The Audi S4 is a high-performance sedan with parts and features that vary by model year. Here is the breakdown of Audi S4 parts:
B5 S4 (1997–2002): Features a 2.7L twin-turbo V6 engine, 6-speed manual or 5-speed automatic transmission, sport suspension, larger brake discs, and a sleek design with aluminum mirror caps.
B6 S4 (2003–2005): Upgraded to a 4.2L naturally aspirated V8, paired with a 6-speed manual or Tiptronic automatic transmission. Enhanced suspension and lightweight aluminum components, with Alcantara interior options.
B7 S4 (2005–2008): Continued the 4.2L V8 with improved ECU software, updated Quattro AWD, redesigned grille, and LED taillights. Many aftermarket intake and exhaust options became available.
B8 S4 (2009–2016): Introduced a 3.0L supercharged V6 engine, S-Tronic dual-clutch transmission, optional sport differential, and lightweight aluminum design. Interior upgrades included a modern MMI system.
B9 S4 (2017–present): Features a 3.0L turbocharged V6 engine with increased power, 8-speed Tiptronic transmission, a 48V mild hybrid system, adaptive dampers, and advanced tech like the virtual cockpit and driver-assist systems.
When maintaining or upgrading, ensure parts like brakes or suspension match the specific model year.