Audi S4
Find Tyres for 2003-2005 Audi S4 (B6)
Find the right tyre size for the 2003-2005 Audi S4 — match against your sidewall before booking a fit.
About this generation
The 2003-2005 Audi S4 bridges the modern era of standardised tyre sizing in the UK — most replacement sizes are still in active production from major brands.
This generation of the S4 runs on 19-inch or larger wheels in some trims, which means short-sidewall tyres that handle precisely but are less forgiving on rough UK roads.
Chassis code: B6. Use the chassis code to confirm you have the right generation when ordering tyres.
Common factory tyre sizes
UK-market factory fitments for the 2003-2005 Audi S4 typically include:
Audi works with tyre makers to develop OEM-marked versions for the S4, tuned for the car's suspension calibration. Star, MO, AO or J markings indicate manufacturer-approved tyres.
Wet grip is the most relevant EU label rating for UK driving. On the S4, prioritise wet grip A or B for shorter braking in rain.
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Tyre sizes vary by trim, year, wheel size and manufacturer specification. Confirm the size on your tyre sidewall before fitting.
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Frequently asked questions
Quick answers about UK tyre fitment, MOT rules and seasonal options.
What tyre size does the 2003-2005 Audi S4 use?
Common UK factory fitments for the 2003-2005 Audi S4 include 235/40 R18, 255/35 R19. The exact size depends on the wheel and trim ordered — always confirm on your tyre sidewall before fitting.
The S4 uses 19" or larger wheels — what should I know?
Larger wheels mean lower-profile tyres with shorter sidewalls — that means firmer ride, more pothole sensitivity and shorter tyre life on UK roads. Premium tyres usually repay the extra cost on cars with 19"+ wheels.
What does the chassis code B6 mean for tyre choice?
The B6 chassis code identifies this specific generation of the Audi S4. Tyre fitment guides and parts catalogues use the chassis code to match correct sizes, load indices and speed ratings — useful when ordering online.
What should Audi S4 drivers know about UK potholes?
UK road conditions are tough on tyres. Check sidewall bulges, cuts and tread depth regularly — especially on the inside edge, which often wears unevenly. A 20p coin gives a quick legal-tread check.
What speed rating is required for the 2003-2005 Audi S4?
Performance variants of the Audi S4 typically require a Y-rated (300 km/h) or W-rated (270 km/h) tyre. Match or exceed the original speed rating shown on your sidewall — fitting a lower-rated tyre can affect handling and may be illegal on certain models.
Tyre Finder UK provides general tyre guidance only. We do not guarantee tyre fitment, local stock, prices or fitting availability. Always confirm your tyre size, load rating, speed rating and vehicle requirements using your current tyre sidewall, vehicle handbook, manufacturer guidance or a qualified tyre fitter before fitting.