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Home >> Mercedes Benz >> 1992 >> 300SD >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System - 140 Chassis >> Testing & Repair >> Remove/install viscous fan clutch - AR20.40-P-5660HW

Remove/install viscous fan clutch - AR20.40-P-5660HW

ENGINE 601 in MODEL 124, 201 

ENGINE 602 in MODEL 124, 201 

ENGINE 603 in MODEL 124, 126, 140 

Fig 1: Identifying Viscous Fan Clutch Removal/Install Components - Engine 602 In Model 124, 201
G04715276Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
REMOVINGINSTALLING Remove, Install    
1.1 Remove the fan shroud (3) and put it above the fan (1) For vehicles with a one-piece fan shroud  
1.2 Turn the fan shroud ring (3a) from the locking studs on the fan shroud, remove together with the fan shroud In case of vehicles with split fan shroud
IMPORTANTInstallation:  Ensure that the fan shroud ring (3a) is correctly located in the locking studs of the fan shroud (3).
 
2 Insert the counterholder (9) at the coolant pump belt pulley SPECIAL TOOL Figure
3 Unscrew the viscous fan clutch (2) with the fan (1) and remove SPECIAL TOOL Loosen the center screw with a screw driver (6) or with a screw driver bit (7) and torque wrench (8). Figure
    SPECIAL TOOL Figure
    SPECIAL TOOL Figure
    IMPORTANT Remove the viscous fan clutch together with the fan shroud.  
    TORQUE SPECIFICATION *BA20.40-P-1002-01A 
    TORQUE SPECIFICATION *BA20.40-P-1003-01A 
4 Unscrew the fan (1) at the viscous fan clutch (2) IMPORTANTInstallation:  The installation position of the fan is marked by the lug on the fan ring and by the marking "VORNE FRONT" (in the direction of travel on the fan ring).  
    TORQUE SPECIFICATION *BA20.40-P-1001-01A 
5 Install in the reverse order    
TORQUE SPECIFICATION FAN, FAN CLUTCH

Number Designation Engines 601, 602 except 602.98, 603
BA20.40-P-1001-01A Bolt of fan to viscous fan clutch NM 10
BA20.40-P-1002-01A Tighten bolt between viscous fan clutch and bearing liner using approved special tool NM 40
BA20.40-P-1003-01A Tighten bolt between viscous fan clutch and bearing liner using screwdriver and torque wrench NM 45
Fig 2: Identifying Counterholder (603 589 00 40 00)
G04715277Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 3: Identifying Screwdriver (120 589 14 07 00)
G04715278Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 4: Identifying Torque Wrench (001 589 72 21 00)
G04715279Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fig 5: Identifying Screwdriver Bit (103 589 01 09 00)
G04715280Courtesy of MERCEDES-BENZ OF NORTH AMERICA.