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Home >> Porsche >> 2012 >> Cayenne S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 48 (46 - Brakes - Brake Mechanism (4.8L Turbo) -- 92A - Cayenne (92A)) >> WM, 463656 Replacing Front Disc Brake Pads >> Removing And Installing Front Disc Brake Pads >> Removing Front Disc Brake Pads

Removing Front Disc Brake Pads

WARNING: This page is about a different variant/trim than selected.
NOTE: Removing/fitting wheels 
  • Risk of damage to (ceramic) brake discs 
    1. Carefully guide the wheel towards the wheel hub, thereby preventing any heavy impact on the (ceramic) brake disc.
  1. Expose lines.

    Information 

    • To gain better access for removal of the brake calliper, turn the steering fully either to the right or left. 
    1. 1.1 Remove fastening screws -1, 2-  for holders -3, 4-  for the brake hydraulic lines.
      G16319070Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Hydraulic line holders (shown as an example, brake calliper removed)

    2. 1.2 Detach line for brake pad wear indicator from brake calliper.
    3. 1.3 Disconnect plug connection for speed sensor.

    Information 

    Protect the paintwork on the brake calliper from damage using a suitable cloth.

  2. Carefully press the brake pads back using water pump pliers. Remove a little brake fluid from the reservoir by suction if necessary in order to prevent an overflow!

    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 line must not be exposed! Worn insulation is not important! 
    • 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. 
  3. Partially remove brake calliper. Use removal/installation aid for brake calliper > T10439 - assembly pin  .
    G16319071Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Assembly pin for brake calliper

    Information 

    Never use power tools (impact bolter) for loosening and securing the brake calliper on the wheel bearing housing.

    1. 3.1 Remove upper fastening screw on the brake calliper -arrow-  and insert assembly pin.
      G16319072Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Inserting upper assembly pin

    2. 3.2 Remove lower fastening screw on the brake calliper -arrow-  and insert assembly pin.
      G16319073Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Inserting lower assembly pin

    3. 3.3 Pull the brake calliper as far as required out of installation position until the brake calliper engages in the cutouts on the assembly pins > Brake calliper tool fitted  . Carefully guide brake line and brake hose along with calliper in the process.
    G16319074Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Brake calliper tool fitted

  4. Fit the brake piston between the disc brake pads on the brake calliper using > Nr.144 - piston reset tool (replaces P83)  , see Workshop Equipment Manual, Chapter 2.4 and press the pads back evenly > Pressing back brake pads  . Remove a little brake fluid from the reservoir by suction if necessary in order to prevent an overflow!
    G16319075Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Pressing back brake pads

  5. If you intend to re-use the brake pads, mark the relevant installation position!  Carefully slide a commercially available screwdriver between the brake pad/brake calliper and lever the brake pad out by turning the screwdriver slightly. When doing this, make sure not to damage the dust boots on the brake pistons -arrows-  .
    G16319076Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Removing brake pads (shown removed for a better view)

  6. Remove pad retaining springs.
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