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Checking |
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Risk of injury
caused by body parts being jammed or crushed. Risk of injury
to skin and eyes caused by brake fluid spraying out at high pressure when working on the SBC brake system |
Deactivate SBC brake system using STAR DIAGNOSIS. |
AS42.46-Z-0001-01A |
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Risk of injury
to skin and eyes caused by handling hot or glowing objects. |
Wear safety gloves, protective clothing and safety glasses, if necessary. |
AS00.00-Z-0002-01A |
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Notes on repairs to brake system |
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AH42.00-P-0003-01A |
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Remove/install |
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| 1 |
Deactivate SBC brake system using STAR DIAGNOSIS. |
Vehicles with Sensotronic Brake Control (SBC) |
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The following steps should be run through in STAR DIAGNOSIS: |
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Select menu item "SBC-Sensotronic Brake Control"/"Deactivate 'SBC' system". |
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Then process all the individual steps from top to bottom. |
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| 2 |
Detach brake caliper carrier from steering knuckle or wheel carrier |
Do not detach brake hose, instead attach brake caliper to vehicle so that it is free of tension. Do not kink or tension brake hose, as otherwise it will be damaged. |
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At the front axle: |
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Floating caliper |
AR42.10-P-0070T |
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4-piston fixed caliper |
AR42.10-P-0070R |
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6- or 8-piston fixed brake caliper |
AR42.10-P-0070RA |
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At the rear axle: |
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Floating caliper |
AR42.10-P-0080R |
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Fixed caliper |
AR42.10-P-0080RA |
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Checking |
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| 3 |
Check brake lining thickness and brake disks (61) |
Only replace brake pads and brake disks (61) in complete sets if necessary. |
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Check brake lining thickness |
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AP42.10-P-4253A |
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Inspect condition of brake disks |
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AP42.10-P-4258R |
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Clean |
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| 4 |
If necessary, clean the perforation in the brake disks (61) |
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AR42.10-P-2260-01I |
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Release parking brake |
When removing the brake disks (61) on the rear axle |
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| 6 |
Unscrew locking bolt (63) and remove brake disk (61) |
If the parking brake drum is worn turn back the slack adjuster for the parking brake, otherwise the parking brake shoe will be damaged: |
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See Adjust parking brake: |
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Model 211 |
AR42.20-P-0540T |
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Model 230 |
AR42.20-P-0540R |
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Installation:
Only replace brake disks (61) in pairs. Lightly grease the seat of the brake disk (61) with MB long-life grease and replace the locking bolt (63). |
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Installation:
On 6-piston brake calipers note mark for direction of rotation (65)! The arrow must point in the direction of rotation of the wheel during forward travel. |
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*BA42.10-P-1002-06A |
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*BA42.10-P-1001-06A |
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Long-life grease |
*BR00.45-Z-1001-06A |
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Checking |
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| 7 |
Check lining thickness and condition of parking brake shoe |
After removing the rear axle brake disks (61), if necessary: ↓ |
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Replace parking brake shoes: |
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Model 211 |
AR42.20-P-0530T |
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Model 230 |
AR42.20-P-0530I |
| 8 |
Install in the reverse order |
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| 9 |
Activate SBC brake system using STAR DIAGNOSIS |
Vehicles with Sensotronic Brake Control (SBC) |
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The following steps should be run through in STAR DIAGNOSIS: |
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Select the menu item "SBC-Sensotronic Brake Control"/"Initial startup after repair"/"Replace brake disks". |
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Then process all the individual steps from top to bottom. |
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| 10 |
Adjust parking brake |
After removing brake disk (61) from rear axle |
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Model 211 |
AR42.20-P-0540T |
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Model 230 |
AR42.20-P-0540R |