COMAND(R) - Various Audio/Navigation Malfunctions
Date: May 8, 2009Order No.: P-B-82.60/382c
Supersedes: P-B-82.60/382b dated August 7, 2007
Group: 82
Revision History
Revision Date Purpose
c 5/8/09 Service Update CD Part Numbers Updated
b 8/7/07 New Software and Remedy Information Updated
a 5/18/06 Applicable Models / Remedy and Warranty Information Updated
- 9/28/04 Initial issue
SUBJECT:
Model 171.454/456/473, as of MY 2005
Model 211.026/056/065/070/076/082/083/087/256/265/276/282/283/287,
as of MY 2003
Model 219.375/376, as of MY 2006
COMAND Head Unit Mismatching Radio Stations or Frequency Bands, Disc Drive Errors, CD Changer Panel Stuck, Head Unit Resets, Navigation Destination Entry Errors and Various Audio Conditions
If you receive customer reports in the above model vehicles of the conditions listed below, the COMAND head unit software must be updated to version 29/08 using one of the above applicable Service Update Discs.
Note:
The Audio Gateway's (AGW) software version must be updated to at least version 08/05 using Star Diagnosis version 10/08 or newer.
COMAND Head Unit Conditions:
^ Telephone book entries are not completely downloaded into the head unit. The head unit may now handle up to 600 telephone book entries.
^ Remedy for destination entry in navigation: Intermittently, the user cannot enter a destination and Navi goes back to the base screen.
^ During start up, the head unit displays a certain radio station but actually plays another station within the same or different frequency band.
^ When the user is in radio mode, the station switches on its own usually to the lowest frequency or to the first preset if they are stored by the user.
^ Head unit resets (turns OFF and back ON).
^ Head unit hangs up and possibly resets during a telephone book down load in vehicles equipped with a Cellular Telephone System.
^ While the vehicles is running, the user cannot load an audio disc into the head unit Compact Disc (CD) player, or if the disc is accepted, it may not be played unless the ignition is turned OFF and then ON allowing MOST and CAN buses to go to sleep.
^ Intermittent audio not available at system start up for up to 30 seconds and the MB star hangs up on the head unit display.
Procedure 1 - COMAND Head Unit Software Update
Note:
The software update process is very sensitive, DO NOT press any buttons on the head unit, or turn the ignition OFF or ON at any time during the update process
1. Power up the COMAND head unit and select "Radio" mode, make sure the head unit's CD player is empty.
2. Press and release the Key Combination (1, 3, 8) on the head unit simultaneously.
3. When prompted, insert the correct Service Update Disc into the head unit disc player.
4. Wait a few seconds while the head unit detects the disc, you may be prompted to accept the software update. Press "OK" hardkey to start the update process.
5. When the update is complete, the head unit will eject the disc --> Remove the disc and wait as the head unit will automatically reboot. The update process is now complete.
Note:
If you did not remove the update disc from the head unit when the process is complete, the head unit may display a "CD error message", this is normal just remove the disc. The CD drive is not faulty
Procedure 2 - Audio Gateway Software Update
Check the Audio Gateway (AGW) software and update using the following path. Perform an AGW software update only if the AGW's software version is earlier than 08/05.
Connect DAS using version 04/07 or newer and navigate through the following menus: Control Units --> Information and communication --> Audio, video, navigation and telematics --> AGW - Audio Gateway (MOST network management, diagnosis gateway, radio tuner) --> Control unit adaptations --> Control module programming --> Determination of new control unit software and subsequent control unit programming -->
Follow the steps as guided by DAS to complete the software update
Special Tool Information
Note:
This is a required Special Tool and will be automatically released to every MBUSA dealer in July 2007. Additional quantities can be ordered at the dealer's discretion upon receipt of your initial units.
Note:
The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on August 7, 2007. Please refer to Netstar --> Star TekInfo --> Star Time for the most current labor time allowance.
In Case of Warranty, use the table above.