The Audi S4 is the performance variant of the A4 — same body, 349-hp twin-turbocharged 3.0L V6, sport suspension, and Quattro AWD. Unlike many performance sedans, the S4 runs a square fitment — same size all four corners — which makes rotation practical. It is one of the few mid-size performance sedans where 4-wheel rotation is fully supported from the factory.
Audi S4 Tire Sizes and OEM Fitment
The current B9/B9.5 S4 (2017-present) ships on 255/35R19 tires on 19-inch wheels — the same size all four corners, enabling full rotation. Optional 20-inch packages use 265/30R20.
The B8/B8.5 S4 (2009-2016) used 245/40R18 as the standard size — also square, all four corners.
OEM tires on the S4 include Pirelli P Zero (AO), Continental SportContact, and Bridgestone Potenza in OE-marked compound versions specific to the S4 platform. These are validated for the S4 suspension tuning but are not required for replacement — any performance tire matching load and speed index works.
Best Performance Tires for the S4
For the 255/35R19 fitment: the Michelin Pilot Sport 4S is the top summer recommendation for the S4. Best wet and dry grip available in this size, consistently preferred on Audi-specific forums.
The Continental SportContact 7 in 255/35R19 is the strongest competitor — some S4 owners prefer its steering feedback characteristics over the PS4S.
For S4 owners who want year-round performance: the Michelin Pilot Sport A/S 4 in 255/35R19 gives up approximately 10-15% of summer tire peak grip in exchange for 3PMSF winter certification. For Georgia's mild winters — primarily rain and cold, rarely ice — the PA/S 4 is a practical one-tire solution.
Continental ExtremeContact DWS06+ in 255/35R19 is the value-tier UHP all-season: significantly less expensive than the Michelin with competitive performance.
Frequently asked
What size tires does the Audi S4 use?
B9/B9.5 S4 (2017-present): 255/35R19 standard, optional 265/30R20. B8/B8.5 S4 (2009-2016): 245/40R18. All square setups — same size all four corners.
Can you rotate Audi S4 tires?
Yes — the S4 runs the same size on all four corners. Full front-to-rear rotation every 5,000 to 7,500 miles. The 349-hp output under hard acceleration stresses all tires — regular rotation extends life.
What are the best tires for the Audi S4?
Summer: Michelin Pilot Sport 4S or Continental SportContact 7. All-season: Michelin Pilot Sport A/S 4 or Continental ExtremeContact DWS06+. Both in 255/35R19.
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Last updated 2026-06-27. General guidance only — confirm specifics with a local shop for your exact vehicle.