2009 Audi S4 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2009 trim.

Tires for the 2009 Audi S4

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

245/40R18 Best-rated standard on 2 trims · Europe, Japan

Check price on Amazon · 245/40R18
235/40R18 Best-rated standard on 1 trim · USA

Check price on Amazon · 235/40R18
255/35R19 Best-rated optional on 2 trims · Europe, Japan

Check price on Amazon · 255/35R19

Also listed: 255/30R20 235/35R19 255/30R19

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Trims sold in 2009: 3
Generations: B8 B7 sold in 3 market versions
Other years: 2005
2006
2007
2008
2009
2010
2011
2012
All years (1991–2025)

3 trims sold in 2009

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 B8

2009–2012 2 trims

Europe

1 trim

S4 3.0 TFSi quattro 329 hp · 3.0L CAKA V6 245/40R18 94Y 3 fitments

Generation: B8 · 2009–2012
Market: Europe
Power: 329 hp
Engine: 3.0L CAKA V6, Petrol
Center bore: 66.5 mm
Bolt pattern: 5x112
Thread: M14 x 1.5

Check price on Amazon · 245/40R18 Wheels 18x8 ET47 · 5x112 · 66.5 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
245/40R18 94Y	Rim 18x8 ET47 ~~5x112~~	33 psi
255/35R19 94Y	Rim 19x8.5 ET43 ~~5x112~~	35 psi
255/30R20 92Z	Rim 20x8.5 ET41 ~~5x112~~	36 psi

How to read 94Y: 94 is the load index (up to 1,477 lb / 670 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET47 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 3.0TFSi (ABA-8KCAKF) 329 hp · 3.0L CAK V6 245/40R18 94Y 3 fitments

Generation: B8 · 2009–2012
Market: Japan
Power: 329 hp
Engine: 3.0L CAK V6, Petrol
Center bore: 66.5 mm
Bolt pattern: 5x112
Thread: M14 x 1.5

Check price on Amazon · 245/40R18 Wheels 18x8 ET47 · 5x112 · 66.5 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
245/40R18 94Y	Rim 18x8 ET47 ~~5x112~~	33 psi
255/35R19 94Y	Rim 19x8.5 ET43 ~~5x112~~	35 psi
255/30R20 92Z	Rim 20x8.5 ET41 ~~5x112~~	36 psi

Audi S4 B7

2005–2009 USA 1 trim

S4 4.2i 340 hp · 4.2L V8 235/40R18 95Y 3 fitments

Generation: B7 · 2005–2009
Market: USA
Power: 340 hp
Engine: 4.2L V8, Petrol
Center bore: 57.1 mm
Bolt pattern: 5x112
Thread: M14 x 1.5

Check price on Amazon · 235/40R18 Wheels 18x8 ET45 · 5x112 · 57.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
235/40R18 95Y	Rim 18x8 ET45 ~~5x112~~	36 psi
235/35R19 95Y	Rim 19x8 ET43 ~~5x112~~	36 psi
255/30R19 95Y	Rim 19x8.5 ET41 ~~5x112~~	39 psi

How to read 95Y: 95 is the load index (up to 1,521 lb / 690 kg per tire) and Y the speed rating (up to 186 mph / 300 km/h). ET45 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.