Mercedes Benz C 300 4MATIC # LI82-85_P-0455524 Date: 100310
Navigation Sys. - 'Universal Media Interface' Faults
Navigation 20: Route calculation takes a long time, implausible route calculation, implausible navigation instructions in tunnels
Topic number LI82.85-P-045552
Version 4
Design group 82.85 Navigation and communication systems (CNS, ICS, COMAND, FleetBoard)
Date 03-10-2010
Validity Model 204 with Audio 20 (code 510 or 523) and retrofitted Navigation 20
Reason for change Replacement part for USA/CAN market added
Reason for block
Complaint:
The "Navigation 20" (formerly called UMI) retrofit solution for navigation available through Mercedes Benz Accessories exhibits the following fault
profiles in navigation mode:
1. Recalculation of route takes a very long time.
2. Implausible route suggestions by classification (cheapest, quickest, shortest route).
377
3. Routes to roads classified for rescue vehicles cannot be calculated.
4. Implausible navigation instructions in tunnels.
Cause:
Software error in navigation module.
Remedy:
Perform software update on "Navigation 20" control unit (see attachment for procedure).
Note:
When the new software is installed, a map update must also be performed.
Attachments
Symptoms
Parts
Work units
Validity
378
379
380
381
Attachment - Instructions for software/map update USA
Navigation Sys. - 'Universal Media Interface' Faults
Navigation 20: Route calculation takes a long time, implausible route calculation, implausible navigation instructions in tunnels
Topic number LI82.85-P-045552
Version 4
Design group 82.85 Navigation and communication systems (CNS, ICS, COMAND, FleetBoard)
Date 03-10-2010
Validity Model 204 with Audio 20 (code 510 or 523) and retrofitted Navigation 20
Reason for change Replacement part for USA/CAN market added
Reason for block
Complaint:
The "Navigation 20" (formerly called UMI) retrofit solution for navigation available through Mercedes Benz Accessories exhibits the following fault
profiles in navigation mode:
1. Recalculation of route takes a very long time.
2. Implausible route suggestions by classification (cheapest, quickest, shortest route).
377
3. Routes to roads classified for rescue vehicles cannot be calculated.
4. Implausible navigation instructions in tunnels.
Cause:
Software error in navigation module.
Remedy:
Perform software update on "Navigation 20" control unit (see attachment for procedure).
Note:
When the new software is installed, a map update must also be performed.
Attachments
Symptoms
Parts
Work units
Validity
378
379
380
381
Attachment - Instructions for software/map update USA
