trunk MERCEDES-BENZ ML320 1997 Complete Owner's Manual

The laser-optical device scans the non-labeled side of the rotating CDwithout making contact and converts the
digital optical signals into electrical signals. Small interruptions in the data flow of the laser optics caused by
scratches or contamination on the audio CD are compensated by the D/A converter supplementing the missing
values .
The electrical signals are then decoded in the CD player with changer (in trunk) (A2/6) and transmitted via
the digital data bus ( D2B ) to the radio and navigation module (A2/56) via the audio signal processing or
when the sound amplifier (A2/13) (code 810) is installed to the loudspeakers.
Jumps and interruptions during playback
On bad roads or in the event of heavy vibrations , jumps and interruptions can occur during playback. In
such cases do not start CD mode until better road conditions are present.
In the event of wet weather conditions and strong deviations in the ambient temperatures moisture can collect in
the CD player housing (condensation formation). This could also lead to malfunctions in the playback. In such
cases provide for sufficient ventilation of the CD player and the trunk.
CD PLAYER WITH CHANGER, LOCATION/TASK/DESIGN/FUNCTION - GF82.64-P-3113B
MODELS 163, 208, 210, 215, 220 with CODE (819) 6-disc CD changer
MODELS 208, 210, 215, 220 with CODE (819a) CD changer with CODE (498) Japanese version
Shown on model 220 (as of 1.9.02)
Fig. 74: Identifying CD Changer (In Trunk) Location

CD player with changer,
locationThe CD player with
changer (in the trunk)
(A2/6) is located in the
trunk near the left side
wall.
Model 163GF82.64-P-3113-01GI
Models 208, 210GF82.64-P-3113-01D
Models 215, 220 with GF82.64-P-3113-01F

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CD PLAYER WITH CHANGER, LOCATION/PURPOSE/DESIGN/FUNCTION - GF82.64-P-3113GI
MODEL 163 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 (819) 6-disk
CD changer in trunk with CODE (491) U.S. version
code 498
Models 215, 220 without
code 498GF82.64-P-3113-01E
CD player with changer,
purposePlaying audio
compact discs (CD)
Changing CDs
contained in the
magazine

CD player with changer,
design6-slot CD changer
magazine
only: 12-slot
CD changer
magazine
Digital Data Bus
(D2B) interface

The factory planned
installation position for
the CD changer is vertical,
whereby other installation
positions are possible by
adaptation of the spring
locations.

CD player with changer,
functionModels 208, 210GF82.64-P-3113-02C
Model 215, 220GF82.64-P-3113-02B

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MODULAR CONTROL SYSTEM (MCS), FUNCTION - GF82.85-P-0011GI
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
(819) 6-disk CD changer in trunk with CODE (491) U.S. version
The following systems can be operated centrally with the aid of the radio and navigation unit (A2/56) :
Cassette deck
Radio
Single CD player and CD player with changer (optional)
Sound system (optional)
Navigation (optional)
Telephone (optional)
Fig. 82: Identifying Radio And Navigation Unit
of two components:
CTEL antenna
(A2/49a1)
GPS antenna
(A2/49a2)
Model 163 as of 01.09.01GF82.70-P-4111-03GH
GPS/CTEL roof antenna,
functionCode 351 or code 353,
except models
129 /163 /220GF82.70-P-4111-04A
Code 353 for model 163GF82.70-P-4111-04D
Code 347 or 348 or 352
except models 168/163GF82.70-P-4111-04B
Model 163 as of 01.09.01GF82.70-P-4111-04GH

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MODEL 163 up to 31.8.01
Location of component
Fig. 96: Identifying Antenna Splitter Components Location

MODULAR CONTROL SYSTEM (MCS) SURVEY OF SYSTEM COMPONENTS LOCATION/TASK/DESIGN/FUNCTION -
GF82.85-P-9995GIZ
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
(819) 6-disk CD changer in trunk with CODE (491) U.S. version
CTEL/GPS antenna
splitter, locationThe CTEL and GPS
antenna splitter (A2/57)
is located in the center
console on the left-hand
side in the radio slot.
CTEL/GPS antenna
splitter, purposeThe CTEL and GPS
antenna splitter (A2/57)
is required for operating a
GSM cellular telephone
and a GPS receiver over a
single antenna cable.
CTEL/GPS antenna
splitter, design GF82.85-P-3107-03GH
CTEL/GPS antenna
splitter, function GF82.85-P-3107-04GH
Radio/navigation unit
location/task/design/ function GF82.61-P-4109GI
Sound amplifier
location/task/design/functionwith CODE (810)
Sound systemGF82.62-P-3100GH
Antenna splitter,
location/task/design/function GF82.85-P-3107B

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INTERIOR LIGHTS TEST OF ELECTRICAL SY STEM FRONT DOME LAMP - AD82.20-P-6000-01GH
Fig. 103: Interior Lights Test Of Electrical System Front Dome Lamp
INTERIOR LIGHTS TEST OF ELECTRICAL SYSTEM REAR LAMPS - AD82.20-P-6000-02GH
Fig. 104: Interior Lights Test Of Electrical System Rear Lamps
INTERIOR LIGHTS TEST OF ELECTRICAL SY STEM REAR DOME LAMP - AD82.20-P-6000-03GH
Fig. 105: Interior Lights Test Of Electrical System Rear Dome Lamp
Left rear dome lamp
(E15/8) inoperativeLeft rear dome lamp (E15/8) Cables, E15/8
Right rear dome lamp
(E15/9) inoperativeRight rear dome lamp
(E15/9) Cables, E15/9
Interior lighting does not
come on when central
locking is unlocked Central locking in orderCables N10
Malfunctions of rear
dome lamp (E15/3):
Rear dome lamp (E15/3)
inoperativeRotary tumbler/trunk lid
microswitch (S88/1) AD82.20-P-6000-03GH
Rear dome lamp (E15/3)AD80.20-P-6001-44GH

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RADIO (RD) DIAGNOSIS, CONTENTS - AD82.60-P-1000AZ
MODEL 124, 129, 140, 163, 168, 170, 202, 208, 210 with MB radio
MODEL 129, 140, 168, 170, 202, 208, 210 with MB radio and navigation operating unit, APS
electrical system of wiper
system
3Intermittent wiper
control, testing electrical
system of wiper system AD82.30-P-6002-01GH
4Cam-operated switch,
testing electrical system
of wiper system AD82.30-P-6002-07GH
5Wiper motor, testing
electrical system of wiper
system AD82.30-P-6002-02GH
6Washer pump, testing
electrical system of wiper
system AD82.30-P-6002-04GH
7Trunk lid washer pump,
testing electrical system
of wiper system AD82.30-P-6002-05GH
8Trunk lid wiper relay,
testing electrical system
of wiper system AD82.30-P-6002-03GH
9Rear window
wiper/washer switch,
testing electrical system
of wiper system AD82.30-P-6002-06GH
10Trunk lid wiper motor,
testing electrical system
of wiper system AD82.30-P-6002-08GH
I 3.1 [] 11Radio (RD) diagnosis,
advanced information AD82.60-P-2000A
I 3.1 [] 12Radio (RD) diagnosis,
function check AD82.60-P-3000A
I 3.1 [] 13Radio (RD) diagnosis,
DTC memoryModels 129, 170, 202,
208, 210 as of 01.06.98
with digital data bus
(D2B)AD82.60-P-4000A
I 3.1 [] 14Radio (RD) diagnosis,
troubleshooting AD82.60-P-5000A
I 3.1 [] 21Radio (RD), testing AD82.60-P-6000A

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CD PLAYER WITH CHANGER (CDC) DIAGNOSIS, CONTENTS - AD82.64-P-1000AZ
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
TOOLS, TESTING ELECTRICAL SYSTEM, CD PLAYER WITH CHANGER - AD82.64-P-2000-01A
switch off radio.
Testing
1Amplifier control module,
testing electrical system of
LSSpannungsversorgungAD82.62-P-6001-
01C
2Amplifier control module,
testing electrical system of
LSLoud Speaker SignalAD82.62-P-6001-
01D
3Loudspeaker, testing
electrical system of LSLeft rear DoorAD82.62-P-6001-02S
4Loudspeaker, testing
electrical system of LSRight rear DoorAD82.62-P-6001-
02T
5Loudspeaker, testing
electrical system of LSLeft front doorAD82.62-P-6001-
02U
6Loudspeaker, testing
electrical system of LSRight Front DoorAD82.62-P-6001-
02V
7Acoustimass (R) bass
module, testing electrical
system of LSBabboxAD82.62-P-6001-
04A
I 6.1 [] 11CD player with changer
(CDC) diagnosis,
advanced information AD82.64-P-2000A
I 6.1 [] 12CD player with changer
(CDC) diagnosis,
function check AD82.64-P-3000A
I 6.1 [] 13CD player with changer
(CDC) diagnosis, fault
memoryModels 129, 202, 208,
210 as of 01.06.98 with
CODE (819) 6-disk CD
changer in trunk and
digital data bus (D2B)AD82.64-P-4000A
I 6.1 [] 14CD player with changer
(CDC) diagnosis,
troubleshooting AD82.64-P-5000A
I 6.1 [] 21CD player with changer
(CDC), testing electrical
system AD82.64-P-6000A

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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

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CD PLAYER WITH CHANGER (CDC) DIAGNOSIS, TROUBLESHOOTING - AD82.64-P-5000A
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
VOLTAGE SUPPLY, TESTING ELECTRICAL SYSTEM, CD CHANGER - AD82.64-P-6000-01B
Model 163
faultless
Function of CD
changer in
accordance with radio
operating instructionsAdjust loudness on radio
Perform all operating functions of
CD changer Models 129, 202,
208, 210 with digital
data bus (D2B): ?
AD82.64-P-4000A
CD player with changer
(CDC) diagnosis, advanced
information AD82.64-P-2000A
Troubleshooting
Complaint Possible cause Note Remedy
CD player with changer
(A2/6) completely
inoperativeVoltage supply of CD
player with changer (A2/6)Models 202, 208, 210 up
to 05/98 and models
124, 168
Model 163
Models 129, 202, 208,
210 as of 06/98AD82.64-P-6000-01A
&.3.2.( AD82.64
-P-
6000-01B) AD82.64-P-
6000-01C
CD player with changer
(A2/6), does not load or
eject CDsSingle CDs with adapter
loaded in CD magazine
Adhesive foil on CD has not
been removed Voltage
supply of CD player with
changer (A2/6)Models 202, 208, 210 up
to 05/98 and models
124, 168
Model 163
Models 129, 202, 208,
210 as of 06/98AD82.64-P-6000-01A
&.3.3.( AD82.64
-P-
6000-01B) AD82.64-P-
6000-01C
CD player with changer
(A2/6) does not respond
to controlsCD player with changer
(A2/6) Radio (A2) AD82.64-P-6000-02A

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Fig. 152: Voltage Supply, Testing Electrical System, CD Changer
OPERATING FUNCTION, TESTING ELECTRICAL SYSTEM, CD PLAYER WITH CHANGER - AD82.64-P-6000-02A
Model 124, 129, 163, 168, 202, 208, 210
CD PLAYER WITH CHANGER (CDC), TESTING ELECTRICAL SYSTEM - AD82.64-P-6000A
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
Scope of
testMeasuring
instrument/
Test
connectionOperation/RequirementSpecified
valuePossible
cause/Remedy
1.0 CD player
with
changer
(A2/6)
Operating
function
Model 124,
129, 163,
168, 202,
208, 210 Remove CD changer.
Disconnect and reconnect
coupling.
Ignition and radio: ON Operation is
possible
againCables
CD player with
changer (A2/6)
CD changer (CDC) diagnosis,
advanced information AD82.64-P-2000A
Switch off radio for
disconnecting and
connecting connectors
on the radio and CD
changer.

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