COMAND(R) - NTG 4, Intermittent No audio, 'Device Unavailable' NTG 4 COMAND no audio on startup. Satellite Radio displays "Device Unavailable" when selected Topic number L182.85-P-054716 Version 2 Design group 82.85 Navigation and communication Systems (CNS, ICS, COMAND, FleetBoard) Date 02-08-2013 Validity All Model 204, 207, 212 vehicles with NTG 4 Reason for change noted that Xentry software newer than 09/12 will work too. Complaint: Intermittently, no audio from any source on startup. Satellite Radio selection displays ~Device Unavailable on the COMAND Resetting the CAN will bring back functionality most of the time. Cause: SDARs software on Telematics DVD A 212 827 82 59 & A 212 827 89 59 on SDARs part number A171 870 XX XX Remedy: Mercedes-Benz A220 2020 Page 462 Backdate the SDAR's software using the following process: 1. Insert Telematics CD into COMAND a. For model 212, 207 vehicles, use A 212 827 72 59 b. For model 204 vehicles, use A 204 827 95 5...
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