Remove/install crankshaft Hall sensor - AR15.12-P-2136MT

ENGINE 270 in MODEL 117, 156, 176, 242, 246.2 

Fig 1: Crankshaft Hall Sensor Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove engine compartment paneling		AR61.20-P-1105NKB
2	Remove heat shield on front axle carrier		AR46.20-P-0602NKB
3	Remove heat shield at steering gear		AR46.20-P-0602NKB
4.1	Remove heat shield (2) for side shaft; to do this remove screw/bolts (2s) and unclip heat shield (2) on clamp	ENGINE 270 in MODEL 117, 156, 176, 242, 246.2 without CODE M005 (4MATIC) Ensure that clamp on the heat shield (2) is mounted correctly.
4.2	Unfasten heat shield (2) for side shaft and set aside; to do this remove screw/bolts (2s) and unclip heat shield (2) on clamp	ENGINE 270 in MODEL 117, 156, 176, 242, 246.2 with CODE M005 (4MATIC) Ensure that clamp on the heat shield (2) is mounted correctly.
5	Remove crankshaft Hall sensor (B70); remove screw/bolt (1s) to do this	Screw/bolt, crankshaft position sensor to crankcase	*BA15.10-P-1001-03I
6	Install in the reverse order
	Check
	Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
7	Perform an engine test run and check engine for leaktightness

POSITION SENSOR

Number	Designation		ENGINE 270
BA15.10-P-1001-03I	Screw/bolt, crankshaft position sensor to crankcase	Nm	9