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Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brakes - Hydraulic & Mechanical System - 463 Chassis (3 Of 4) >> Maintenance >> Replace Brake Fluid >> Replace Brake Fluid - AP42.00-P-4280D

Replace Brake Fluid - AP42.00-P-4280D

Model 463 

up to model year 2019 

Shown: Model 463.348 

G13668683Courtesy of MERCEDES-BENZ USA
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
  Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
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
  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
  Notes on repairs to brake system   AH42.00-P-0003-01A
  Brake fluid notes   AH42.50-P-0001-01A
CLEANING Clean     
1 Clean area surrounding cap (2) and expansion reservoir (1).    
REMOVING Remove     
2 Unscrew cap (2).    
3 Extract brake fluid from expansion reservoir (1).    
4 Add new brake fluid up to the max. marking in the expansion reservoir (1).    
5 Connect filling and bleeding unit to expansion reservoir (1) and switch on. NOTES
Note operating instructions for filling and bleeding unit.
Damage can otherwise occur.
 
  Change fluid     
6 Lift vehicle with lifting platform.    
REFER TO TESTING & REPAIR     AR00.60-P-1000G
7 Renew brake fluid.    
REFER TO CAPACITIES & SPECIFICATIONS General brake fluid   BB00.40-P-0330-01A
REFER TO CAPACITIES & SPECIFICATIONS Brake fluids (DOT 4 plus)   BB00.40-P-0331-00A
REFER TO TESTING & REPAIR   Model 463.236/248
up to model year 2019 with code 979 (Special protection MB Guard)
AR42.10-P-0010GS
REFER TO TESTING & REPAIR   Model 463.270/271
up to model year 2019
AR42.10-P-0010GX
REFER TO TESTING & REPAIR   Model 463 (except 463.270/271)
up to model year 2013
except code 979 (Special protection MB Guard)
AR42.10-P-0010-02GG
REFER TO TESTING & REPAIR   Model 463
as of model year 2013 up to model year 2016
AR42.10-P-0010-02GW
REFER TO TESTING & REPAIR   Model 463
as of model year 2016 up to model year 2019
AR42.10-P-0010-02GWA
    NOTES
New brake fluid must escape without any bubbles via the bleed hose.
Damage can otherwise occur.
 
    TORQUE SPECIFICATION Bleed screw at front axle fixed brake caliper *BA42.10-P-1001-02B 
    TORQUE SPECIFICATION Model 463.270/271
up to model year 2019 Bleed screw to front axle floating brake caliper
BA42.10-P-1001-03G
    TORQUE SPECIFICATION Bleed screw on rear axle floating caliper *BA42.10-P-1001-17B 
    TORQUE SPECIFICATION Vent screw at wheel cylinder If the bleed valve is not accessible,
↓
Detach/attach wheel and tire assemblies.
IMPORTANT After obtaining special order.
*BA42.10-P-1005-16A 
8 Replace clutch operation system brake fluid. Vehicle with manual transmission.  
REFER TO CAPACITIES & SPECIFICATIONS General brake fluid   BB00.40-P-0330-01A
REFER TO CAPACITIES & SPECIFICATIONS Brake fluids (DOT 4 plus)   BB00.40-P-0331-00A
    New brake fluid must escape without any bubbles via the bleed hose.
Damage can otherwise occur.
 
    TORQUE SPECIFICATION Model 463 with transmission 717
up to model year 2019 Bleed screw at clutch slave cylinder
BA25.20-P-1001-01H
INSPECT Check     
9 Check brake system for leaks.    
10 Check clutch operation for leak tightness. Vehicle with manual transmission.  
INSTALLING Install     
11 Lower vehicle with vehicle lift.    
REFER TO TESTING & REPAIR     AR00.60-P-1000G
12 Disconnect filling and bleeding unit.    
INSPECT Check     
13 Check fluid level in expansion reservoir (1).   AP42.10-P-4210C 
INSTALLING Install     
14 Screw on cap (2).    
CLUTCH OPERATING SYSTEM

Number Designation Transmission 717
BA25.20-P-1001-01H Bleed screw at clutch slave cylinder Nm 3
FRONT AXLE FIXED BRAKE CALIPER

Number Designation Model 461 (except 461.339)
Model 463 up to model year 2019
BA42.10-P-1001-02B Bleed screw at front axle fixed brake caliper Nm 14
FRONT AXLE FLOATING BRAKE CALIPER

Number Designation Model 463.270/271
BA42.10-P-1001-03G Bleed screw to front axle floating brake caliper Nm 17
REAR AXLE FLOATING CALIPER

Number Designation Model 461
Model 463 (except 463.270/271/272/273)
up to model year 2019
Model 463.270/271/272/273
up to model year 2019
BA42.10-P-1001-17B Bleed screw on rear axle floating caliper Nm 15 17
REAR AXLE FLOATING CALIPER

Number Designation Model 463 as of model year 2019
BA42.10-P-1001-17B Bleed screw on rear axle floating caliper Nm 11
DRUM BRAKE

Number Designation Model 463
BA42.10-P-1005-16A Vent screw at wheel cylinder Manufacturer ATE Nm 3
Manufacturer FAG Nm 6