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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 Front Axle Brake Caliper >> Remove/Install Front Axle Brake Caliper - AR42.10-P-0070GW

Remove/Install Front Axle Brake Caliper - AR42.10-P-0070GW

Model 463 (except 463.234/255/270/271/274) as of model year 2013 up to model year 2019 

Shown on model 463.272 as of model year 2013 

G13668524Courtesy of MERCEDES-BENZ USA

Shown on model 463.272 as of model year 2016 

Fig 1: Front Axle Brake Caliper Components Location - Model 463 Model Year 2013 Up To Model Year 2019; Shown On Model 463.272 As Of Model Year 2016
G13668525Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove brake pads on front axle.   AR42.10-P-0170GWV 
2 Disconnect front brake pad wear sensor electrical connector (5).    
3 Remove screw (1) and place front brake pad wear sensor electrical connector (5) to one side. When replacing brake caliper (2).  
4 Detach brake hose (3) or brake line (6) from brake caliper (2). When replacing brake caliper (2).
TORQUE SPECIFICATION Brake line to fixed brake caliper
*BA42.10-P-1002-04B 
5 Collect escaping brake fluid using a suitable container.    
6 Seal exposed connections with stop plugs. SPECIAL TOOL Record plug Fig 2
7 Unscrew screw/bolts (4). INSTALLATION IMPORTANT Replace screws/bolts (4).  
    TORQUE SPECIFICATION Bolt, fixed brake caliper to joint housing *BA42.10-P-1004-02B 
8 Detach brake caliper (2) from steering knuckle and, if necessary, to vehicle free of tension. NOTES
Do not kink or stretch the brake hose (3).
Otherwise the brake hose (3) will be damaged
 
INSPECT Check     
9 Check brake caliper (2) and dust boots of brake pistons for leaktightness and damage. If there are problems

Replace brake caliper (2).
 
CLEANING Clean     
10 Clean contact surfaces of brake pads in brake caliper (2). NOTES
While doing so, do not damage the dust boots on the brake piston. Do not use sharp-edged or pointy tools.
Otherwise the brake caliper (2) will be damaged.
 
11 Install in the reverse order.    
12 Bleed brake system.   AR42.10-P-0010GW 
INSPECT Check     
13 Check brake system for leaks. If brake hose (3) or brake line (6) was previously removed. AR42.10-P-0015GW 
14 Perform brake test on test stand.    
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 with code 979 up to model year 2019
BA42.10-P-1002-04B Brake line to fixed brake caliper Nm 18 18
BRAKE LINES, BRAKE HOSES

Number Designation Model 463.272/273 up to model year 2019
BA42.10-P-1002-04B Brake line to fixed brake caliper Nm 24
FRONT AXLE FIXED BRAKE CALIPER

Number Designation Model 461 (except 461.339)
Model 463 up to model year 2019
BA42.10-P-1004-02B Bolt, fixed brake caliper to joint housing M12 Nm 95
M14 Nm 220
M16 Nm 280
Fig 2: Identifying Record Plug (129 589 00 91 00)
G13668526Courtesy of MERCEDES-BENZ USA