Removing Front Brake Disc

→ Carefully guide the wheel towards the wheel hub, thereby preventing any heavy impact on the (ceramic) brake disc.

Information 

• To gain better access for assembly work, it is a good idea to turn the wheels fully either to the right or left! 

1. Disconnect plug-in coupling for brake pad wear indicator -1-  and detach it from the holder -2-  .
   Fig 1: Connecting Connector For Brake Pad Wear Indicator

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2. Detach holder for brake line and wear indicator at the wheel carrier -arrow-  .
   Fig 2: Removing Holder For Brake Pad Wear Indicator/Brake Line

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3. Disconnect connector for rpm sensor. → Brake line holder 
   Fig 3: Disconnecting Connector For RPM Sensor

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4. Loosen two fastening nuts -1-  and remove brake line holder -2-  .
   Fig 4: Identifying Brake Line Holder With Fastening Nuts

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   NOTE: Removal of brake calliper

   • Paint defects on brake calliper

   → Proceed with care when setting back the brake pads.

   → Protect brake calliper from paint defects using a suitable cloth.

5. Set the disc brake pads back slightly and uniformly using water pump pliers.

   Information 

   • Do not open the brake system. 
   • Do not loosen the brake hose from the brake calliper when loosening the brake calliper. 
   • The core of the warning contact wire must not be left exposed! It does not matter if the insulation is worn. 
   • If necessary, remove a little brake fluid from the reservoir by suction in order to prevent an overflow when the disc brake pads are pushed back. 
6. Partially remove brake calliper. Use removal/installation aid for brake calliper assembly pin T10439  .
   Fig 5: Identifying Assembly Pin For Brake Calliper

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   Information 

   • Never use an impact bolter to loosen and tighten the brake calliper on the wheel carrier. 
   1. 6.1. Remove upper fastening screw on the brake calliper -arrow-  and insert assembly pin.
      Fig 6: Inserting Upper Assembly Pin

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   2. 6.2. Remove lower fastening screw on the brake calliper -arrow-  and insert assembly pin.
      Fig 7: Inserting Lower Assembly Pin

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   3. 6.3. Pull the brake calliper as far as required out of installation position until the brake calliper engages in the cut-outs on the assembly pins → Brake calliper tool fitted  . Carefully guide brake line and brake hose along with calliper in the process.
      Fig 8: Pulling Brake Calliper

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7. Loosen fastening screws -arrows-  and remove brake disc.
   Fig 9: Locating Brake Calliper Fastening Screws

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