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Home >> Mercedes Benz >> 2010 >> C63 >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes - General Information - C63/C350 (204) >> General Information >> Notes on installing brake wear indicator contact sensors - AH42.10-P-0003-01CW

Notes on installing brake wear indicator contact sensors - AH42.10-P-0003-01CW

There is only one variant on the front axle:

One brake wear sensor on the right-hand side of the vehicle.

When replacing the brake pads, the brake wear sensor is to be mounted at the same position again.

The following variants exist at the rear axle:

No brake wear sensor or one brake wear sensor on the right-hand side of the vehicle.

IMPORTANT The brake wear sensor line or electrical connector must be routed or mounted as shown in the picture.

Front axle with divided brake caliper support 

Fig 1: Identifying Right Front Brake Wear Sensor And Electrical Connector
G07533269Courtesy of MERCEDES-BENZ USA

Rear axle 

Fig 2: Identifying Right Rear Brake Wear Sensor And Electrical Connector
G07533270Courtesy of MERCEDES-BENZ USA

For reason of replacement part simplification, the brake linings must be installed so that the brake wear sensors can be installed in the corresponding installation position.

The corresponding installation position of the brake wear sensors is available in the table below.

Fig 3: Identifying Brake Wear Sensor Installation Position
G07502541Courtesy of MERCEDES-BENZ USA
Model 172 Version Front axle Rear axle
    1  4  5  6  7  8  9  10 
  ENGINE 271, 276, 651     •       •  
Model 204 Version Front axle Rear axle
    1  4  5  6  7  8  9  10 
  Engine 271, 646     •          
  Engine 272, 642, 651     •       •  
  Engine 156     •       •  
Model 207 Version Front axle Rear axle
    1  4  5  6  7  8  9  10 
  Engine 271, 272, 642     •       •  
  Engine 273       •     •  
Model 212 Version Front axle Rear axle
    1  4  5  6  7  8  9  10 
  Engine 271, 272, 642, 651     •       •  
  Engine 273       •     •  
  Engine 156     •       •  
Model 218 Version Front axle Rear axle
    1  4  5  6  7  8  9  10 
  Engine 276, 642, 651     •       •  
  Engine 278       •     •  
  Engine 157     •       •