Front Brake Caliper Identification

WARNING: This page is about a different car, the 2004 Audi S4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

A4 and S4 models are equipped with one of several brake systems. Front brake caliper application is designated by the Production Code (Pr. No.). Pr. No. is printed on vehicle data sticker located in spare tire well or in owners customer's service schedule. See Fig 1 . For front brake caliper Pr. Nos., see A4 & S4 PRODUCTION CODES table.

A4 & S4 PRODUCTION CODES

Front Brake Caliper

Production Number

Front

FN3

1LB/ 1LE/ 1LT/1LF

C54

1LZ

FNR-G60

1LA/ 1LJ

Rear

C38 (Version 1)

⁽¹⁾

C38 (Version 2)

⁽¹⁾

C43

⁽¹⁾

⁽¹⁾	No production were code available from manufacturer. To differentiate between systems, see DISC BRAKE SPECIFICATIONS table.

Fig 1: Identifying Vehicle Data Sticker & Brake Version

Courtesy of AUDI OF AMERICA, INC.