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Home >> Porsche >> 2021 >> Taycan Base >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> 47 Brakes - Brake Hydraulic System, Regulator, Booster 2.0L -- Y1A - TAYCAN (Y1A) >> WM, 471519 Removing And Installing Brake Master Cylinder >> Removing Brake Master Cylinder

Removing Brake Master Cylinder

WARNING: Danger of injury and damage from brake fluid! 
  • Poisonous if swallowed! 
  • Irritation and damage to skin 
  • Avoid contact with paint surfaces 

    → Store brake fluid in suitable, labelled containers only

    → Wear protective gloves and goggles

    → In the event of contact (eyes or skin), wash immediately with water

    → In the event of contact with paint surfaces, wash off immediately with water - do not wipe off

Information 

When carrying out work during which fluids can escape, leave electric plug connections to be disconnected locked and connected for as long as possible. This prevents fluid from getting onto electric contacts and causing corrosion.

Information 

Brake fluid - even thinned brake fluid - causes corrosion on electric contacts, thereby impairing functions.

  1. Have stoppers ready for closing off the connection openings.
  2. Place suitable material underneath for collecting emerging brake fluid.
  3. Disconnect brake fluid reservoir connections -1 and 2-  .
    1. 3.1  Release and disconnect electric plug connection -1-  .
    2. 3.2  Release and disconnect brake pressure line -2-  .
    3. 3.3  Close off brake pressure line -2-  and brake fluid reservoir connection using a stopper.
    G15553566Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Electric plug connection and brake pressure line

    Information 

    Any escaping brake fluid must be removed immediately. If necessary, rinse contacts with water and dry them.

  4. Disconnect brake lines -1-  on the brake master cylinder -2-  .
    1. 4.1  Place suitable material underneath the brake master cylinder -2-  to soak up escaping fluids.
    2. 4.2  Unscrew union nuts on brake lines -3-  and pull brake lines -1-  out of the brake master cylinder -2-  .
    3. 4.3  Close off line connections using stoppers and move brake lines -1-  aside carefully.
    4. 4.4  Close off connections with stoppers.
    G15553567Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Brake lines

  5. Remove brake master cylinder -1-  .
    1. 5.1  Unscrew nuts -2-  .
    2. 5.2  Remove brake master cylinder -1-  by pulling it forward out of the brake booster -3-  .
    G15553568Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Brake master cylinder