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Assess Condition Of Brake Discs - AP42.10-P-4256EW

Model 117, 118, 156, 164, 166, 167, 169, 171, 172, 176, 177, 190, 197, 203, 204, 205, 207, 209, 211, 212, 213, 216, 217, 218, 219, 221, 222, 230, 231, 238, 242, 245, 246, 247, 251, 253, 257, 290, 292, 293, 453, 461, 463 

G14546646Courtesy of MERCEDES-BENZ USA

Drilled compound brake disk with wear bores 

G14546647Courtesy of MERCEDES-BENZ USA

Compound brake disk with wear bores 

G14546648Courtesy of MERCEDES-BENZ USA
DANGER 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
Notice  Notes on handling, transport and storage of composite brake discs Model 190, 205, 213, 217, 222, 238, 253, 257, 290 AH42.10-P-9406-12LF
Notice  Notes on handling, transport and storage of ceramic brake discs Model 190, 197, 205, 212, 213, 217, 218, 222, 231, 253, 290 with code B07 (AMG - ceramic brake system) AH42.10-P-9406-13A
INSPECT Check     
1.1 Assess steel brake discs (1) for score marks, cracks, corrosion and soiling (e.g. oil, grease). Model 117, 118, 156, 164, 166, 167, 169, 171, 172, 176, 177, 203, 204, 207, 209, 211, 216, 219, 221, 230, 238, 242, 245, 246, 247, 251, 257, 292, 293, 453, 461, 463
Model 190, 197, 205, 212, 213, 217, 218, 222, 231, 253, 290 except code B07 (AMG - ceramic brake system)
Model 205 with code B07 (AMG - ceramic brake system) and steel brake discs on the rear axle
IMPORTANT For steel brake discs (1) with bores, assess crack length (x) including bore diameter.
If the crack length (x) is ≥ 25 mm (0.98 Inch) or if it extends up to the inner or outer edge of the friction ring, if there are gaping cracks or score marks deeper than 0.5 mm (0.02 Inch), or where pitted corrosion is present,

replace steel brake discs (1).
IMPORTANT After obtaining special order.
If soiling (e.g. oil, grease) is present,

clean steel brake discs (1), and replace if necessary.
IMPORTANT After obtaining special order.
 
1.2 Assess ceramic brake discs (2) for damage and soiling (e.g. oil, grease). Model 190, 197, 205, 212, 213, 217, 218, 222, 231, 253, 290 with code B07 (AMG - ceramic brake system)
If the ceramic brake discs (2) are damaged or soiled,

replace ceramic brake discs (2).
IMPORTANT After obtaining special order.
If, in exceptional cases, assessment of the ceramic brake discs (2) is not possible by means of a visual check,

check ceramic brake discs (2) for condition.
 
      AP42.10-P-4246U 
    IMPORTANT After obtaining special order.  
2.1 Assess steel brake discs (1) for wear. Model 117, 118, 156, 164, 166, 167, 169, 171, 172, 176, 177, 203, 204, 207, 209, 211, 216, 219, 221, 230, 238, 242, 245, 246, 247, 251, 257, 292, 293, 453, 461, 463
Model 190, 197, 205, 212, 213, 217, 218, 222, 231, 253, 290 except code B07 (AMG - ceramic brake system)
Model 205 with code B07 (AMG - ceramic brake system) and steel brake discs on the rear axle Steel brake discs (1) with wear bores.
 
Notice  Notes on evaluating brake discs with and without wear holes If outer wear bore (11), center wear bore (12) and the inner wear bore (13) are visible,

the steel brake discs (1) are OK; new brake pads can still be installed on the discs.
If the inner wear bore (13) is visible,

the steel brake discs (1) are OK, the current brake pads can still be used, do not install any more new brake pads onto the steel brake discs (1).
If none of the three wear bores are visible,

replace steel brake discs (1).
IMPORTANT After obtaining special order.
If, in exceptional cases, assessment of the steel brake discs (1) is not possible by means of a visual check,

check steel brake discs (1) for condition.
AH42.10-P-9406-14A
      AP42.10-P-4246U 
    IMPORTANT After obtaining special order.  
2.2 Assess steel brake discs (1) for wear. Model 117, 118, 156, 164, 166, 167, 169, 171, 172, 176, 177, 203, 204, 207, 209, 211, 216, 219, 221, 230, 238, 242, 245, 246, 247, 251, 257, 292, 293, 453, 461, 463
Model 190, 197, 205, 212, 213, 217, 218, 222, 231, 253, 290 except code B07 (AMG - ceramic brake system)
Model 205 with code B07 (AMG - ceramic brake system) and steel brake discs on the rear axle
Steel brake discs (1) without wear bores.
 
Notice  Notes on evaluating brake discs with and without wear holes If deeply contoured ridging is present at the outer edge,

replace steel brake discs (1).
IMPORTANT After obtaining special order.
If, in exceptional cases, assessment of the steel brake discs (1) is not possible by means of a visual check,

check steel brake discs (1) for condition.
AH42.10-P-9406-14A
    AP42.10-P-4246U   
    IMPORTANT After obtaining special order.