tirewheelguide

2021 Audi S4 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2021 trim.

Tires for the 2021 Audi S4

Sizes most trims come with first. Open your trim below for its exact size.

  1. 245/40R18 Best-rated standard on 2 trims · optional on 1 · USA, Japan, Europe
    Check price on Amazon · 245/40R18
  2. 245/35R19 Best-rated standard on 1 trim · Japan
    Check price on Amazon · 245/35R19
  3. 225/45R18 Best-rated optional on 2 trims · USA, Europe
    Check price on Amazon · 225/45R18

Also listed: 255/35R19

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Trims sold in 2021
3
Generation
B9 sold in 3 market versions

3 trims sold in 2021

Sold in 3 market versions with different tire sizes. Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Audi S4 B9

2019–2025 3 trims

Europe

1 trim
S4 S4 TDi quattro 337 hp · 3.0L V6 · Diesel 245/40R18 93Y 3 fitments
Generation
B9 Facelift · 2019–2025
Market
Europe
Power
337 hp
Engine
3.0L V6, Diesel
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.5
Check price on Amazon · 245/40R18 Wheels 18x8 ET40 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/40R18 93YRim 18x8 ET40 5x11236 psi
225/45R18 95HRim 18x7.5 ET39 5x11236 psi
255/35R19Rim 19x8.5 ET40 5x11236 psi

How to read 93Y: 93 is the load index (up to 1,433 lb / 650 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET40 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Japan

1 trim
S4 3.0 TFSi quattro (3BA-8WCWGF) 349 hp · 3.0L CWG V6 245/35R19 93Y 2 fitments
Generation
B9 Facelift · 2019–2025
Market
Japan
Power
349 hp
Engine
3.0L CWG V6, Petrol
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.5
Check price on Amazon · 245/35R19 Wheels 19x8.5 ET40 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/35R19 93YRim 19x8.5 ET40 5x11239 psi
245/40R18 93YRim 18x8 ET40 5x11236 psi

How to read 93Y: 93 is the load index (up to 1,433 lb / 650 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET40 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

USA

1 trim
S4 3.0 TFSi quattro 349 hp · 3.0L V6 245/40R18 97H 3 fitments
Generation
B9 Facelift · 2019–2025
Market
USA
Power
349 hp
Engine
3.0L V6, Petrol
Center bore
66.5 mm
Bolt pattern
5x112
Thread
M14 x 1.5
Check price on Amazon · 245/40R18 Wheels 18x8 ET40 · 5x112 · 66.5 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/40R18 97HRim 18x8 ET40 5x11238 psi
225/45R18 95HRim 18x7.5 ET39 5x11236 psi
255/35R19 96YRim 19x8.5 ET40 5x11244 psi

How to read 97H: 97 is the load index (up to 1,609 lb / 730 kg per tire) and H the speed rating (up to 130 mph / 210 km/h). ET40 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean
Rim size
Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD)
Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore
Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure
Recommended cold inflation pressure for that axle, in psi.
Thread size
Lug bolt or nut thread — needed when buying aftermarket fasteners.
Trims sold in 2021
3
Generation
B9 sold in 3 market versions
Other years
All years (1991–2025)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

Open the size calculator

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