Replacing core plugs in crankcase - RA01001041400X(01-1400)

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:

Attached parts in area of core plugs removed.

Coolant drained (20-0100) .

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

01-8501-8741

Fig 1: Identifying Core Plugs In Crankcase

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Core plug (121)	remove (steps 1 and 2).
Core plug hole	clean with activator, combi-pack 002 989 09 71.
Core plug hole	coat with sealant 002 989 45 20 10.
Core plug (121)	Knock in with drift, special tool 102 589 00 15 00.
Sealant	allow to harden.
Engine	check for leaks.

Special tool

Fig 2: Identifying Special Tool (102 589 00 15 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Replacing

Use a screwdriver to knock core plug (121) in on one side until it has turned.

Fig 3: Identifying Knock Core Plug
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Grasp core plug (121) at the collar and remove.

Fig 4: Identifying Grasp Core Plug
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Thoroughly clean core plug hole. Spray the sealing surface with activator. Sealing surface must be free of grease.
Coat core plug with sealant 002 989 45 20 10.

Fig 5: Locating Sealing Surface Of Core Plug
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Knock in new core plug flush using the insertion drift 102 589 00 15 00.
NOTE: Allow the sealant to cure for approximately 45 minutes before pouring in coolant.
Run engine to warm up and check for leaks.

Fig 6: Knocking Core Plug Flush Using Insertion Drift
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.