Removing and installing poly V-belt pulley (fan assembly) - ra150a1405700x(5700)

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

Model 140, Engines 104, 603 with compact generator

Operation no. of operation texts and work units or standard texts and flat rates:

Engines 104, 603 with compact generator

Preliminary work:

Poly V-belt slackened (13-3420) .

Engine compartment paneling removed (61-0105) on engine 104

Front noise encapsulation removed (94-5310) on engine 603.

Fig 1: Identifying Poly V-Belt Pulley, Collar Nut And Shaft

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Quiescent current retention unit	disconnect, connect.
Ground cable at battery	disconnect, connect.
Collar nut (1)	unscrew, screw on, tightening torque 80 Nm. Use socket (10 mm) with internal serrations together with reversing ratchet to hold the shaft (2).
Poly V-belt pulley (3)	take off, fit on.

The poly V-belt pulley (3) is subject to very diverse stresses. The level of the stresses depends primarily on driving conditions. For this reason, when reconditioning generators after mileages of more than 60,000 (100,000 km) also renew the poly V-belt pulley (3).

COMMERCIALLY AVAILABLE TESTER

Quiescent current retention unit

e.g. Hans Zeheter CMP 12.2

Special tool

Fig 2: Identifying Special Tool (000 589 10 99 01)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.