Mercedes-Benz ML320. Service manual — part 267

MB Radio Audio 30 RDS
as of 06/98

GF82.60-P-0001-02P

MB Audio 30 APS radio GF82.61-P-0002-03A

MB Radio Audio 10 RDS
as of 07/99

GF82.60-P-0001-02T

Location and assignment
of cables and connectors

Model 168

GF00.19-P-1000GC

Model 170

GF00.19-P-1000B

Summary of electric
wiring diagrams

Model 208

PE82.00-P-1100D

Model 202

PE82.00-P-1100D

Model 163

PE82.00-P-1100E

Model 168

PE82.00-P-1100GC

Model 170

PE82.00-P-1100B

Model 210

PE82.00-P-1100A

Model 202 up to 05.97
and models 124, 129, 140

Group 82

Connection and use of
test equipment

AD00.00-P-1000AZ

Tools, testing electrical
system, radio (RD)

AD82.60-P-2000-01A

Radio connections,
testing electrical system,
radio (RD)

MB radio in models 129,
168, 170, 202, 208, 210
up to 05/98 and models
140, 163

AD82.60-P-2000-02A

MB APS radio and
navigation operating unit
in models 129, 140, 210
up to 12/97

AD82.60-P-2000-02B

MB APS radio and
navigation operating unit
in models 129, 140, 202,
210 as of 01/98

AD82.60-P-2000-02C

MB radio code 750a, 753,
756a in models 129, 168,
170, 202, 208, 210 as of
06/98

AD82.60-P-2000-02D

MB APS radio and
navigation operating unit
in models 168, 170

AD82.61-P-2001-02A

Adjusting radio and
navigation operating unit
to loudspeaker system,
testing electrical system,
radio (RD)

MB APS radio and
navigation operating unit
in models 129, 140, 210
up to 12/97

AD82.60-P-2000-03A

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

RADIO (RD) DIAGNOSIS, FUNCTION CHECK - AD82.60-P-3000A

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

RADIO (RD) DIAGNOSIS, TROUBLESHOOTING - AD82.60-P-5000A

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

Function notes, radio
(RD)

Model 129

AD82.60-P-2000-04A

Radio (RD) diagnosis, advanced
information

AD82.60-P-2000A



Battery voltage 11-14 V



Fuses okay

Function check

Scope of test

Operation/Requirement

Specified value

Possible cause/
Remedy

1
Radio functions in
accordance with
Owner's Manual

Radio: ON
Set station with good reception
(music) or play music cassette or
CD.
Fader, bass, treble and balance in
position 0 (readout in display).
Perform all control functions

Radio reception,
cassettes/CD
operation, loudness,
sound and readouts in
display must be
faultless

Local and

atmospheric
influences must be
taken into account
with radio reception.
They may cause
interference and poor
radio reception.

AD82.60-P-5000A
Models 129, 170,202,
208, 210 as of 06/98
with digital data bus
(D2B): ?
AD82.60-P-4000A

Radio (RD) diagnosis,
previous knowledge

AD82.60-P-2000A

Troubleshooting

Complaint

Possible cause

Note

Remedy

Radio completely
inoperative

Voltage supply for radio
(A2) or APS radio and

AD82.60-P-6000-01A

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

navigation operating unit
(A2/29)

No readout in display

Voltage supply for radio
(A2) or APS radio and
navigation operating unit
(A2/29)

AD82.60-P-6000-01A

Cassette operation
inoperative

Voltage supply for radio
(A2) or APS radio and
navigation operating unit
(A2/29)

AD82.60-P-6000-01A

CD operation in radio
(A2) inoperative

Voltage supply for radio
(A2) with CD compartment

AD82.60-P-6000-01A

CD operation, CD
changer (A2/6)
completely inoperative

Voltage supply for radio
(A2) or APS radio and
navigation operating unit
(A2/29)
Voltage supply, CD changer
(A2/6)

MB radio and CD
changer
Models 129, 140, 168,
202, 208, 210 up to
05/98
Models 124, 163
MB APS radio and
navigation operating unit
and CD changer
Models 129, 140,202,
210

AD82.60-P-6000-01A
AD82.60-P-6000-01B

CD operation, CD
changer (A2/6)
completely inoperative

Voltage supply for radio
(A2) or APS radio and
navigation operating unit
(A2/29)
Voltage supply, CD changer
(A2/6)

MB radio and CD
changer
Models 129, 140, 168,
202, 208, 210 as of
06/98
MB APS radio and
navigation operating unit
and CD changer
Model 168

AD82.60-P-6000-01A
AD82.60-P-6000-01C

Left front loudspeaker
inoperative

Radio (A2) or APS radio
and navigation operating
unit (A2/29), loudspeaker

AD82.60-P-6000-02A

Right front loudspeaker
inoperative

Radio (A2) or APS radio
and navigation operating
unit (A2/29), loudspeaker

AD82.60-P-6000-03A

Left rear loudspeaker
inoperative

Radio (A2) or APS radio
and navigation operating
unit (A2/29), loudspeaker

AD82.60-P-6000-04A

Right rear loudspeaker
inoperative

Radio (A2) or APS radio
and navigation operating
unit (A2/29), loudspeaker

AD82.60-P-6000-05A

Radio interference

Radio (A2) or APS radio
and navigation operating

AD82.60-P-6000-06A

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

VOLTAGE SUPPLY, TESTING ELECTRICAL SYSTEM, RADIO (RD) - AD82.60-P-6000-01A

Fig. 115: Voltage Supply, Testing Electrical System, Radio (RD)

VOLTAGE SUPPLY, TESTING ELECTRICAL SYSTEM, RADIO (RD) - AD82.60-P-6000-01B

MB radio and CD changer, code 819 in models 129, 140, 168, 202, 208, 210 up to 31.05.98 and in models
124, 163 MB APS radio and navigation operating unit and CD changer, code 819 in models 129, 140, 202,
210

unit (A2/29), antenna

Poor radio reception

Radio (A2) or radio and
navigation operating unit
(APS) (A2/29), antenna,
coverage

AD82.60-P-6000-07A

Automatic antenna
(M11) inoperative

Radio (A2) or radio and
navigation operating unit
(APS) (A2/29), automatic
antenna (M11)

Except

AD82.60-P-6000-08A

only

AD82.60-P-6000-08B

Speed-sensitive loudness
control (GAL)
inoperative

Radio (A2) or radio and
navigation operating unit
(APS) (A2/29), vehicle
speed signal

Except model 163

AD82.60-P-6000-09A

Radio or radio and
navigation operating unit
illumination inoperative

Radio (A2) or radio and
navigation operating unit
(APS) (A2/29)

AD82.60-P-6000-10A

Radio mute circuit
(Mute) inoperative when
using phone

Radio (A2) or radio and
navigation operating unit
(APS) (A2/29), telephone
system

AD82.60-P-6000-11A

With auto pilot system
(APS): No fader
function or loudspeaker
sound quality inadequate

Radio and navigation
operating unit (APS)
(A2/29) not tuned to
loudspeaker system

Models 129, 140, 210 up
to 31.12.97

AD82.60-P-2000-03A

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me