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Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brakes - Hydraulic & Mechanical System - 463 Chassis (2 Of 4) >> Testing & Repair >> Remove/Install Wheel Brake Cylinder - AR42.10-P-0167GG

Remove/Install Wheel Brake Cylinder - AR42.10-P-0167GG

Model 460, 461 

with drum brakes on the rear axle 

Model 463 

up to model year 2019 

with drum brakes on the rear axle 

G13668570Courtesy of MERCEDES-BENZ USA
G13668571Courtesy of MERCEDES-BENZ USA
G13668572Courtesy of MERCEDES-BENZ USA
G13668573Courtesy of MERCEDES-BENZ USA
G13668574Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
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
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
  Notes on repairs to brake system   AH42.00-P-0003-01A
  Brake fluid notes   AH42.50-P-0001-01A
1 Remove rear wheel    
REFER TO MAINTENANCE     AP40.10-P-4050G
2 Remove retaining bolt (122) INSTALLATION IMPORTANT Replace safety screw (122).  
    TORQUE SPECIFICATION Model 460, 461
with drum brakes on the rear axle
Model 463
up to model year 2019
with drum brakes on the rear axle Safety screw, brake drum to wheel hub
*BA42.10-P-1001-16A 
3 Release parking brake and detach brake drum (119) Adjustment value for automatic adjuster *BE42.10-P-1002-13A 
    If the brake drum (119) cannot be detached,

release brake shoes (92) by turning back the automatic adjuster
 
    Model 460, 461 with drum brakes on the rear axle Model
463 up to model year 2019 with drum brakes on the rear axle
AR42.10-P-0169-01GG 
4 Unhook upper retracting springs (116) INSTALLATION IMPORTANT Make sure that the upper retracting springs (116) are seated correctly.  
    SPECIAL TOOL Removal and installation tool Fig 1
5 Extract push rod (107) with spring (110) and spring seat (113) INSTALLATION IMPORTANT Make sure that the push rod (107), compression spring (110) and spring cup (113) are seated correctly.  
6 Detach brake line (125) IMPORTANT Immediately seal connections with stop plugs, the brake fluid reservoir must not run empty.  
    TORQUE SPECIFICATION Model 460, 461
with drum brakes on the rear axle
Model 463 (except 463.236/248/270/271/272/273)
up to model year 2019
Model 463.236/248
up to model year 2019
except code 979 (Special protection MB Guard)
Model 463.236/248
up to model year 2019
with code 979 (Special protection MB Guard)
Model 463.270/271
up to model year 2019
Model 463.272/273
up to model year 2019 Union nut, brake line to wheel brake cylinder
*BA42.10-P-1007-04B 
    SPECIAL TOOL Torque wrench Fig 2
    SPECIAL TOOL Box wrench bit Fig 4
    SPECIAL TOOL Record plug Fig 3
7 Remove the bolts (44) from the wheel cylinder
(23)
TORQUE SPECIFICATION Model 460, 461
with drum brakes on the rear axle
Model 463
up to model year 2019
with drum brakes on the rear axle Bolt, wheel brake cylinder to carrier plate
*BA42.10-P-1002-16A 
8 Push apart brake shoes (92) and remove wheel brake cylinder (23)    
9 Install in the reverse order    
10 Bleed brake system Model 460, 461
with drum brakes on the rear axle Model 463 (except 463.270/271)
up to model year 2013
except code 979 (Special protection MB Guard) with drum brakes on the rear axle
AR42.10-P-0010GG 
    Model 463.236/248
as of model year 2010 up to model year 2013 with code 979 (Special protection MB Guard)
AR42.10-P-0010GS
    Model 463.270/271
up to model year 2019 with drum brakes on the rear axle
AR42.10-P-0010GX
    Model 463 (except 463.270/271)
as of model year 2013 up to model year 2019 with drum brakes on the rear axle
AR42.10-P-0010GW 
REFER TO MAINTENANCE Check     
  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
11 Press brake pedal several times and check brake system for leak tightness Model 460, 461 with drum brakes on the rear axle
Model 463 up to model year 2019
except code 979 (Special protection MB Guard)
AR42.10-P-0100-01A 
  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
12 Inspect braking system for proper operation and leaks Model 463.236/248
as of model year 2010 up to model year 2013
with code 979 (Special protection MB Guard)
AR42.10-P-0014GS
DRUM BRAKE

Number Designation Model 460, 461 with drum brakes on the rear axle
Model 463 up to model year 2019
with drum brakes on the rear axle
BE42.10-P-1002-13A Adjustment value for automatic adjuster Installation dimension "a" mm 82
Distance "b" mm 11
Picture AR42.10-P-0169-01GG 
DRUM BRAKE

Number Designation Model 460 Model 461
BA42.10-P-1001-16A Safety screw, brake drum to wheel hub Nm 20 20
DRUM BRAKE

Number Designation Model 463
BA42.10-P-1001-16A Safety screw, brake drum to wheel hub Nm 20
DRUM BRAKE

Number Designation Model 460 Model 461
BA42.10-P-1002-16A Bolt, wheel brake cylinder to carrier plate Nm 10 10
DRUM BRAKE

Number Designation Model 463
BA42.10-P-1002-16A Bolt, wheel brake cylinder to carrier plate Nm 10
BRAKE LINES, BRAKE HOSES

Number Designation Model 460 Model 461
BA42.10-P-1007-04B Union nut, brake line to wheel brake cylinder Nm 15 15
BRAKE LINES, BRAKE HOSES

Number Designation Model 463 (except 463.236/248/270/271/272/273) up to model year 2019, model 463.236/248 except code 979 up to model year 2019 Model 463.236/248 with code 979 up to model year 2019
BA42.10-P-1007-04B Union nut, brake line to wheel brake cylinder Nm 15 15
BRAKE LINES, BRAKE HOSES

Number Designation Model 463.270/271 up to model year 2019 Model 463.272/273 up to model year 2019
BA42.10-P-1007-04B Union nut, brake line to wheel brake cylinder Nm - -
BRAKE LINES, BRAKE HOSES

Number Designation Model 463 as of model year 2019
BA42.10-P-1007-04B Union nut, brake line to wheel brake cylinder Nm -
Fig 1: Identifying Removal And Installation Tool (116 589 01 62 00)
G13668575Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Torque Wrench (001 589 75 21 00)
G13668576Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Record Plug (129 589 00 91 00)
G13668577Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Box Wrench Bit (000 589 75 03 00)
G13668578Courtesy of MERCEDES-BENZ USA