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Home >> Mercedes Benz >> 1990 >> 300SL Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Wiper/Washer Systems >> Electrical System - Body -- 129 Chassis >> Testing & Repair >> Removing and installing wiper motor - AR82.30-P-6800B >> Notes

Removing and installing wiper motor - AR82.30-P-6800B: Notes

MODEL 129 

Fig 1: Identifying Wiper Motor Components
G04688603
REMOVING Removal     
DANGER Injury hazard  Windshield wiper mechanism 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 Withdraw ignition key    
2 Remove cover on air intake   ra83001240140x
3 Remove cover (11)    
4 Remove hose from side cover (11)    
5 Move wiper system to maximum extension    
6 Remove wiper arm IMPORTANT Pull plastic cover (1) downward, unscrew screw (2) and remove wiper arm.  
N Unscrew nuts (3)    
8 Unscrew screws (4)    
9 Open cable strap (5)    
10 Press connector off relay (K26) IMPORTANT Remove connection and disconnection aid and move input (E) in connector frame.  
11 Remove wiper motor with gear IMPORTANT Slide wiring harness with rubber grommet through firewall and remove wiper motor with gear.  
12 Remove nut (6) and press off crank arm (7)    
13 Remove screws (8) and wiper motor    
INSTALLING Installation     
14 Move wiper motor to park position IMPORTANT For this purpose connect wiper motor to wiring harness and actuate combination switch once with ignition switched ON until wiper motor is in park position.  
15 Install wiper motor on linkage TORQUE SPECIFICATION *BA82.30-P-1001-01E 
16 Install crank arm on wiper motor shaft TORQUE SPECIFICATION
IMPORTANT Position crank arm on wiper motor shaft and install nut (6). Linkage (A) must be positioned vertically over center of wiper motor shaft.
*BA82.30-P-1002-01E 
17 Install wiper motor wiring harness IMPORTANT Slide wiring harness with rubber grommet through firewall, route and fasten with cable strap (5).  
18 Press connector onto relay (K26) IMPORTANT Complete connection and disconnection aid.  
19 Install wiper motor IMPORTANT Position wiper motor, tighten nuts (3) only slightly and screw in screws (4).  
20 Adjust distance between wiper gear head and windshield Adjust distance A only. AR82.30-P-6400-01A 
*BE82.30-P-1001-01A 
    SPECIAL TOOL Figure
21 Tighten nuts (3)    
22 Install wiper arm and screw in screw (2)    
23 Install plastic cover (1) IMPORTANT Press plastic cover upward until it catches.  
24 Move wiper arm to center position    
25 Adjust distance between wiper arm and wiper blade Adjust distance B only. AR82.30-P-6400-01A 
*BE82.30-P-1002-01A 
    SPECIAL TOOL Figure
26 Install cover on air inlet   ra83001240140x
TEST AND ADJUSTMENT VALUES, WINDSHIELD WIPER

Number Designation Model 129
BE82.30-P-1001-01A Dimension Distance "A" between wiper gear head and windshield mm 5
See figure AR82.30-P-6400-01A 
BE82.30-P-1002-01A Dimension Distance "B" between wiper arm and wiper blade mm 5
See figure AR82.30-P-6400-01A 
TORQUE SPECIFICATION WINDSHIELD WIPER

Number Designation Model 129
BA82.30-P-1001-01E Screw on wiper motor Nm 5
BA82.30-P-1002-01E Nut on wiper motor shaft Nm 19
Fig 2: Identifying Special Tool (129 589 03 21 00)
G04688604