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Home >> Audi >> 2020 >> S6 Prestige >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Mechanical Components (Brake System) (2 Of 3) >> 46 Mechanical Components >> Removal And Installation >> Front Bake Pads

Front Bake Pads

-- Remove wheels.

-- Mark positions of brake pads that are to be used again.

Install again in same place to ensure uniform braking.

-- Disconnect harness connector by pressing spring (bottom arrow).

GWWV46-0984Courtesy of AUDI OF AMERICA, LLC

-- Remove cap (top arrow) from upper guide pin.

GWWV46-0985Courtesy of AUDI OF AMERICA, LLC

-- Carefully lift holding strap up a little from lower part of connector with screwdriver, then turn 90° to right or left and remove from bracket.

-- Detach wire for brake pad wear indicator from lower cap.

-- Remove lower cap.

-- Pry brake pad retaining spring out of brake caliper housing with screwdriver, and remove.

Fig 1: Identifying Brake Pad Retaining Spring, Brake Caliper Housing And Screwdriver
GWWN46-0006Courtesy of AUDI OF AMERICA, LLC

-- Remove both guide pins from brake caliper.

Fig 2: Identifying Caliper Guide Pins, Removal/Installation
GWWA46-0041Courtesy of AUDI OF AMERICA, LLC

-- Remove brake caliper housing.

WARNING:
  • Do not loosen brake hose or lines.
  • Secure the brake caliper with a piece of wire in order to relieve the stress on the brake hose.
  • Do not allow the caliper to hang by the brake hose.

-- Remove brake pads from brake caliper housing and remove brake pad carrier.

-- Press piston back in brake caliper housing

Fig 3: Pressing Piston Back Into Caliper Housing
GWWA46-0042Courtesy of AUDI OF AMERICA, LLC
CAUTION:

Brake fluid is poisonous and must never be extracted by mouth through a hose.

WARNING:
  • Extract part of the brake fluid from the brake fluid reservoir before pushing back the pistons.
  • Use the bleeder bottle or a plastic bottle, which is used only for brake fluid, for extracting the fluid.
  • If this is not done, particularly if the brake fluid has been topped up in the meantime, brake fluid may flow out and cause damage.

-- Install inner brake pad, with brake pad wear indicator wire, in brake caliper housing.

GWWV46-0989Courtesy of AUDI OF AMERICA, LLC

-- Install outer brake pad on brake pad carrier.

-- Install brake caliper housing with both guide pins on brake pad carrier and torque guide pins.

Tightening torque: 25 Nm (18 ft lb) 

-- Install both guide pin caps.

-- Install lower part of connector in bracket.

-- Clip wire for brake pad wear indicator into hook in lower cap and route appropriately.

-- Connect harness connector.

-- Install retaining spring in brake caliper housing.

NOTE:

Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions.