Replace front crankshaft radial sealing ring - AR03.20-P-3000MM

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2013 Mercedes-Benz S65, 2013 Mercedes-Benz S63, 2013 Mercedes-Benz S600, 2013 Mercedes-Benz S550, and 2013 Mercedes-Benz S350. However, it is still accessible from the selected car via links, so may be relevant.

ENGINES 157, 278 in MODEL 216

ENGINES 157, 276, 278 in MODEL 221

Fig 1: Replacing Front Crankshaft Radial Sealing Ring

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove belt pulley/vibration damper (8)		AR03.30-P-1600MM
2	Press out crankshaft radial sealing ring (5) from the mounting bore using a screwdriver	Do not damage crankshaft and mounting bore. Use a clean rag as a base while pressing out; otherwise there can be leakage.
		Install front crankshaft radial sealing ring (5).	AR03.20-P-3000-01MM
			Fig 2
	Checking
3	Check contact surface of crankshaft radial sealing ring (5) at hub of belt pulley/vibration damper (8)	In the case of score marks and galling, replace belt pulley/vibration damper (8).
4	Install in the reverse order
5	Check engine oil level; correct if necessary		AP18.00-P-0101SX
	Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
6	Carry out an engine test run and check engine for leaks		AS00.00-Z-0005-01A

Fig 2: Identifying Sleeve (119 589 01 14 00)

Courtesy of MERCEDES-BENZ USA