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HOMESERVICE MANUALSAUDI2024S3 PREMIUMREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESBRAKES CONTROL SYSTEMSGENERAL, TECHNICAL DATA (BRAKE SYSTEM)00 GENERAL, TECHNICAL DATATECHNICAL DATATECHNICAL DATA, BRAKES
2024 Audi S3 Premium

Technical Data, Brakes

2024 Audi S3 PremiumSECTION Technical Data, Brakes

Brake system

Components Version
Brake circuit distribution Dual-circuit brake system with diagonal distribution:
  • Left front wheel and right rear wheel
  • Right front wheel and left rear wheel
Brake Master Cylinder Tandem brake master cylinder
Brake booster Electromechanical brake booster
Brake pressure regulation Via ABS Control Module -J104-

Steel front brakes

PR Number   1ZE 1ZD 1ZU
Brake Caliper        
  Brake Caliper Piston   1 1 1
Brake Rotor diameter in mm 288 306 312
  New thickness mm 25 26 25
  Wear limit mm 23. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES , and Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES  24. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES  and Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES . 23. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES , and Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES 
Brake Pads        
  Wear limit   Refer to BRAKE PADS, CHECKING THICKNESS .
(1) The wear limit is specified on the brake rotor.
PR Number   1ZK, 1ZL 1LC, 1LG, 1LJ 1LY, 1LZ
Brake Caliper        
  Brake Caliper Piston   1 1 2
Brake Rotor diameter in mm 312 340 357
  New thickness mm 25 30 34
  Wear limit mm 23. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES , and Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES  28. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES  and Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES . 32. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES  and Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES .
Brake Pads        
  Wear limit   Refer to BRAKE PADS, CHECKING THICKNESS .
(1) The wear limit is specified on the brake rotor.
PR Number   1LF, 1LH    
Brake Caliper        
  Brake Caliper Piston   6    
Brake Rotor diameter in mm 374    
  New thickness mm 36    
  Wear limit mm 34. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES  and Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES .    
Brake Pads        
  Wear limit   Refer to BRAKE PADS, CHECKING THICKNESS .
(1) The wear limit is specified on the brake rotor.

Ceramic front brakes

PR Number   1LL, 1LN, 1LU
Brake Caliper   Six-Piston Brake
  Brake Caliper Piston   6
Brake Rotor Diameter in mm 380
  New thickness mm 38. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES .
  Wear limit mm Refer to BRAKE ROTORS, CHECKING, CERAMIC BRAKES 
Brake Pads    
  Wear limit   Refer to BRAKE PADS, CHECKING THICKNESS .
(1) The wear limit is specified on the brake rotor.

Rear Brakes

PR Number   1KE, 2EC, 2EJ 1KD, 1KF, 1KI, 1KJ, 1KK, 1KY  
Brake Caliper        
  Brake Caliper Piston   1 1  
Brake Rotor diameter in mm 272 310  
  New thickness mm 10 22  
  Wear limit mm 8. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES  and Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES  20. Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES  and Refer to BRAKE ROTOR, CHECKING, STEEL BRAKES .  
Brake Pads        
  Wear limit   Refer to BRAKE PADS, CHECKING THICKNESS .
(1) The wear limit is specified on the brake rotor.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.