.9.01 with CODE (522) Modular control system (MCS) radio USA with CODE (357)
Navigation system - additional unit with CODE (818b) Single CD player - additional unit with CODE
(491) U.S. version
Radio mode, function GF82.60-P-2001GI
CD-player mode,
function GF82.60-P-2002GI
Telephone mode,
function GF82.85-P-2007GI
Cassette mode, function GF82.85-P-2010GI
Navigation mode,
function GF82.85-P-2012GI

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
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Multifunction keys "NUM " and "NAME ".
Entering code
The telephone can be protected against undesired use by entering a three - digit code. All telephone
functions are disabled except the emergency call function.
The telephone can be enabled again by entering the three - digit code (correction possible with " Clear" button
in the event of incorrect entry) and actuation of the multifunction key" OK ".
The following functions are available in the telephone mode:
Emergency call function
This function offers the possibility of transmitting an emergency call within the reception range of the
radio telephone network. The emergency call number is stored in the memory location 1 and can be
called even when the telephone is disabled. The emergency call is performed by pressing and holding
control button 1 down longer than 1 second " EMERGENCY " appears on the display. An emergency
call can be terminated by pressing " the "END " button.
Manual entry of telephone number
Telephone numbers can be entered manually on the number pad.
An incorrectly entered number can be deleted by momentarily pressing the " CLEAR " button. If the" CLEAR
" button is pressed for longer than 2 s all telephone numbers deleted
If the number entered consists of only 1 or 2 numbers, the telephone number stored in the memory with this
code is dialed.
The entered telephone number can be transmitted to the telephone by pressing the " SEND " button. The
telephone compares the transmitted telephone number with the telephone number stored in the memory. If the
numbers coincide the associated name, the memory location number and the telephone appear on the display
(depending on setting).
If the numbers do not coincide, the telephone number entered is still displayed.
Then the connection can be completed. The duration of the telephone call is indicated in minutes and seconds.
The call can be terminated by pressing the " END " button.
Selecting stored telephone number
The memory can be called up by pressing the multifunction key" NAME " or "NUM "."NAME "
indicates the stored names on the display" NUM " indicates the memory location number as well as the
associated telephone number. By pressing the" joystick " up or down the stored entries are displayed.
Pressin
g to the right or left causes display of the next 4entries or previous 4 entries.

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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If a name is not available for the stored telephone number, the display is switched over and the
memory location and the telephone number are displayed.
By manually entering 1 or 2 numbers and subsequent actuation of the multifunction key" NAME " or
"NUM " the name stored under this memory location number or the stored telephone number are
indicated.
Pressing " SEND " button completes the desired connection. If no connection is to be completed, the
memory area can be exited by pressing the multifunction key" EXIT ".
Quick dial
When a one or two-digit number is entered and the " SEND " button is actuated the telephone number
stored under this memory location number is dialed.
By pressing and holding one of the number buttons 1 to 9 for more than 2 s the telephone number stored
under this memory location number is dialed. In this case it is not necessary to actuate the " SEND "
button.
Memory location functions 1 number is reserved for emergency !
Redialing
Pressing the" SEND " button without previously entering a telephone number calls up the last 5 selected
telephone numbers on the display. It is possible to select the desired telephone number by pressing the"
joystick " up or down. The connection is completed by actuating the" SEND " button. This area can be
exited by pressing the multifunction key" EXIT ".
Incoming calls
During an incoming call all other audio sources are set to mute and "CALL " appears on the display. The
call can be accepted by pressing the " SEND " button or terminated by pressing the" END " button.
During a call it is possible to continue dialing, e.g. enter a code number for an answering machine.
CASSETTE MODE, FUNCTION - GF82.85-P-2010GI
MODEL 163 as of 1.9.01 with CODE (522) Modular control system (MCS) radio USA with CODE (357)
Navigation system - additional unit with CODE (818b) Single CD player - additional unit with CODE
(491) U.S. version
GPS roof
antenna/telephone,
location/purpose/
design/function GF82.70-P-
4111A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:06 PMPage 139 © 2006 Mitchell Repair Information Company, LLC.