A Audi S8 (1996–2002) uses a 5x112 PCD and a centre bore of 57.1 or 66.5 mm.
Any wheel must match the vehicle's PCD exactly: there is no tolerance, unless you use a PCD adapter.
Centre bore: the wheel must have a centre bore of 57.1 mm or more. If it is larger (as with most aftermarket wheels), add a hub centric ring wheel centre bore → 57.1 mm.
Offset: the original is ET32 to ET40. Compare your future wheel with the offset calculator (your vehicle is already selected) to see how many millimetres further in or out it will sit.
Fixings: thread M14x1.50, tightened to 120 Nm. The nuts or bolts must have the same seat (conical, spherical or flat) as the wheel.
Tyres: original fitment is 245/50R17, 235/50R19. For another size, check the diameter difference with the equivalence calculator (under 3 % recommended).
All recorded versions (2)
The original specs vary with the year, trim or wheel size. Identify your version from the tyre size marked on the sidewall.
Version
PCD
Centre bore
Wheel
Offset
Tyre
Version 1
5x112
57.1 mm
—
ET40
245/50R17
Version 2
5x112
66.5 mm
—
ET32
235/50R19
Vehicles with the same PCD and centre bore
Same 5x112 PCD and same 57.1 mm centre bore: wheels from these vehicles bolt on and centre on a Audi S8 without rings. Offset, width, diameter and caliper clearance still need checking.
These vehicles also use 5x112 but with a different centre bore: their wheels need a hub centric ring if their centre bore is larger than 57.1 mm, and will not fit if it is smaller.
A Audi S8 (1996–2002) has a PCD of 5x112: 5 studs or bolts spaced around a circle 112 mm in diameter.
Does a Audi S8 need a hub centric ring?
The centre bore (hub diameter) of a Audi S8 is 57.1 or 66.5 mm. A wheel with a larger centre bore is fitted with a hub centric ring that brings it down to the hub diameter. A wheel with a smaller centre bore cannot be fitted.
What offset (ET) for a Audi S8?
The recorded original offset is ET32 to ET40 depending on the version and wheel size. A lower ET pushes the wheel outwards, a higher ET pulls it inwards: check wheel well and caliper clearance before making any change.
What tightening torque for the wheels of a Audi S8?
The specified tightening torque is 120 Nm for M14x1.50 fixings. Tighten in a criss-cross pattern with a torque wrench and check the tightness again after about fifty kilometres.
Which vehicles have the same PCD as a Audi S8?
With the same PCD (5x112) and the same centre bore (57.1 mm), these include: Audi Q4 E-TRON, Audi A3 8Y, Audi RS Q3, Audi SQ2. Offset, width and rim diameter still need checking for each vehicle.
Does a value look wrong, or is a version missing? Let us know, we check every report.
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