Wednesday, May 29, 2019

Mercedes-Benz A220 2020 Technical Service Bulletin # 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).



Mercedes-Benz A220 2020 Page 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



Mercedes-Benz A220 2020 Page 378



Mercedes-Benz A220 2020 Page 379



Mercedes-Benz A220 2020 Page 380



Mercedes-Benz A220 2020 Page 381



Attachment - Instructions for software/map update USA

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