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Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Brakes >> Traction Control >> Brakes - Hydraulic & Mechanical System - 463 Chassis (2 Of 4) >> Testing & Repair >> Remove/Install Brake Shoes At Rear Axle - AR42.10-P-0165GG

Remove/Install Brake Shoes At Rear Axle - AR42.10-P-0165GG

Model 460, 461 

with drum brakes on the rear axle 

Model 463 

up to model year 2019 

G13668562Courtesy of MERCEDES-BENZ USA
G13668563Courtesy of MERCEDES-BENZ USA
G13668564Courtesy of MERCEDES-BENZ USA
G13668565Courtesy of MERCEDES-BENZ USA
G13668566Courtesy of MERCEDES-BENZ USA
G13668567Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
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
1 Remove rear wheels    
REFER TO MAINTENANCE   Model 460, 461 with drum brakes on the rear axle
Model 463 up to model year 2019 with drum brakes on the rear axle
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 Safety screw, brake drum to wheel hub
BA42.10-P-1001-16A
3 Release parking brake and detach brake drum (119) Model 461 with drum brakes on the rear axle AR42.10-P-0169-01GG 
    IMPORTANT If the brake drum (119) cannot be pulled off, detach the brake shoes (92) by turning back the automatic brake adjuster: ↓ Adjust automatic brake adjuster.  
    Model 460, 461
with drum brakes on the rear axle Clearance of brake shoes
*BE42.10-P-1001-13A 
INSPECT Check     
4 Check brake drum (119) for wear Model 460, 461
with drum brakes on the rear axle Brake drum Ø
*BE42.10-P-1002-12A 
5 Unhook upper retracting springs (116) INSTALLATION IMPORTANT Make sure that the upper retracting springs (116) are seated correctly.  
    SPECIAL TOOL Model 460, 461, 463 with Drum brakes on the rear axle
Removal and installation tool
Fig 1
6 Unhook lower retracting spring (124) INSTALLATION IMPORTANT Ensure that the lower return spring (124) is correctly seated.  
    Model 460, 461, 463 with Drum brakes on the rear axle
SPECIAL TOOL Removal and installation tool
Fig 1
7 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.  
8 Remove pressure springs (117) Model 460, 461 with Drum brakes on the rear axle
SPECIAL TOOL Mounting tool
Fig 2
9 Remove brake shoes (92) INSTALLATION IMPORTANT Install the rear brake shoe (92) first. Before installing the upper retracting spring (116) for the front brake shoe (92), insert the push rod (107), compression spring (110) and spring cup (113).  
INSPECT Check     
10 Check brake shoes (92) for wear Model 460, 461, 463
with drum brakes on the rear axle Brake lining thickness
*BE42.10-P-1003-12A 
11 Unhook parking brake cable (41) from parking brake lever (92a)    
12 Check the condition and operation of the automatic adjuster   AR42.10-P-0169GG 
    IMPORTANT Install a new automatic brake adjuster if necessary: ↓
Remove/install the automatic adjuster.
 
13 Install in the reverse order    
14 Adjust automatic brake adjuster Model 460, 461, 463 with drum brakes on the rear axle AR42.10-P-0169-01GG 
    Model 460, 461, 463
with drum brakes on the rear axle Clearance of brake shoes
*BE42.10-P-1001-13A 
    Model 460, 461, 463
with drum brakes on the rear axle Adjustment value for automatic adjuster
*BE42.10-P-1002-13A 
  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
15 Push down brake pedal several times IMPORTANT Firm resistance should be noticeable at the brake pedal.  
16 Apply brake 5 times when driving forwards and reversing. IMPORTANT As only the rear brake shoes adjust when braking while driving forwards, also brake hard several times so that the front brake shoes also adjust.  
INSPECT Check     
17 Check adjustment of parking brake, adjust if necessary Model 460, 461
with drum brakes on the rear axle Model 463 (except 463.270/271)
up to model year 2013 with drum brakes on the rear axle
AR42.20-P-0540GG 
CHECK VALUES FOR BRAKE SHOES

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-1001-13A Clearance of brake shoes mm 0, 3 (±0, 1)
CHECK VALUES FOR DRUM BRAKE

Number Designation Model 460, 461, 463
BE42.10-P-1002-12A Brake drum Ø Normal mm 270 (+0, 2)
Repair stage I mm 271 (+0, 2)
Repair stage II mm 272 (+0, 2)
CHECK VALUES FOR BRAKE SHOES

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 
CHECK VALUES FOR DRUM BRAKE

Number Designation Model 460, 461, 463
BE42.10-P-1003-12A Brake lining thickness Normal mm 9, 0
Repair stage I mm 9, 5
Repair stage II mm 10, 0
Minimum lining thickness mm 3, 5
Pad backing plate mm 3, 0...3, 5
DRUM BRAKE

Number Designation Model 460 Model 461
BA42.10-P-1001-16A Safety screw, brake drum to wheel hub Nm 20 20
Fig 1: Identifying Removal And Installation Tool (116 589 01 62 00)
G13668568Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Mounting Tool (606 589 00 61 00)
G13668569Courtesy of MERCEDES-BENZ USA