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Assess Condition Of Brake Disks - 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 

G12939425Courtesy of MERCEDES-BENZ USA

Perforated compound brake disk with wear bores 

G12939426Courtesy of MERCEDES-BENZ USA

Compound brake disk with wear bores 

G12939427Courtesy of MERCEDES-BENZ USA
  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 handling, transport and storage of composite brake disks Model 190, 205, 213, 217, 222, 238, 253, 257, 290 AH42.10-P-9406-12LF 
  Notes on handling, transport and storage of ceramic brake disks Model 190, 197, 205, 212, 213, 217, 218, 222, 231, 253, 290
with code B07 (Ceramic brake system)		 AH42.10-P-9406-13A 
INSPECT Check     
1.1 Assess steel brake disks (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 (Ceramic brake system)
Model 205
with code B07 (Ceramic brake system) and steel brake disks on the rear axle
NOTES For perforated or counterbored steel brake disks (1) assess the crack length (x) including the bore diameter.
Otherwise the assessment may be incorrect.
If a crack length (x) is ≥ 25 mm (0.98 inches), split open cracks or score marks are deeper than 0.5 mm (0.02 inches), or severe corrosion is present,
↓
replace steel brake disks (1).
IMPORTANT After obtaining special order.
If soiling (e.g. oil, grease) is present.
↓
Clean steel brake disks (1), and replace if necessary.
IMPORTANT After obtaining special order.		  
1.2 Assess ceramic brake disks (2) for damage and soiling (e.g. oil, grease). Model 190, 197, 205, 212, 213, 217, 218, 222, 231, 253, 290
with code B07 (Ceramic brake system)		  
  Notes on evaluating brake disks   AH42.10-P-9406-07RQ 
    If the ceramic brake disks (2) are damaged or soiled,
↓
replace ceramic brake disks (2).
IMPORTANT After obtaining special order.
If, in exceptional cases, assessment of the ceramic brake disks (2) is not possible by means of a visual check,
↓
check ceramic brake disks (2) for condition.
IMPORTANT After obtaining special order.		 AP42.10-P-4246U 
2.1 Assess steel brake disks (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 (Ceramic brake system)
Model 205
with code B07 (Ceramic brake system) and steel brake disks on the rear axle Steel brake disks (1) with wear bores.		  
  Notes on evaluating brake disks 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 disks (1) are OK; new brake pads can still be installed on the disks.
If the inner wear bore (13) is visible,
↓
the steel brake disks (1) are OK, the current brake pads can still be used, do not install any more new brake pads onto the steel brake disks (1).
If none of the three wear bores are visible,
↓
replace steel brake disks (1).
IMPORTANT After obtaining special order.
If, in exceptional cases, assessment of the steel brake disks (1) is not possible by means of a visual check,
↓
check steel brake disks (1) for condition.		 AH42.10-P-9406-14A 
    IMPORTANT After obtaining special order. AP42.10-P-4246U 
2.2 Assess steel brake disks (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 (Ceramic brake system)
Model 205
with code B07 (Ceramic brake system) and steel brake disks on the rear axle
Steel brake disks (1) without wear bores.		  
  Notes on evaluating brake disks with and without wear holes If deeply contoured ridging is present at the outer edge,
↓
replace steel brake disks (1).
IMPORTANT After obtaining special order.
If, in exceptional cases, assessment of the steel brake disks (1) is not possible by means of a visual check,
↓
check steel brake disks (1) for condition.		 AH42.10-P-9406-14A 
    IMPORTANT After obtaining special order. AP42.10-P-4246U 
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