1997 MERCEDES-BENZ ML320 navigation update

Program) appears on the radio and navigation unit display (A2/56).
Even when the RDS function is deactivated, the traffic station recognition and station following function remain
in operation (if activated). RDS alarm messages are still issued. In this case, CD playback or radio reception is
automatically interrupted.
2-tuner technology function
If interference occurs to reception while driving, the system attempts to receive the selected station on an
alternative frequency with the aid of the second (integrated) receiver and switch over when reception is better.
Moreover, the second radio receiver automatically generates a list of the receivable FM stations after switch-on,
and this list is continuously updated during operation. The stations contained in the list can be called up sorted
in alphabetical order with the station search buttons.
The station list is only available when the "RDS" function is activated.
At certain times, some radio channel programs are subdivided into regional programs.
Since the system automatically switches to an alternative frequency in the event of reception interference, this
can lead to a change in the regional program (not the radio network). If this is not desired, the regional program
function can be activated in the menu "REG". Switchover to an alternative frequency is then accomplished only
within the regional program.
FM antenna diversity function (models 209.3/4)
The antenna diversity function undertakes a reception-specific switchover between the FM antennas on the rear
window for model 209.3 (FM antennas of windshield for model 209.4). The function runs automatically and is
executed by the window antenna amplifier module 1 (A2/71) for model 209.3 (left antenna amplifier module
(A2/64) for model 209.4).
The radio tuner of the radio and navigation unit (A2/56) only generates the intermediate frequency (ZF) signal,
which serves as a reference to change the FM antenna for the window antenna amplifier module 1 (A2/71) on
model 209.3 (for model 209.4 left antenna amplifier module (A2/64)).
RDS Diversity/2-receiver technology function
The system consists of 2 FM receivers, a radio receiver and a search receiver. After turning on the radio system,
the search receiver automatically generates a list of FM stations received, which is continually updated during
operation.
Data such as reception quality, programs and alternative frequencies are stored. The audio receiver can therefore
switch over inaudibly to an alternative frequency. The list appears in alphabetical order when the "FM station
list" is called up. The stations which are displayed can be activated by selecting and confirming.
FM/AM antenna amplifier,
location/task/design/ functionModels 163, 168,
170, 208.4, 210.2
Models 208.3, 210 GF82.62-P-4101A

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:05 PMPage 59 © 2006 Mitchell Repair Information Company, LLC.

Fig. 51: Identifying Map-Supported Location Finding Function
ROUTE CALCULATION, FUNCTION - GF82.61-P-3011E
MODEL 163, 168, 170, 203.0 /2 /7, 208, 209.3 /4, 210 with CODE (353) Audio 30 APS
Once the destination is entered into the radio (A2) the route is calculated by the integrated navigation processor
and constantly updated. This can only be calculated within the digitalized map areas. The calculated route is the
prerequisite of the destination guidance system.
Route calculation, function
The navigation processor calculates the route based on the entered destination and with the aid of the DVD map
data while constantly finding the location. In the calculation, it takes into account the roads and attributes
available on the DVD card and their attributes, such as one-way streets, bans on turns, road classes, etc. (where
present).
Additionally, it is possible for the operator to indicate how the route is to be calculated:
Fastest route
Shortest route
Own adjustments
In the event of "OWN ADJUSTMENTS", the following stretches can be blocked from the route calculation:
FREEWAY
Basic location finding,
function GF82.61-P-3006GI
Global positioning system
location finding, function GF82.61-P-3007GI
Guidance, function GF82.61-P-3012GI
Radio and navigation
module, location/purpose/
design/function GF82.61-P-4109GI

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:05 PMPage 88 © 2006 Mitchell Repair Information Company, LLC.

FERRY
TOLL
After calculation of the route, the navigation processor makes up a list of the streets along the route. This route
list is used for navigation. It can be displayed during navigation by pressing the "I" (INFO) and "RTE" (Route)
buttons.
Route updating
If the driver deviates from the calculated route, a new route list is automatically calculated by the navigation
processor. The current position and the direction of travel are taken into consideration, and the new route is
optimized accordingly. This is accomplished without any message on the display.
Circumventing traffic jams with "Traffic jam" menu key function
After a traffic jam is reported on traffic radio and before reaching the affected section, a route can be calculated
for driving around the traffic jam. For this purpose, activate the "Traffic jam" menu and enter the length of the
traffic jam including the distance to the start of the traffic jam.
The "Traffic jam" function is also available for Federal and State highways as well as for inner city areas.
Trips outside the digitized map area
If the vehicle leaves the digitized DVD map area (e.g. driving into a multi-level car park), then no route can be
calculated or updated. "OFF ROAD" appears on the display. Upon leaving the map boundary, the display "OFF
MAP" appears.
Destinations which lie outside of the digitalized map area cannot be taken into consideration on calculation of
the route.
ROUTE CALCULATION, FUNCTION - GF82.61-P-3011GI
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
The route is calculated and updated continuously by the navigation processor after entering the destination on
the radio and navigation module (A2/56) It can only be calculated within the digitized map area. The
calculated route is the prerequisite of the guidance system .
Route calculation
The navigation processor calculates the route with the aid of the CD-ROMmap data, the entered destination
Destination guidance,
function GF82.61-P-3012D

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:05 PMPage 89 © 2006 Mitchell Repair Information Company, LLC.

MUTE multifunction key
Muting voice output.
MAP multifunction key
Changing between map display and direction arrow display
Pressing the "Clear " key returns to the previous menu.
STARGUIDE, FUNCTION - GF82.85-P-2014GI
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
The StarGuide system uses the availability of the present technologies for telecommunications.
These are used for the purpose of personal information services.
The service "Dynamic route guidance " will be added to the system at a later time.
Technical requirements:
E-Call and
MCS and
newest navigation CD (it includes the current software for executing the offered services). The MCS is
updated with this and
the prerequisites required for executing the corresponding systems are fulfilled.
Organizational prerequisites:
Constant map
matching,
function GF82.61-P-
2002GI
Route
calculation,
function GF82.61-P-
3011GI
Guidance,
function GF82.61-P-
3012GI
Voice output,
function GF82.85-P-
3001GI
Volume/tone
adjustments,
function GF82.60-P-
2003GI

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:06 PMPage 150 © 2006 Mitchell Repair Information Company, LLC.

Fig. 92: Connection Schematic Between Vehicle And Center Via Mobile Telephone
System concept of information service:
The vehicle owner determines his own interest profile for service information such as world news or stock
exchange data. He transmits the desired information to the Mercedes Benz Customer Service. This profile is
indicated to the S ervice O peration Center (SOC ).
With the" SVC " button on the radio and navigation module (A2/56) it is possible to transmit an update
request for service information to the S ervice O perating C enter (SOC ).
In the S ervice O peration C enter (SOC ) this customer profile is used for selecting information. The desired
information is compiled by the information provider and transmitted to the vehicle via the S ervice O peration C
enter (SOC ).
The data transmitted is indicated on the display in the radio and navigation module (A2/56) .
Starguide, function GF82.85-P-2014GI
Information service,
function GF82.85-P-3016GI
Telephone mode,
function GF82.85-P-2007GI
Modular control system
(MCS), function GF82.85-P-0011GI

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:06 PMPage 155 © 2006 Mitchell Repair Information Company, LLC.

Parts ordering notes
ERROR IN COMAND OPERATING AND DISPLAY SYSTEM - AF82.85-P-6000-01B
Error patterns for COMAND update CD 10/2001.
The service update CD COMAND with part number W 215 589 00 22 00 eliminates the following complaints:
COMAND: A 220 820 37 89
Error patterns:
Increased quiescent current.
The personal symbols on the map are not updated during active guidance.
Voice control does not react to commands
Occasionally no sound (duration approx. 1 second).
COMAND: A 203 820 91 89, A 463 820 10 89
Error patterns:
Increased quiescent current.
6 Insert update CD into
Navigation unit and close
MCS door.
7 Follow on-screen
instructions until update
is complete.
DO NOT turn off
engine.
8 Remove update CD
when download is
complete.
Disregard error
message stating disc
cannot be read: There is
no map information on
the update CD.
9 Insert customer
Navigation DVD and
input any new address to
verify accuracy.
Part no.DesignationQuantity
T-2787-163Navigation update CD1

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 180 © 2006 Mitchell Repair Information Company, LLC.

The personal symbols on the map are not updated during active guidance.
Voice control does not react to commands
Occasionally no sound (duration approx. 1 second).
TV screen switches off when standing still
After switching on CD player plays CD1/track 1 instead of title played last
No message when CD magazine sticks during ejection
Wavy interference in navigation display when TV picture is switched off (as if station is not correctly
received)
TCS icons are occasionally not displayed on the map with active dynamic guidance
Telephone book is not activated.
COMAND: A 208 820 40 89, A 210 820 54 89, A 163 820 14 89
Error patterns:
Increased quiescent current.
The personal symbols on the map are not updated during active guidance.
Voice control does not react to commands
No message when CD magazine sticks during ejection
TCS cannot be activated sporadically.
Time in instrument cluster and COMAND differs approx. 1-2 seconds.
COMAND signals CD reading error without any obvious cause
PERFORMING SOFTWARE DOWNLOAD - AF82.85-P-6000-04A
COMAND 2.0-ECE / 2.5-ECE - Perform software download of CD:
Do not start vehicle during download, do not cause other voltage drops in the vehicle electrical system, do
not remove CD and do not switch off unit! (Unit will be damaged!)
In the case of erroneous operation of the download control module, the download starts again or is terminated if
the old software has not been erased previously.
1. Switch off ignition.
2. Remove navigation CD and insert download CD.
3. Switch off control module.
4. After a waiting time of min. 5 s and with buttons * and # pressed simultaneously, switch on unit.
The menu "Service download of CD" appears with menu points "Control module" and "Termination".
5. Select "Start control module" with right knob

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 181 © 2006 Mitchell Repair Information Company, LLC.

The date or the version of the currently stored software and the software on the CD appears in the
display.
By pressing the right knob the download is started. After some seconds the system changes to screen
"CD ROM software download".
On the download control module the main processor software is loaded first, then the graphic
processor software. Entire duration: approx. 40 minutes
The download progress is indicated by a bar graph.
In the event of errors an error message is indicated on the display.
When the download is completed, the display switches off for a short time. When it is switched back on
again the result of the download is displayed.
6. Remove download CD and reinsert navigation CD.
FAULT IN COMAND OPERATING AND DISPLAY SYSTEM - AF82.85-P-6000N
MODEL 163, 203, 208, 210, 215, 220, 463 with CODE (352a) COMAND operating and display system
with CODE (801) Model year 2001
MODEL 414 with CODE (EN4) Auto pilot system with TMC interface, large display with CODE (EN3)
Auto pilot system with GSM interface, large display
Modification notes
Operation no. of operation texts or standard texts and flat rates
26.11.01Supersedes AF82.85-P-
6000N dated 09.01.2002
Part numbers added and
changedAF82.85-P-6000-01B
CategoryOp. no.Operation textTimeAcc. no.Code
P829905PERFORMING SW
UPDATE FOR
RADIO/COMAND003 WU/0.3 h--
Damage codeCauseRemedy
Software error Error patterns for
COMAND update CD
10/2001.AF82.85-P-6000-01B
1 Perform COMAND
updateAF82.85-P-6000-04A
Update only
COMAND with the
following part numbers.
A 163 820 14 89

2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:07 PMPage 182 © 2006 Mitchell Repair Information Company, LLC.