Installing rear crankshaft radial seal - AR03.20-P-3063-01A

Fig 1: Identifying Insertion Tool (111 589 08 43 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Deburr the edge of the mounting bore for the radial seal and clean mounting bore (arrow).
Examine the contact surface of the radial seal on the crankshaft flange.
If a wear groove from the old radial seal exists on the crankshaft, use the insertion tool with shoulder (repair position) for pressing in the new radial seal.

The radial seal is pressed in a further 3 mm if the insertion tool for repair position is used.

Fig 2: Identifying Rear Crankshaft Radial Seal
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Bolt inner part of insertion tool (2) onto the crankshaft.
Coat the sealing lip of the radial seal (21) and the mating contact surface with engine oil.
Do not use grease.

Grease prevents the oblique webs on the sealing lip transporting back the engine oil.
Fit radial seal (21) onto the inner part of the insertion tool (2).

Fig 3: Identifying Radial Seal
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Press radial seal (21) into the end cover as far as the stop using the insertion tool (1). Ensure that the crankshaft radial seal is correctly located.

Fig 4: Identifying Insertion Tool
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.