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Home >> Mercedes Benz >> 2015 >> G550 >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical Components -- Testing & Repair -- G-Class (463) >> Testing & Repair >> Remove/install operating, display and control unit - AR82.85-P-7472GM

Remove/install operating, display and control unit - AR82.85-P-7472GM

MODEL 463.243 /244 /245 /246 /250 /309 /322 /323 /332 /333 with CODE (ET4) COMAND operating and display system 

MODEL 463.247 /248 /254 /270 /303 /340 /341 up to 1.4.07 with CODE (ET4) COMAND operating and display system 

MODEL 463.249 up to 30.8.06, 463.271 up to 1.4.07 

Fig 1: Identifying COMAND Operating, Display And Controller Unit
G07705937Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying COMAND Operating, Display And Controller Unit Components
G07705938Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install    
1 Activate Service mode in Tele-Aid emergency call system Model 463.243/244/245/250/309/ 322/323/332/333
Model 463.247/248/254/270 up to 1.04.07 with code ET2 TeleAid car phone emergency call system
AR82.95-P-0005-03GR 
IMPORTANT Notes regarding the Tele-Aid emergency call system Model 463.243/244/245/250/309/ 322/323/332/333
Model 463.247/248/254/270 up to 1.04.07 with code ET2 TeleAid car phone emergency call system
AH82.95-P-0001-01GA
DANGER Risk of explosion  caused by oxyhydrogen gas. Risk of poisoning and caustic burns  caused by swallowing battery acid. Risk of injury  caused by burns to skin and eyes from battery acid or when handling damaged lead-acid batteries No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and glasses. Only pour battery acid into suitable and appropriately marked containers. AS54.10-Z-0001-01A
2 Disconnect battery ground line Except model 463.248 With code 979 Special protection version AR54.10-P-0003G
    Model 463.248 with code 979 Special protection version, with code ZS6 Special protection version FB6, with code E26 100 Ah additional battery, incl. cutoff relay
Model 463.248 with code 979 Special protection version, with code ZS7 Special protection version FB7, with code E26 Additional battery 100 Ah, incl. cutoff relay
AR54.10-P-0003PM
NOTES Notes on battery   AH54.10-P-0001-01A
3 Remove center instrument panel cover   AR68.10-P-3430GM
4 Remove lateral bolts on COMAND operating, display and controller unit (A40/3)    
5 Pull COMAND operating, display and controller unit (A40/3) out of center console    
6 Disconnect electric connectors on rear of COMAND operating, display and controller unit (A40/3) IMPORTANT Connector, RGB signals from TV tuner (1), connector, CAN to instrument cluster (2), connector, power supply (A),
connector, speakers (B),
connector, FM/AM antenna signal input (D), connector, global positioning system (GPS) antenna signal input (E),
connector, IF [ZF] signal output (F).
IMPORTANTInstallation:  If the antenna line at the connector for global positioning system (GPS) antenna signal input (E) is damaged, it must be replaced: ↓
Replace GPS antenna line on operating, display and control unit
AR82.85-P-7472-01GM 
7 Disconnect digital data bus connector (D2B) IMPORTANT Do not kink or stretch the fiber optic cable.  
NOTES Notes on fiber optic cable   AH82.70-P-0001-02A
8 Cover fiber optic cable IMPORTANT Fit connector for digital data bus (D2B) and equipment connector with caps. AR82.95-P-0005-01A 
9 Install in the reverse order    
10 Deactivate service mode in TELE AID emergency call system Model 463.243/244/245/250/309/ 322/323/332/333
Model 463.247/248/254/270 up to 1.04.07 with code ET2 TeleAid car phone emergency call system
AR82.95-P-0005-03GR 
IMPORTANT Notes regarding the Tele-Aid emergency call system Model 463.243/244/245/250/309/ 322/323/332/333
Model 463.247/248/254/270 up to 1.04.07 with code ET2 TeleAid car phone emergency call system
AH82.95-P-0001-01GA
11 Read out fault memory and erase IMPORTANT STAR DIAGNOSIS
Stored faults which may be caused by removed cables or by a simulation, must be processed and erased in the fault memories after completing the work.
 
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory   AD00.00-P-2000-04A
12 Perform basic programming   AR00.19-P-0200P