A Audi A6 C7 (2011–2018) uses a 5x112 PCD and a centre bore of 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 66.5 mm or more. If it is larger (as with most aftermarket wheels), add a hub centric ring wheel centre bore → 66.5 mm.
Offset: the original is ET37 to ET39. 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 M14x1.5, tightened to 120 Nm. The nuts or bolts must have the same seat (conical, spherical or flat) as the wheel.
Tyres: original fitment is 225/60R16, 225/55R17, 245/45R18, 255/40R19. For another size, check the diameter difference with the equivalence calculator (under 3 % recommended).
Generations of the Audi A6
Previous generation: Audi A6 C6 (2004–2011) — same 5x112 bolt pattern, but the centre bore goes from 57.1 to 66.5 mm: hub ring one way, no fit the other way. Next generation: Audi A6 C8 (from 2018) — same 5x112 bolt pattern and same centre bore: original wheels swap between the two generations; check offset and diameter.
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
66.5 mm
7.5Jx16
ET37
225/60R16
Version 2
5x112
66.5 mm
8Jx17
ET39
225/55R17
Version 3
5x112
66.5 mm
8Jx18
ET39
245/45R18
Version 4
5x112
66.5 mm
8.5Jx19
ET39
255/40R19
Vehicles with the same PCD and centre bore
Same 5x112 PCD and same 66.5 mm centre bore: wheels from these vehicles bolt on and centre on a Audi A6 C7 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 66.5 mm, and will not fit if it is smaller.
A Audi A6 C7 (2011–2018) has a PCD of 5x112: 5 studs or bolts spaced around a circle 112 mm in diameter.
Does a Audi A6 C7 need a hub centric ring?
The centre bore (hub diameter) of a Audi A6 C7 is 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 A6 C7?
The recorded original offset is ET37 to ET39 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 A6 C7?
The specified tightening torque is 120 Nm for M14x1.5 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 A6 C7?
With the same PCD (5x112) and the same centre bore (66.5 mm), these include: Audi Q8 e-tron, Audi A4, Audi RS Q8, Audi RS6 C8. 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.
Cookies : we use audience measurement cookies (Google Analytics) and, if you accept, advertising cookies. You can change your mind at any time via “Manage cookies” at the bottom of the page. Learn more