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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electrical System - Engine - 257 Chassis >> Testing & Repair >> Remove/Install Crankshaft Hall Sensor - AR15.12-P-2136MSA

Remove/Install Crankshaft Hall Sensor - AR15.12-P-2136MSA

Engine 256.9 in model 213, 238, 257, 290 

Fig 1: Crankshaft Hall Sensor Component Location - Engine 256.9 In Model 257
G14548258REMOVINGINSTALLINGTORQUE SPECIFICATIONTORQUE SPECIFICATIONINSPECTREFER TO SELF-DIAGNOSTIC SYSTEMSREFER TO SELF-DIAGNOSTIC SYSTEMSREFER TO SELF-DIAGNOSTIC SYSTEMSWARNINGCourtesy of MERCEDES-BENZ USA
Topical note Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Remove center and rear lower engine compartment lining. Engine 256.9 in model 213, 238 AR61.20-P-1105LWE
    Engine 256.9 in model 290 AR61.20-P-1105FRX
    Engine 256.9 in model 257 AR61.20-P-1105FR
2 Remove left bracket of 48 V wiring harness from transmission and place to one side. TORQUE SPECIFICATION M6X1 *BA00.10-P-1002-04A 
3 Release and disconnect electrical connector (2).    
4 Remove screw (1). TORQUE SPECIFICATION Bolt, position sensor for crankshaft to crankcase/oil pan *BA15.10-P-1001-03I 
5 Remove crankshaft Hall sensor (B70).    
6 Install in the reverse order.    
INSPECT Check     
7 Read out and delete fault memory.    
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 213 AD00.00-P-2000-04B
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 238 AD00.00-P-2000-06LWO
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 257, 290 AD00.00-P-2000-06FR
WARNING 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
8 Perform an engine test run and check the engine for proper function.    
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1002-04A M6X1 Nm 9 13
POSITION SENSOR

Number Designation Engine 256.9
BA15.10-P-1001-03I Bolt, position sensor for crankshaft to crankcase/oil pan Nm 7