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Technical Data, Brakes

Brake System

Components Version
Brake circuit distribution Dual-circuit brake system with allocation in pairs: left and right front, left and right rear.
Brake Master Cylinder Tandem brake master cylinder
Brake booster
  • All vehicles except 2.9L TFSI: vacuum brake booster
  • 2.9L TFSI: electromechanical brake booster
Brake pressure regulator via ABS Control Module -J104-

Front Brakes

PR Number   1LC, 1LD (16" brakes) Steel 1LE, 1LF (17" brakes) Steel 1ZA (17" brakes) Steel
Brake Rotor Diameter in mm 318 338 350
  New thickness mm 30 30 34
  Wear limit mm 28 28 32

Front Brakes

PR Number   1LN, 1LP (18" Brakes) Steel 1LB, 1LW (19" Brakes) Steel 1LX (19" Brakes) Ceramic, CSIS
Brake Rotor Diameter in mm 375 400 400
  New thickness mm 36 38 38
  Wear limit mm 34 36 -----
NOTE:

Maximum lateral run-out of steel brake rotor = 0.06 mm

Measurement in installed brake rotor

Use Dial Indicator Bracket - VAS 6079/1; Dial Indicator - 0-10mm - VAS 6079.

Clean dirt and rust off the brake rotor.

Measure 10 mm away from the outer edge of the brake rotor.

Brake pads wear limit. Refer to BRAKE PADS, CHECKING THICKNESS .

Rear Brakes

PR Number   1KD, 1KE (16" Brakes) Steel 1KF, 1KJ (17" Brakes) Steel 2EH, 1KQ (18" Brakes) Steel
Brake Caliper        
  Brake Caliper Piston   1 1 1
Brake Rotor Diameter in mm 300 330 350
  New thickness mm 12 22 28
  Wear limit mm 10 20 26

Rear Brakes

PR Number   1KZ Ceramic, CSIC
Brake Caliper    
  Brake Caliper Piston   1
Brake Rotor Diameter in mm 370
  New thickness mm 30
  Wear limit mm -----
NOTE:

Maximum lateral run-out of steel brake rotor = 0.06 mm

Measurement in installed brake rotor

Use Dial Indicator Bracket - VAS 6079/1; Dial Indicator - 0-10mm - VAS 6079.

Clean dirt and rust off the brake rotor.

Measure 10 mm away from the outer edge of the brake rotor.

Brake pads wear limit. Refer to BRAKE PADS, CHECKING THICKNESS .