Check Thickness And Condition Of Brake Disks - AR42.10-P-0120LWG

Model 213, 253, 293

Courtesy of MERCEDES-BENZ USA

Shown on right side of vehicle on model 253, except code B07 (AMG - ceramic brake system)

	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
Notice	Notes on evaluating brake discs with and without wear holes		AH42.10-P-9406-14A
Notice	Notes on handling, transport and storage of composite brake discs		AH42.10-P-9406-12LF
Notice	Notes on handling, transport and storage of ceramic brake discs		AH42.10-P-9406-13A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove
1	Remove wheel and tire assemblies.		AR40.10-P-1102A
	Measure
2	Measure thickness of brake discs (1) on front and rear axles using vernier caliper.	Model 213, 253 except code B07 (AMG - ceramic brake system) Model 293
		Model 293Brake disc thickness	*BE42.10-P-1001-08IA
		Model 293Brake disc thickness	*BE42.10-P-1001-09GA
		Model 253 except code B07 (Ceramic brake system) Brake disc thickness	*BE42.10-P-1001-09Y
		Model 213 except code B07 (Ceramic brake system) Brake disc thickness	*BE42.10-P-1001-09ZA
		Model 253 except code B07 (Ceramic brake system) Brake disc thickness	*BE42.10-P-1001-08BA
		Model 213 except code B07 (Ceramic brake system) Brake disc thickness	*BE42.10-P-1001-08CA
		Caliper gauge If the wear limit has been exceeded or will be exceeded before the next brakepad change. ↓ Replace brake disc (1) in a pair.	Fig 1
		Model 213, 253	AR42.10-P-0220EWE
		Remove/install brake disc (1) on front axle Model 293	AR42.10-P-0230EQ
		Remove/install brake disc (1) on rear axle Model 293	AR42.10-P-0240EQ
	Check
3	Check brake disc (1) on front and rear axle for corrosion, score marks, cracks and chippings.	Model 213, 253 except code B07 (AMG - ceramic brake system) Model 293 For a brake disc (1) that is perforated or has sunk holes, assess crack length (x) including bore diameter.
		Model 293 Check brake discs	*BE42.10-P-1002-09GA
		Model 293 Check brake discs	*BE42.10-P-1002-08IA
		Model 253 except code B07 (Ceramic brake system) Check brake discs	*BE42.10-P-1002-09Y
		Model 213 except code B07 (Ceramic brake system) Check brake discs	*BE42.10-P-1002-09ZA
		Model 253 except code B07 (Ceramic brake system) Check brake discs	*BE42.10-P-1002-08BA
		Model 213 except code B07 (Ceramic brake system) Check brake discs If there is a problem, ↓ Replace brake disc (1) in a pair.	*BE42.10-P-1002-08CA
		Model 213, 253	AR42.10-P-0220EWE
		Remove/install brake disc (1) on front axle Model 293	AR42.10-P-0230EQ
		Remove/install brake disc (1) on rear axle Model 293	AR42.10-P-0240EQ
4	Check brake disc (1).	Model 213, 253 with code B07 (AMG - ceramic brake system)
		Model 213, 253 with code B07 (AMG - ceramic brake system) If there is a problem, ↓ replace corresponding brake disc (1).	AR42.10-P-0270RG
		Model 213, 253 with code B07 (AMG - ceramic brake system)	AR42.10-P-0220EWE
	Install
5	Attach wheel and tire assemblies.		AR40.10-P-1102A

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation			Model 253.142/143/146/149/303/305/309/325/342/343/346/349 except code P31/U29, model 253.313/315/316/319/380/381/384/903/90 5/909/913/914/915/9 16/919/925/942/943/946/948/949/980/981/984/993 except code 9O1/P31/U29	Model 253.142/143/146/14 9/303/305/309/313/3 15/316/319/325/342/343/346/349/with code P31/U29, model 253.311/323/353/35 4/364/911/923/953/9 54/964, model 253.313/315/319/38 0/381/384/903/905/9 09/913/914/915/916/919/925/942/943/94 6/948/949/980/981/9 84/993 with code 9O1/P31/U29
BE42.10-P-1001-08BA	Brake disc thickness	New	mm	32	36
BE42.10-P-1001-08BA	Brake disc thickness	Wear limit	mm	29, 4	34

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation			Model 253.388/389/988/98 9 with code B06/U70
BE42.10-P-1001-08BA	Brake disc thickness	New	mm	36
BE42.10-P-1001-08BA	Brake disc thickness	Wear limit	mm	33

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation			Model 213.004/013/204/213/242/277 except code 088/P31/U29, model 213.012/212 except code P31/U29, model 213.040 except code 700/P31/U29, model 213.042/077 except code 088/700/P31/U29, model 213.104 model 213.142/143 except code 700	Model 213.004/013/042/07 7/078/204/213/242/2 77 with code 088, model 213.005/008/033/04 5/050/053/080/083/0 85/205/208/217/233/243/245/283 except code P31/U29, model 213.016 except code 808/P31/U29, model 213.040/042/043/07 7/078/142/143 with code 700, model 213.043 except code 700/P31/U29, model 213.048/049 except code 494/P31/U29, model 213.048/049 with code 494, model 213.131/140/148/27 8
BE42.10-P-1001-08CA	Brake disc thickness	New	mm	28	32
BE42.10-P-1001-08CA	Brake disc thickness	Wear limit	mm	25, 4	29, 4

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation			Model 213.004/005/008/012/013/040/042/043/04 5/077/078/080/204/2 05/208/212/213/217/242/243/245 with code P31/U29 Model 213.033 with code 158 with code P31	Model 213.016/033/048/04 9/050/085/233/283 with code U29 Model 213.016/048/049/05 0/053/083/085/233/2 83 with code P31 Model 213.016 with code 808 Model 213.022/023/034/05 9/061/064/066/068/0 71/163/216/220/222/223/227/234/237/25 9/261/264/266/268/2 71 Model 213.033 with code P31 except code 158
BE42.10-P-1001-08CA	Brake disc thickness	New	mm	32	36
BE42.10-P-1001-08CA	Brake disc thickness	Wear limit	mm	30	34

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation			Model 213.088/089/288/28 9 except code B07
BE42.10-P-1001-08CA	Brake disc thickness	New	mm	36
BE42.10-P-1001-08CA	Brake disc thickness	Wear limit	mm	33

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation			Model 293
BE42.10-P-1001-08IA	Brake disc thickness	New	mm	36
BE42.10-P-1001-08IA	Brake disc thickness	Wear limit	mm	34

Check VALUES FOR REAR AXLE BRAKE DISKS

Number	Designation			Model 293
BE42.10-P-1001-09GA	Brake disc thickness	New	mm	26
BE42.10-P-1001-09GA	Brake disc thickness	Wear limit	mm	24

Check VALUES FOR REAR AXLE BRAKE DISKS

Number	Designation			Model 253.142/342/942 with code P31/U29, model 253.143/146/149/303/305/309/311/313/31 5/316/319/323/325/3 43/346/349/353/354/364/380/381/384, model 253.903/905/909/911/913/914/915/916/91 9/923/925/943/946/9 48/949/953/954/964/980/981/984/993 except code 9O1	Model 253.142/342 except code P31/U29, model 253.942 except code 9O1/P31/U29
BE42.10-P-1001-09Y	Brake disc thickness	New	mm	24	22
BE42.10-P-1001-09Y	Brake disc thickness	Wear limit	mm	21, 4	19, 4

Check VALUES FOR REAR AXLE BRAKE DISKS

Number	Designation			Model 253.388/389 model 253.988/989 except code 9O1	Model 253.903/905/909/91 1/913/914/915/916/9 19/923/925/943/946/948/949/953/954/96 4/980/981/984/993 with code 9O1
BE42.10-P-1001-09Y	Brake disc thickness	New	mm	26	26
BE42.10-P-1001-09Y	Brake disc thickness	Wear limit	mm	24	23, 4

Check VALUES FOR REAR AXLE BRAKE DISKS

Number	Designation			Model 213.004/005/008/012/013/040/042/043/045/048/049/077/078/080/083/104/140/142/143/148/204/205/208/212/213/217/242/243/245/277/278	Model 213.016/022/023/03 3/034/050/053/085/131/220/222/223/22 7/233/234/237/283
BE42.10-P-1001-09ZA	Brake disc thickness	New	mm	22	24
BE42.10-P-1001-09ZA	Brake disc thickness	Wear limit	mm	19, 4	21, 4

Check VALUES FOR REAR AXLE BRAKE DISKS

Number	Designation			Model 213.059/061/064/066/068/071/163/216/259/261/264/266/268/271	Model 213.088/089/288/289 except code B07
BE42.10-P-1001-09ZA	Brake disc thickness	New	mm	26	26
BE42.10-P-1001-09ZA	Brake disc thickness	Wear limit	mm	23, 4	24

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation				Model 253.388/389/988/98 9 with code B06/U70
BE42.10-P-1002-08BA	Check brake discs	Crack length	Dimension "x"	mm	< 25
BE42.10-P-1002-08BA	Check brake discs	Crack depth		mm	< 0, 5

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation				Model 213.004/013/204/213/242/277 except code 088/P31/U29, model 213.012/212 except code P31/U29, model 213.040 except code 700/P31/U29, model 213.042/077 except code 088/700/P31/U29, model 213.104 model 213.142/143 except code 700	Model 213.004/013/042/07 7/078/204/213/242/2 77 with code 088, model 213.005/008/033/04 5/050/053/080/083/0 85/205/208/217/233/243/245/283 except code P31/U29, model 213.016 except code 808/P31/U29, model 213.040/042/043/07 7/078/142/143 with code 700, model 213.043 except code 700/P31/U29, model 213.048/049 except code 494/P31/U29, model 213.048/049 with code 494, model 213.131/140/148/278
BE42.10-P-1002-08CA	Check brake discs	Crack length	Dimension "x"	mm	< 25	< 25
BE42.10-P-1002-08CA	Check brake discs	Crack depth		mm	< 0, 5	< 0, 5

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation				Model 213.004/005/008/012/013/040/042/043/04 5/077/078/080/204/2 05/208/212/213/217/242/243/245 with code P31/U29 Model 213.033 with code 158 with code P31	Model 213.016/033/048/04 9/050/085/233/283 with code U29 Model 213.016/048/049/05 0/053/083/085/233/2 83 with code P31 Model 213.016 with code 808 Model 213.022/023/034/05 9/061/064/066/068/0 71/163/216/220/222/223/227/234/237/25 9/261/264/266/268/2 71 Model 213.033 with code P31 except code 158
BE42.10-P-1002-08CA	Check brake discs	Crack length	Dimension "x"	mm	< 25	< 25
BE42.10-P-1002-08CA	Check brake discs	Crack depth		mm	< 0, 5	< 0, 5

Check VALUES FOR FRONT AXLE BRAKE DISKS

Number	Designation				Model 293
BE42.10-P-1002-08IA	Check brake discs	Crack length	Dimension "x"	mm	< 25
BE42.10-P-1002-08IA	Check brake discs	Crack depth		mm	< 0, 5

Check VALUES FOR REAR AXLE BRAKE DISKS

Number	Designation				Model 293
BE42.10-P-1002-09GA	Check brake discs	Crack length	Dimension "x"	mm	< 25
BE42.10-P-1002-09GA	Check brake discs	Crack depth		mm	< 0, 5

Check VALUES FOR REAR AXLE BRAKE DISKS

Number	Designation				Model 253.142/342/942 with code P31/U29, model 253.143/146/149/303/305/309/311/313/31 5/316/319/323/325/3 43/346/349/353/354/364/380/381/384, model 253.903/905/909/911/913/914/915/916/91 9/923/925/943/946/9 48/949/953/954/964/980/981/984/993 except code 9O1	Model 253.142/342 except code P31/U29, model 253.942 except code 9O1/P31/U29
BE42.10-P-1002-09Y	Check brake discs	Crack length	Dimension "x"	mm	< 25	< 25
BE42.10-P-1002-09Y	Check brake discs	Crack depth		mm	< 0, 5	< 0, 5

Check VALUES FOR REAR AXLE BRAKE DISKS

Number	Designation				Model 213.004/005/008/012/013/040/042/043/045/048/049/077/078/080/083/104/140/142/143/148/204/205/208/212/213/217/242/243/245/277/278	Model 213.016/022/023/03 3/034/050/053/085/131/220/222/223/22 7/233/234/237/283
BE42.10-P-1002-09ZA	Check brake discs	Crack length	Dimension "x"	mm	< 25	< 25
BE42.10-P-1002-09ZA	Check brake discs	Crack depth		mm	< 0, 5	< 0, 5

Fig 1: Identifying Caliper Gauge (140 589 00 19 00)

Courtesy of MERCEDES-BENZ USA