LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Brakes >> Brakes Control Systems >> Brakes - Hydraulic & Mechanical System - 463 Chassis (3 Of 4) >> Maintenance >> (Check Brake Pad Thickness And Condition Of brake discs - AP42.10-P-4251G)

(Check Brake Pad Thickness And Condition Of brake discs - AP42.10-P-4251G)

Model 460, 461 

Model 463 

up to model year 2012 

MODIFICATION NOTES

04.09.2019 brake disc thickness Model 463.260/261/270/271/272/349 BE42.10-P-1001-09C
G13668687Courtesy 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
  Notes on repairs to brake system   AH42.00-P-0003-01A
REMOVING Remove     
1 Remove wheel and tire assemblies.   AP40.10-P-4050G
    IMPORTANT On vehicles with drum brakes, only detach the front wheels.  
MEASURING Measure     
2 Measure brake lining thickness using vernier caliper. Model 460, 461; model 463 up to model year 2012
IMPORTANT Observe the wear limit to ensure that the values are not exceeded before the next maintenance service.
 
    Front axle on model 463.272/273/274 up to model year 2012 Brake lining *BE42.10-P-1001-05W
    Rear axle on model 463.272/273/274 up to model year 2012 Brake lining BE42.10-P-1001-15T
    SPECIAL TOOL Caliper gauge
If the wear limit is exceeded,
↓ 
replace brake linings.
IMPORTANT After obtaining special order.
Fig 1
3 Pull stop plugs (arrows) out of check bores and measure brake pad thickness of brake shoes. Vehicles with drum brakes.  
    IMPORTANT Observe the wear limit to ensure that the values are not exceeded before the next maintenance service.  
    Clearance of brake shoes *BE42.10-P-1001-13A 
    Adjustment value for automatic adjuster *BE42.10-P-1002-13A 
    Model 460, 461; model 463 up to model year 2012 Brake lining thickness *BE42.10-P-1003-12A 
    Model 460, 461; model 463 up to model year 2012 Brake lining wear limit, drum brake *BE42.10-P-1002-10A 
    SPECIAL TOOL Caliper gauge
If the wear limit is exceeded,
↓
replace brake shoes of drum brakes.
IMPORTANT After obtaining special order.
Fig 1
INSPECT Check     
4 Check brake discs for score marks, cracks, corrosion and soiling (e.g. oil, grease). If a crack length > 25 mm (0.98 inches), gaping cracks or score marks deeper than 0.5 mm (0.02 inches) or severe corrosion is present,
↓
Replace steel brake discs.
IMPORTANT After obtaining special order.
If soiling (e.g. oil, grease) is present,
↓
clean brake discs and replace if necessary.
IMPORTANT After obtaining special order.
 
5 Check brake discs for axial runout if necessary.    
REFER TO TESTING & REPAIR   Model 460, 461
Model 463
AR42.10-P-0265GG
    up to model year 2012  
MEASURING Measure     
6 Measure brake disc thickness using vernier caliper. IMPORTANT Observe the wear limit to ensure that the values are not exceeded before the next maintenance service.  
    Front axle on model 460, 461; model 463 up to model year 2012 brake disc thickness *BE42.10-P-1001-08C 
    Rear axle on model 461; model 463 up to model year 2012 brake disc thickness *BE42.10-P-1001-09C 
    SPECIAL TOOL Caliper gauge
If the wear limit is exceeded,
↓
replace brake discs.
IMPORTANT After obtaining special order.
Fig 1
INSTALLING Install     
7 Install wheel and tire assemblies.   AP40.10-P-4050G
CHECK VALUES FOR FRONT AXLE BRAKE LINING

Number Designation Model 463.234/239/255/27 2/273/274/275/348
BE42.10-P-1001-05W Brake lining Brake pad, new mm 11
Pad backing plate mm 5
Wear limit mm 3
Wear indicator activated (if installed) mm 3-4
CHECK VALUES FOR FRONT AXLE brake discS

Number Designation Model 460, 461, 463 (except 463.234/239/255/260/261/270/271/272/27 3/274/275/276/277/3 48/349)
without internally vented brake discs
Model 461 with internally vented brake discs
BE42.10-P-1001-08C brake disc thickness New mm 16 30
Wear limit mm 13 27
CHECK VALUES FOR FRONT AXLE brake discS

Number Designation Model 463 (except 463.234/239/255/260/261/270/271/272/27 3/274/275/276/277/3 49) with internally vented brake discs Model 463.260/261/349 except code PL1, model 463.270/271 with internally vented brake discs
BE42.10-P-1001-08C brake disc thickness New mm 30 32
Wear limit mm 27 29, 4
CHECK VALUES FOR REAR AXLE brake discS

Number Designation Model 461, 463 (except 463.234/239/255/260/261/270/271/272/27 3/274/275/276/277/3 49) Model 463.260/261/270/27 1/272/349
BE42.10-P-1001-09C brake disc thickness New mm 16 22
Wear limit mm 14 20
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 REAR AXLE BRAKE PAD

Number Designation Model 463.234/239/255/27 2/273/274/275/348
BE42.10-P-1001-15T Brake lining Brake pad, new mm 11
Pad backing plate mm 5
Wear limit mm 4
Wear indicator activated (if installed) mm 4-5
CHECK VALUES FOR SERVICE BRAKE

Number Designation Model 460, 461 Model 463 (except 463.234/239/255/272/273/274/275/348) up to model year 2019 Model 463.234/239/255/27 2/273/274/275/348
BE42.10-P-1002-10A Brake lining wear limit, drum brake mm 3, 5 -
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
Fig 1: Identifying Caliper Gauge (140 589 00 19 00)
G13668688Courtesy of MERCEDES-BENZ USA