Remove/install overhead control panel control unit - AR82.20-P-1000GM

MODEL 463.202 /222 /236 /237 /243 /244 /245 /246 /247 /248 /249 /250 /254 /270 /271 /303 /306 /309 /322 /323 /332 /333 /336 /340 /341 /346 

Fig 1: Identifying Overhead Control Panel Control Unit

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Activate service mode in Telematic Alarm Identification on Demand (emergency call system) (TELE AID)	Only on model 463.243/244/245/250/309/ 322/323/332/333 with code (ET2) Tele-Aid - car telephone emergency call system, 463.247/248/254/270 up to 1.4.07 with code (ET2) Tele-Aid - car telephone emergency call system	AR82.95-P-0005-03GR
	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 1.4.07	AH82.95-P-0001-01GA
	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 463.236/248 with code (979) Special protection version	AR54.10-P-0003G
		Model 463.236/248 with code (979) Special protection version, with code (ZS6) Special protection version FB6, with code (E26) Additional battery 100 Ah incl. cutoff relay Model 463.236/248 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 on battery	All models	AH54.10-P-0001-01A
3	Pry out overhead control panel control unit (N70) at rear (arrows)		Fig 2
4	Swivel overhead control panel control unit (N70) downwards by about 45°
5	Pull overhead control panel control unit (N70) from the front guide
6	Disconnect electrical connectors from overhead control panel control unit (N70)
7	Install in the reverse order
8	Deactivate service mode in Telematic Alarm Identification on Demand	Only on model 463.243/244/245/250/309/ 322/323/332/333 with code (ET2) Tele-Aid - car telephone emergency call system, 463.247/248/254/270 up to 1.4.07 with code (ET2) Tele-Aid - car telephone emergency call system	AR82.95-P-0005-03GR
	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 1.4.07	AH82.95-P-0001-01GA
9	Check all functions of the overhead control panel control unit (N70)
10	Read out fault memory, erase if necessary	Stored faults which may be caused by assembly work, test work, removed lines or a simulation, must be processed and erased in fault memories after completing the work.
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A

Fig 2: Identifying Long Wedge (115 589 03 59 00)

Courtesy of MERCEDES-BENZ USA