FRENES

Wheels from Audi S4 on Audi A3 8P: compatible?

Yes, with hub centric rings

Same 5x112 PCD, but the centre bore of the wheels from Audi S4 (66.5 mm) is larger than the hub of Audi A3 8P (57.1 mm): you need 4 hub centric rings 66.5 → 57.1.

Rings 66.5 → 57.1

Audi S41991–1994Audi A3 8P2003–2012
PCD5x1125x112
Centre bore66.5 mm57.1 mm
ThreadM14x1.50M14x1.50
Original wheels R
R
R
≈6Jx15 ET40
≈7.5Jx18 ET40		 ≈6Jx15 ET50

≈: width estimated from the original tyre size.

Wheel by wheel: offset and tyres

Each original wheel from Audi S4 is compared with the one from Audi A3 8P of the same diameter: how much closer the wheel gets to the shock absorber or how far it sticks out of the wheel arch, and whether the tyre keeps the same overall diameter.

  • ≈6Jx15 ET40 · 195/65R15 — Check on the car

    Compared with the original ≈6Jx15 ET50 on Audi A3 8P: shock absorber side −10 mm, wheel arch side +10 mm, tyre diameter +0 %. Comparison for guidance only (estimated width). Check in detail

  • ≈7.5Jx18 ET40 · 245/40R18

    Audi A3 8P has no 18-inch original wheel in our data: check the approved fitments and caliper clearance.

Before fitting the wheels

An identical hub is not enough: offset, width and diameter change the position of the wheel, and larger calipers can touch a smaller wheel. Original wheels often use bolts or nuts with a specific seat: keep the fixings intended for the wheel, with the thread of Audi A3 8P (M14x1.50), tightened to the torque shown on its vehicle page. Finally, check that the size is among the approved fitments for your vehicle. This comparison is for guidance only: have the fitting approved by a professional.

And the other way round: wheels from Audi A3 8P on Audi S4?