ML 63 AMG (164.177) V8-6.3L (156.980) (2007)
Auxiliary Input / Output Jack: All Technical Service Bulletins
Audio/Navigation Sys. - Volume In AUX Menu Is Too Low
AUDIO AUX: VOLUME IN AUX MENU IS TOO QUIET
Topic Number
LI82.85-P-047991
Version
1
Design Group
82.85 Navigation and communication systems (CNS, ICS, COMAND, Fleetboard)
Date
09-22-2009
Validity
Models 204, 207, 212, (NTG4)
Models 169, 245, 171, 230, 211, 219, 164, 251 and 203.7 with code 525, 511, 527, or 512 and 809 (NTG2.5)
Model 463 with code EU1
Reason for change
Reason for block
Complaint:
Different volume levels between AUX IN and radio or CD/DVD playback.
During audio playback from external MP3 player via the AUX jack, the audio volume in the vehicle maybe too quiet. When switching from the AUX
source to radio or CD/DVD the volume is too loud for the customer. Traffic announcements (if equipped) are also too loud when an AUX audio source
is active.
Cause:
The volume level of the MP3 player is too low.
Remedy:
Update the software in the head unit with DAS/Xentry Diagnostics.
NOTE;
As of the software releases listed below, the customer can choose between "Standard" and "Boost Mode" in the "Volume" menu in the AUX application.
In vehicles with Media interface option (518) the software 47/08 is required in the media interface control unit for this new function to operate correctly.
This software update for the rest of the telematics control units is launched automatically after the head unit software update.
Additional information on production changes:
Model 204
In vehicles as of model year 2010 (SA code:800; series production breakpoint 06/2009) an adjustment option for the AUX source is implemented in all
head unit versions per below:
^ Audio 20 (standard) radio head unit as software version 12/09
^ COMAND head unit as of software version 09/09
This software is available for vehicles up to and including model year 2009 (SA code 809) as of DAS 09/2009 + telematics A204 827 71 59
Models 212, 207
In vehicles as of model year 2011 (SA code: 801; series production breakpoint 06/2010) an adjustment option for the AUX source is implemented in all
head unit versions.
This software is available for vehicles up to and including model year 2010 (SA code 800); as of telematics CD version 09/2010 (CD part number will
be provided).
Models 169, 245, 171, 230, 211, 219, 164, 251, 463, 203.7
In vehicles of of model year 2010 (SA code: 800; series production breakpoint 06/2009) and adjustment option for the AUX source is implemented in
the Audio 50 APS and COMAND APS. This function is not available in the Audio 20.