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Home >> Mercedes Benz >> 2021 >> GLA35 AMG >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Hydraulic & Mechanical System -- 247 Chassis (1 Of 2) >> Testing & Repair >> Remove/Install Rear Axle RPM Sensor - AR42.30-P-0716MFA

Remove/Install Rear Axle RPM Sensor - AR42.30-P-0716MFA

Model 118, 177, 243, 247 

Fig 1: Rear Axle RPM Sensor Components Location - Model 247 (Shown On Model 177 Left Side With Code U55)
G16142797Courtesy of MERCEDES-BENZ USA

Shown on model 177 on left side of vehicle with code U55 (Multi-link axle) 

WARNING Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REMOVINGINSTALLING Remove/install     
1 Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).    
2 Remove corresponding wheel and tire assembly.   AR40.10-P-1102MFA
3 Release electrical connector (1) and disconnect.    
4 Remove bolt (2). TORQUE SPECIFICATION Bolt, rpm sensor to wheel carrier *BA42.30-P-1001-02K 
5.1 Release catch tabs (3) and remove left rear axle rpm sensor (L6/3) or right rear axle rpm sensor (L6/4). Model 118, 177, 243, 247
with code U55 (Multi-link axle)
 
5.2 Remove left rear axle rpm sensor (L6/3) or right rear axle rpm sensor (L6/4). Model 177, 247
with code U54 (Compound-link axle)
 
INSPECT Check     
6 Check left rear axle rpm sensor (L6/3) or right rear axle rpm sensor (L6/4) for damage. If damage is present on left rear axle rpm sensor (L6/3) or right rear axle rpm sensor (L6/4),

replace left rear axle rpm sensor (L6/3) or right rear axle rpm sensor (L6/4).
 
7 Install in the reverse order.    
REAR AXLE RPM SENSOR

Number Designation Model 118 Model 177
BA42.30-P-1001-02K Bolt, rpm sensor to wheel carrier Nm 8 8
REAR AXLE RPM SENSOR

Number Designation Model 243 Model 247
BA42.30-P-1001-02K Bolt, rpm sensor to wheel carrier Nm 8 8