Remove/install wiper motor - AR82.30-P-6800GM

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: Removing/Installing Wiper Motor

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury caused by moving parts that can pinch, crush or, in extreme cases even sever extremities.	Always remove ignition key when working on windshield wiper mechanism.	AS82.30-Z-0001-01A
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	All models 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	Remove differential lock solenoid valve (longitudinal equalization) (Y68), differential lock solenoid valve (rear axle) (Y68/1) and differential lock solenoid valve (front axle) (Y68/2) from holder (1) and place to one side	Vacuum lines connectors can break easily. For all work on differential lock solenoid valve (longitudinal equalization) (Y68), differential lock solenoid valve (rear axle) (Y68/1) and differential lock solenoid valve (front axle) (Y68/2), electrical connectors and vacuum lines (if necessary) are to be identified before removal in such a manner as to avoid mix up.
	Risk of poisoning  caused by swallowing brake fluid. Risk of injury  caused by brake fluid coming into contact with skin and eyes.	Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.	AS42.50-Z-0001-01A
4	Remove expansion reservoir (2) from mount (1) and lay down to side in vertical position	Ensure that the brake fluid does not escape. Brake fluid running out leads to damage caused by corrosion and decomposition.
5	Remove clutch from ATA [EDW] hood switch (S62)
6	Unscrew mount (1) from mounting points (arrows)
7	Remove fastener for ventilation lines from holder (1) and remove holder (1)	Slide ventilation lines below refrigerant line (4) and lay down to side.
8	Remove wiper motor cap (3) from wiper motor (M6/1)
9	Detach electrical connector from wiper motor (M6/1)
10	Unscrew wiper motor (M6/1) at mounting points (arrows)		*BA82.30-P-1001-01B
11	Pull wiper motor (M6/1) towards front and pry off of wiper crank (6) through firewall opening of wiper linkage (5)	In doing so, do not bend the wiper linkage (5) or rotate it, otherwise it will be damaged.
12	Completely remove wiper motor (M6/1)
13	Install in the reverse order	Installation:  Before attaching wiper arms, switch wiper system on and off again one time. Switch off ignition only after wiper motor has stopped.
14	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
15	Read out fault memory and erase	STAR DIAGNOSIS Stored faults which can result from cables being disconnected or from simulation during removal and installation or test work, have to be processed and erased in the fault memories after completing the work.
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
	Checking
16	Check wiper blade park position	In the park position the wiper blades should not obstruct the driver's field of view.
17	Carry out function check
18	Perform basic programming		AR00.19-P-0200P