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Assess condition of brake disks - AP42.10-P-4256EW

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MODEL 117, 156, 164, 166, 169, 171, 172, 176, 190, 197, 203, 204, 205, 207, 209, 211, 212, 216, 217, 218, 219, 221, 222, 230, 231, 242, 245, 246, 251, 453, 463 

Shown with complete wheels removed 

Fig 1: Checking Condition Of Brake Disks
G09976521DANGERNOTESIMPORTANTINSPECTIMPORTANTSPECIAL TOOLIMPORTANTNOTESIMPORTANTCourtesy 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
NOTES Notes on handling, transport and storage of ceramic brake disks   AH42.10-P-9406-13A
IMPORTANT Notes on handling, transport and storage of composite brake disks   AH42.10-P-9406-12LF
INSPECT Check     
1.1 Check all steel brake disks (1) for score marks, cracks, corrosion, ridging on outer edge and for soiling (oil, grease) Except code B07 (Ceramic brake system), Model 205 with code B07 (Ceramic brake system) on rear axle only
IMPORTANT For perforated or counterbored steel brake disks (1) assess the crack length (x) including the bore diameter.
For a crack length (x) > 25 mm (0.98 inches), gaping cracks or score marks deeper than 0.5 mm (0.02 inches) or pitted corrosion or deeply contoured ridging at the outer edge:

Replace steel brake disks (1) subject to separate repair order.
 
SPECIAL TOOL Caliper gauge
For soiling (oil, grease):

Clean steel brake disks (1), subject to separate repair order, replace if necessary.
If, in exceptional cases, assessment of the steel brake disks (1) by means of visual inspection is not possible,

Check condition of steel brake disks (1) subject to separate repair order.
Fig 2
MODEL 117, 156, 176, 242, 246 AP42.10-P-4258NK
MODEL 164, 251 AP42.10-P-4258GZ
MODEL 166 AP42.10-P-4258GQ
MODEL 169, 245 (except 245.286) AP42.10-P-4258AK
MODEL 171, 172 AP42.10-P-4258V
Model 190 AP42.10-P-4258A
Model 197.3/4 AP42.10-P-4258RQ
MODEL 203 AP42.10-P-4258BP
MODEL 204 AP42.10-P-4258CW
Model 205, 207, 212, 218 AP42.10-P-4258EW 
MODEL 209 AP42.10-P-4258BQ
MODEL 211, 230 AP42.10-P-4258R
MODEL 216, 221.0/1 AP42.10-P-4258SX
Model 217 AP42.10-P-4258C
MODEL 219 AP42.10-P-4258TX
MODEL 222 AP42.10-P-4258HA
MODEL 231 AP42.10-P-4258RK
MODEL 453 AP42.10-P-4258S
MODEL 463.202/236/237/346 as of model year 2012
MODEL 463.272/273/274
AP42.10-P-4258G
1.2 Check all ceramic brake disks (2) With code B07 (Ceramic brake system) (except model 205), model 205 with code B07 (Ceramic brake system) on front axle only  
IMPORTANT Notes on evaluating brake disks   AH42.10-P-9406-07RQ
NOTES
Replace damaged or soiled ceramic brake disks (2), subject to separate repair order. Otherwise the brake system may fail.
IMPORTANT Assess in accordance with the notes on assessing brake disks and soiling (oil, grease).
If, in exceptional cases, assessment of the ceramic brake disks (2) by means of visual inspection is not possible:

Check condition of ceramic brake disks (2) subject to separate repair order.
 
Model 190, 205 AP42.10-P-4258AC
Model 197, 212, 218, 231 AP42.10-P-4258QQ 
Model 217 AP42.10-P-4258CC
Model 222 AP42.10-P-4258HC
Fig 2: Identifying Caliper Gauge (140 589 00 19 00)
G09976522Courtesy of MERCEDES-BENZ USA