Removing and installing oil pressure relief valve (oil pump) - RA18001192150X(18-2150)

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.

Preceding work:

Bottom engine compartment panel removed

(Maintenance Manual 6190).

Extract or drain engine oil (18-0020) .

Model 140. Oil sump removed (01-3100) .

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

18-5042

Fig 1: Identifying Oil Pressure Relief Valve (Oil Pump)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Bottom part of oil sump (1)	unbolt, seal, bolt on (10 Nm).
Screw plug (5) of oil pressure relief valve	unscrew, screw on (40 Nm). Screw plug (5) is pressurized by spring (4).
Spring (4), guide pin (3), control plunger (2)	remove, install.

Special tools

Fig 2: Identifying Special Tool (001 589 66 21 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Identifying Special Tool (116 589 02 07 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.