Telematics system shuts down completely at times and fault code D004 is saved in the AGW control unit - AF82.62-P-6004A

MODEL 171 with CODE (525) MB Audio 50 APS radio with CODE (810) Sound system

MODEL 171 with CODE (527) COMAND APS (with navigation) with CODE (810) Sound system

OPERATION NO. OF OPERATION TEXTS OR STANDARD TEXTS AND FLAT RATES

Category	Op. no.	Operation text	Time
P	541011	Perform quick test	004 WU
P	547989	Disconnect/reconnect ground cable at on-board electrical system battery (when disconnecting electrical connectors from circuit 30)	002 WU
P	827479	Replace audio gateway control unit (after check)	008 WU

Damage code	Cause	Remedy
82 669 94	The temperature in the audio gateway (AGW) control unit is too high.	1 Remove/install/replace AGW control unit
	Following a short cool down period, the telematics system is again active and operable. Telematic system failure is most likely too occur when the roof is open and the volume turned up high. Fault code "D004" is stored in the AGW control unit.	Use AGW control unit with built-in fan.

PARTS ORDERING NOTES

Part no.	Designation	Quantity
A 211 870 14 89	Audio gateway Sound ECE, Audio gateway Sound with fan ECE	1
A 211 870 15 89	Audio gateway Sound USA, Audio gateway Sound with fan USA	1
A 211 870 16 89	Audio gateway Sound Japan, Audio gateway Sound with fan Japan	1