Installation notes for crankshaft radial shaft seals - AH03.20-P-0001-01AO
WARNING: This page does not describe the selected car, but rather 199 other vehicles, including the 2020 Mercedes-Benz SLC300, 2020 Mercedes-Benz SL550, 2020 Mercedes-Benz SL450, 2020 Mercedes-Benz S65 AMG, and 2020 Mercedes-Benz GLA250. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE 120
Insertion tool
Use assembly sleeve 117 589 00 43 00 only (2nd version) with bore for locating pin.
Assembly sleeve 117 589 00 43 00 (1st version) can be modified by drilling to dimensions "A, B, C" to match the drawing.
Dimension A =38 mm
B = 15.6 mm
C = 10 mm
The end cover routes the engine oil from the main oil duct (arrow) to the two oil ducts for the cylinder head oil supply, and it is sealed off with a seal.
The lower edge of the end cover is sensitive to distortion (oil leak). This is why the radial sealing ring on the end cover fitted to the cylinder crankcase should only be replaced using insertion tool 117 589 00 43 00. If leaks occur at the rear, prop up the engine, allow it to drain and locate the leak