Audi A6 C7 PCD

2011–2018
VERIFIED
⌀66.5
Centre bore66.5 mm
Offset (ET)ET37 to ET39
Fixing typeM14x1.5
Tightening torque120 Nm
Original tyres225/60R16, 225/55R17, 245/45R18, 255/40R19
Restylage 2014 identique
Performance parts for your Audi A6 C7 Brakes, suspension, intake, exhaust… at STR Performance, French tuning shop. See the parts → (partner link)

Fitting wheels on a Audi A6 C7

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.

  • PCD: 5x112 required. See all vehicles with 5x112.
  • 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.

All recorded versions (4)

The original specs vary with the year, trim or wheel size. Identify your version from the tyre size marked on the sidewall.

VersionPCDCentre boreWheelOffsetTyre
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.

Will wheels from another vehicle fit your A6 C7?

Choose the vehicle the wheels come from: we compare the hub, then each original wheel to the millimetre.

Frequently asked questions

What is the PCD of a Audi A6 C7?

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.