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Home >> Audi >> 2019 >> S4 Premium Plus >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Mechanical Components (8W) - Brakes >> 46 Mechanical Components >> Rear Brakes >> Rear Brake Pads, Removing And Installing >> Removing >> Drive Back The Parking Brake Motor:

Drive Back The Parking Brake Motor:

-Drive Back The Parking Brake Motor:  -

Fig 1: Connecting Diagnostic Cable VAS 5051/5A To Diagnostic Connector
GWWA00-10303Courtesy of AUDI OF AMERICA, LLC

-- Connect the Vehicle Diagnostic Tester to the vehicle data link connector when the ignition is switched off.

-- Switch the ignition on.

-- Select Diagnostic  and start.

-- Select the Test plan  tab.

-- Select Select individual tests...  and select the following tree structures consecutively:

-- Start the selected program and follow the instructions on the Vehicle Diagnostic Tester display.

-- Free up the wire by removing the protective cap -2- from the bleeder screw and opening the clip -1-.

GWWA46-10525Courtesy of AUDI OF AMERICA, LLC

-- Carefully remove the contact -4- for the brake pad wear indicator sensor using pliers while paying attention to the clip -3-.

NOTE:

If the clips go missing, the brake pad wear indicator sensor wire must be replaced.

-- Remove the bolts -arrows- by counterholding the guide pins -1 and 2-.

Fig 2: Identifying Guide Pins
GWWA46-10254Courtesy of AUDI OF AMERICA, LLC

-- Remove the brake caliper and guide the brake pad wear indicator sensor wire out at the same time.

CAUTION:

Risk of damaging the brake hose, brake line and brake piston.

  • Do not let the brake caliper hang on the brake hose. Do not support the weight with the brake hose.
  • Replace the brake hose if damaged.
  • The brake line must not be bent.
  • A damaged brake line must be replaced.
  • Do not press the brake pedal when the brake caliper is removed.
  • Do not operate the parking brake when the rear brake caliper is removed.
  • A damaged brake piston must be replaced.

-- Hang the brake caliper using a suitable wire.

-- Remove the brake pads.