What could be wrong with my GPS Device? on 2004 Mercedes-Benz E500

The display on my device reads Device is Unavailable.

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1 answer
There are a number of things from problem with the disc or the NAV hardware, there are a number of known problems which the manufacture has released TSBs for, I would start by checking with the common known problems before check for the not so common problems. Here is a list that you can start with that may help, Jim
Description Potential Causes
Confirmed Fix
1. No audio from NAV, CD, radio, or phone from D2B (Domestic Digital Bus) system....
2004 Mercedes-Benz SL500 5.0L, V8, USA *
Test Details... Confirmed Fix Details...

Tests/Procedures: 1. Hook up factory compatible scan tool and Read/Record/Diagnose faults. Erase faults and function check audio system. 2. Look at "actual values" versus " specified values" in the command audio sy...

1 Confirmed fix

CD Changer
COMAND/Radio Control Module
Fiber Optic Cable
Navigation Control Module
Tele-Aid Control Module
Telephone Control Module
Wiring Harness Connectors


1 - Navigation Control Module
- Confirmed Fix - Exact Vehicle Match
- Confirmed Fix - Similar Vehicle Match * - A vehicle with the same engine as the one you selected.

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Hotline Archives for Same Engine Package +/- 2yrs : Hotline Fixes
Description Potential Causes
Confirmed Fix
1. Navigation does not recognize disc and disc does not eject....
2006 Mercedes-Benz E500 4Matic 5.0L, V8, Des 113.969, USA *
Test Details... Confirmed Fix Details...

Tests/Procedures: 1. Perform system reboot. Remove power and ground from drive unit. Wait 2 minutes and re-connect. Erase codes and function check operation. 2. Verify Navigation disc is correct application (C...


Audio Gateway Module
Navigation System Disc
Navigation Unit


* - A vehicle with the same engine as the one you selected.

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TSBs: Technical Service Bulletins Unedited OEM TSBs
OEM Number
Issue Date
Description

P-B-82.85/264
07/22/2003
NAVIGATION SYSTEM GUIDANCE ERRONEOUS OR DOES NOT FUNCTION DUE TO POSSIBLE SWITCH-OFF OR INCORRECT GPS SIGNALS DURING WORLDWIDE CRISIS SITUATIONS


S-B-65.00/02
05/14/2008
RETROFIT FOR ROOF REPLACEMENT OF THE TELEPHONE AND GPS ANTENNA WITH RELEVANT WIRING HARNESS


P-I-82.70/280
09/01/2003
VOICE ACTIVATED CELLULAR TELEPHONE INSTALLATION


P-B-82.85/301
02/02/2004
DTC D300 IN NAVIGATION SYSTEM


P-B-82.95/322A
04/01/2004
"TELE AID NOT ACTIVE" DISPLAYED IN INSTRUMENT CLUSTER - REVISED


P-I-82.85/322
04/01/2004
NAVIGATION SYSTEM INSTALLATION - SEDAN


P-I-82.85/321
04/01/2004
NAVIGATION SYSTEM INSTALLATION - WAGON


P-B-82.85/363+
05/27/2004
SWITCHING BETWEEN DAYLIGHT SAVINGS AND STANDARD TIME IN COMMAND


P-B-82.85/404
10/05/2004
NAVIGATION INACCURATE


P-B-82.85/374A
10/08/2004
SOFTWARE TO RESOLVE NAVIGATION ISSUES - REVISED