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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Hydraulic & Mechanical System - 257 Chassis 1 Of 2 >> Testing & Repair >> Remove/Check/Install Rear Axle Brake Pads - AR42.10-P-1710FR

Remove/Check/Install Rear Axle Brake Pads - AR42.10-P-1710FR

Model 257 

Fig 1: Rear Axle Brake Pads Components Location - Model 257
G14548946Courtesy of MERCEDES-BENZ USA
DANGER Risk of accident  when commissioning the vehicle due to a lack of braking effect when the service Brake is operated for the first time after repair work. Before starting the engine, actuate Brake pedal several times until pressure is built up and maintained in the Brake system. AS42.50-Z-0002-01A 
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
CAUTION Risk of poisoning  from swallowing Brake fluid. Risk of injury  from skin and eye contact with Brake fluid Only pour Brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling Brake fluid. AS42.50-Z-0001-01A 
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
Notice  Notes on repairs to Brake system   AH42.00-P-0003-01A 
Notice  Notes on handling, transport and storage of composite Brake disks   AH42.10-P-9406-12LF 
Notice  Brake fluid notes   AH42.50-P-0001-01A 
REMOVING Remove     
1 Detach Brake caliper and secure free of tension to vehicle with lines still connected   AR42.10-P-0080FR 
    NOTES
Do not subject the Brake hose and electrical line to tension and do not kink them. The Brake hose and the electrical line can otherwise be damaged.
 
2 Remove brakepads (1, 4) from Brake caliper support (2)    
3 Remove brakepad wear sensor from backing plate of brakepad (4) When replacing the brakepad (4) or the right rear brakepad wear sensor.  
INSPECT Check     
4 Check brakepads (1, 4) for wear and condition    
REFER TO MAINTENANCE     AP42.10-P-4252CLS
    If a problem arises

Replace brakepads (1, 4).
 
    IMPORTANT Only complete sets of Brake linings (1, 4) approved by Mercedes-Benz may be installed.  
CLEAN Clean     
5 Clean contact surfaces of brakepads (1, 4) on Brake caliper support (2) (arrows) and on Brake caliper NOTES
Do not use sharp-edged or pointed objects. Otherwise, the Brake caliper, the dust boot on the Brake piston or the Brake caliper support (2) may be damaged.
 
    Assembly cleaner *BR00.45-Z-1028-04A 
INSTALLING Install     
6 Insert rear brakepad wear sensor on the backing plate of brakepad (4) When replacing the brakepad (4) or the right rear brakepad wear sensor.  
7 Apply Brake paste to Brake caliper and to Brake caliper support (2)   AR42.10-P-0163-01FRA 
    IMPORTANT The Brake paste to be used depends on the manufacturer of the Brake caliper.  
    Lubricant paste *BR00.45-Z-1130-06A 
    Brake paste, Varybond *BR00.45-Z-1072-06A 
8 Insert Brake linings (1, 4) IMPORTANT Only complete sets of Brake linings (1, 4) approved by Mercedes-Benz may be installed.  
9 Install Brake caliper   AR42.10-P-0080FR 
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1028-04A Assembly cleaner A 000 986 56 01
BR00.45-Z-1072-06A Brake paste, Varybond A 001 989 94 51
BR00.45-Z-1130-06A Lubricant paste A 000 989 98 00 09