Replacing front crankshaft radial seal - AR03.20-P-3000HA

ENGINE 605, 606 in MODEL 124 

ENGINE 606.961 in MODEL 140 

ENGINE 604, 605 in MODEL 202 

ENGINE 602.982, 604, 605, 606.912 /962 in MODEL 210 

ENGINE 606.964 in MODEL 463 

ENGINE 602.983 in MODEL 461 

Fig 1: Identifying Front Crankshaft Radial Seal Components (1 Of 2)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Identifying Front Crankshaft Radial Seal Components (2 Of 2)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removing, installing
1.1	Remove radiator (8)	Model 124 with engine 606	AR20.20-P-3865HA
		Model 210 with engine 606.912
		Model 210 with engine 606.962	AR20.20-P-3865HB
		Model 461 with engine 602.983	AR20.20-P-3865GH
		Model 463 with engine 606.964	AR20.20-P-3865GG
2	Remove belt pulley of coolant pump (10)	Fit poly V-belt onto the belt pulley and attach counterholder for slackening the bolts
			Figure
		Engine 602.982/983	*BA20.10-N-1001-01B
		Engine 604, 605, 606	*BA20.10-P-1001-01A
3	Install retaining lock (3) for crankshaft / ring gear	Use bolts (4)M6x90 (supplied) otherwise the threads in the rear end cover will be damaged	AR03.30-P-5000HA
4	Remove belt pulley / vibration damper (12)		AR03.30-P-1600HA
	Modified parallel key (metal version) for hub at crankshaft		BT03.20-P-0001-01A
5	Use a screwdriver to press out radial seal (20)	Do not damage crankshaft and mounting hole for the radial seal; use clean rags as a base
		Installation:  install front crankshaft radial seal	AR03.20-P-3000-01AX
			Figure
	Front crankshaft radial seal with reduced radial compression stress		BT03.20-P-0002-01A
6	Install in the reverse order
	Risk of accident  as a result of vehicle starting off when engine running. Risk of injury  as a result of bruises and burns if you insert your hands into engine when it is being started or when it is running.	Secure vehicle to prevent it starting off. Wear closed and close-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
7	Run engine and inspect for leaks

Coolant pump, thermostat

Coolant pump, thermostat

Fig 3: Identifying Counterholder (603 589 00 40 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 4: Identifying Insertion Tool (611 589 00 14 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.