2005 Audi S4 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x112 on every 2005 trim.

Tires for the 2005 Audi S4

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

235/40R18 Best-rated standard on 2 trims

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

Check price on Amazon · 235/35R19
225/45R17 Best-rated optional on 1 trim

Check price on Amazon · 225/45R17

Also listed: 255/30R19 245/30R20

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Trims sold in 2005: 2
Generations: B7 B6
Other years: 2001
2002
2003
2004
2005
2006
2007
2008
All years (1991–2025)

2 trims sold in 2005

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Audi S4 B7

2005–2009 1 trim

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

Generation: B7 · 2005–2009
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. Compare offsets in the wheel offset calculator.

Audi S4 B6

2003–2005 1 trim

S4 4.2i 339 hp · 4.2L V8 235/40R18 95Y 4 fitments

Generation: B6 · 2003–2005
Power: 339 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
225/45R17 91H	Rim 17x7 ET38 ~~5x112~~	36 psi
235/35R19 95Y	Rim 19x8 ET43 ~~5x112~~	39 psi
245/30R20 95Y	Rim 20x8.5 ET41 ~~5x112~~	39 psi

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.