2009 Audi S4 Wheel Offset

Quick specs

Wheel size: 8x18 · 8x19 · 8.5x19 · 8.5x20
Offset: ET45 · ET43 · ET41 · ET47
Backspacing: Multiple — see configurations
Bolt pattern: 5×112
Center bore: 66.6 mm, 57.1 mm, 66.5 mm
Thread: M14×1.5
Tire size: Multiple — see configurations

OEM configurations

Configuration	Front	Rear	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
4.2i · 4.2L, V8, Petrol	8x18	8.5x19	ET45 / ET41	5.77 in	235/40R18 / 255/30R19	5x112	57.1 mm	M14 x 1.5
4.2i · 4.2L, V8, Petrol	8x19	8.5x19	ET43 / ET41	5.69 in	235/35R19 / 255/30R19	5x112	57.1 mm	M14 x 1.5
3.0 TFSi quattro · 3.0L, CAKA, V6, Petrol	8x18	—	ET47	5.85 in	245/40R18	5x112	66.5 mm	M14 x 1.5
3.0 TFSi quattro · 3.0L, CAKA, V6, Petrol	8.5x19	—	ET43	5.94 in	255/35R19	5x112	66.5 mm	M14 x 1.5
3.0 TFSi quattro · 3.0L, CAKA, V6, Petrol	8.5x20	—	ET41	5.86 in	255/30R20	5x112	66.5 mm	M14 x 1.5
3.0TFSi (ABA-8KCAKF) · 3.0L, CAK, V6, Petrol	8x18	—	ET47	5.85 in	245/40R18	5x112	66.5 mm	M14 x 1.5
3.0TFSi (ABA-8KCAKF) · 3.0L, CAK, V6, Petrol	8.5x19	—	ET43	5.94 in	255/35R19	5x112	66.5 mm	M14 x 1.5
3.0TFSi (ABA-8KCAKF) · 3.0L, CAK, V6, Petrol	8.5x20	—	ET41	5.86 in	255/30R20	5x112	66.5 mm	M14 x 1.5

Wheels and hardware

Lug hardware

Wheel locks

Real-World 2009 Audi S4 Wheel Setups

Observed aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.

Common custom wheel sizes

Among builds in our database for this model year:

19-inch — 3 documented builds
20-inch — 2 documented builds

5 documented builds.

DiameterLayout

Staggered · 20×8.5 ET33 / Rear unknown

Documented on a 2009 Audi S4 build — observed custom fitment, not a universal fit guarantee.

Wheel: OEM Audi Q5

Front: 20×8.5 ET33 · 255/30R20
Rear: —

Compared with OEM

Compared with the 20×8.5 ET41 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 8 mm farther toward fender (more outward poke)
Inner edge 8 mm farther from suspension (more inner clearance)

View full build on Modified1

Staggered · 19×8.5 ET35 / Rear unknown

Documented on a 2009 Audi S4 build — observed custom fitment, not a universal fit guarantee.

Wheel: Avant Garde M580

Front: 19×8.5 ET35 · 235/35R19
Rear: —

Compared with OEM

Compared with the 19×8 ET43 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 14.3 mm farther toward fender (more outward poke)
Inner edge 1.7 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM

View full build on Modified1

Staggered · 19×8.5 ET32 / Rear unknown

Documented on a 2009 Audi S4 build — observed custom fitment, not a universal fit guarantee.

Wheel: HRE 441R

Front: 19×8.5 ET32 · 225/35R19
Rear: —

Compared with OEM

Compared with the 19×8 ET43 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 17.3 mm farther toward fender (more outward poke)
Inner edge 4.7 mm farther from suspension (more inner clearance)
Width +0.5" vs OEM

View full build on Modified1

19×9.5 ET32

Documented on a 2009 Audi S4 build — observed custom fitment, not a universal fit guarantee.

Tires: 255/35R19

Compared with OEM

Compared with the 19×8 ET43 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 30 mm farther toward fender (more outward poke)
Inner edge 8 mm closer to suspension (less inner clearance)
Width +1.5" vs OEM

View full build on Modified1

Staggered · 20×10 / Rear unknown

Documented on a 2009 Audi S4 build — observed custom fitment, not a universal fit guarantee.

Wheel: Rotiform SPF

Front: 20×10
Rear: —

Compared with OEM

Compared with the 20×8.5 ET41 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Compare your own setup

See how a different width or offset sits versus an OEM configuration for this year.

OEM baseline

Open full fitment calculator

More specs for the 2009 Audi S4

Each OEM row is a catalog configuration. Offset ranges are not collapsed when the database has exact setups. Documented aftermarket builds are observed setups only — not universal fit or clearance confirmation.