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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Mechanical Components (Brake System) (2 Of 2) >> 46 Mechanical Components >> Front Brakes >> Overview - Front Brakes 1LA, 1LB

Overview - Front Brakes 1LA, 1LB

NOTE:

Install complete repair set

When extracting brake fluid, always use a bleeder bottle that is used exclusively for brake fluid. Brake fluid is poisonous, and must never be siphoned by mouth under any circumstances!

Overview

Fig 1: Exploded View Of BRAKE System
GWWA46-10111Courtesy of AUDI OF AMERICA, LLC
  1. Brake Shield
  2. Bolt
    • 18 Nm
  3. Spreader Spring
    • Must sit in the brake piston
  4. Connector
    • Remove from the bracket when replacing the brake pad
  5. Bolt
    • 190 Nm
  6. Brake Carrier
    • Bolt to wheel bearing housing
  7. Brake Pads
    NOTE:

    The brake pad with spreader spring sits inside. The spreader spring must be inserted inside the brake piston.

    The inner pad with the spreader spring for the brake piston is indicated with an arrow. The arrow must point in the rotation direction of the brake rotor when driving forward. Noises can result from incorrect installation.

  8. Spring
    • Before inserting the pads, clean the contact surfaces and apply a layer of Polycarbamide Grease :G 052 142 A2  .
    • Insert in both holes of brake caliper housing
      NOTE:

      The spring must be pressed under brake carrier after it is inserted in both holes. If improperly installed, the wear of the outer brake pad cannot be adjusted, thereby increasing brake pedal travel.

  9. Brake Rotor
  10. Bolt
    • 5 Nm
  11. Brake Caliper
  12. Guide Pin
    • 30 Nm
  13. Cap
    • Remove the guide pins to remove
    • Insert the guide pins after installation
  14. Brake Hose
    • Brake caliper side: 16 Nm
    • Do not remove the brake hose when changing the brake pads.
    • Install in the brake caliper housing