2013 Mercedes Benz Truck GLK 350 4MATIC Becker MAP PILOT: Message "No navigation module connected" appears in the display fault code 953B
Vehicle: All Technical Service Bulletins Navigation Becker(R)MAP PILOT 'No Navigation Module Connected Becker MAP PILOT: Message "No navigation module connected" appears in the display Version 2 Design group 82.61 Auto pilot system (APS), Audio 30 APS Date 04242013 Validity Model 117, 166, 172, 176, 204, 207, 212, 218, 242, 246 with Becker MAP PILOT (code 509) or preinstallation for Becker MAP PILOT (code 508) Reason for change Complaint: The Audio/COMAND display (A40/8) of the Becker MAP Pilot continuously or intermittently shows the message "No navigation module connected".. This message appears even though the navigation module (A2/30) is correctly locked in the bracket (A2/301) in the glove box. Cause: 1.) Software in navigation module (A2/30). 2.) The tightening torque of the threaded connection between the bracket (A2/301) and the glove box is too high. This leads to mechanical stress between the bracket (A2/301) and the navigat...