2020 Audi A6 Wheel Interchange

OEM wheel and tire fitment specs for the 2020 Audi A6, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.

Recorded OEM specifications for the 2020 Audi A6, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.

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2020 Audi A6 Fitment Specs

Baseline mounting dimensions used for interchange decisions.

Bolt Pattern5x112
Center Bore66.5 mm
Lug ThreadM14 x 1.5 View M14 x 1.5 options on Amazon
OEM Wheel Sizes17" – 21"
OEM Widths7.5" – 8.5"
OEM Offset Range36 mm – 43 mm

Multiple OEM configurations exist for this vehicle. Fitment can vary by trim, brakes, and factory wheel package – confirm your exact setup before buying.

Center-bore records disagree: year-level hub 66.6 mm vs trim range 66.5–66.5 mm. Interchange below does not treat this as an unqualified match.

Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.

Explore wheels at Tire Rack

Selected size: 17 × 7.5″ · ET +36

Showing matching bolt patterns and offsets up to 20 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.

We may earn a commission when you buy through these links. Prices and availability may change.

Donor vehicles with overlapping OEM specs

These are vehicle-year records whose recorded OEM ranges overlap this 2020 Audi A6. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.

Evaluated 188 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.

2011–2019, 2021–2022 Audi A6

Check wheel configurationCenter-bore records disagree

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2021
  • 2022
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.5 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Center-bore records disagree (target year-level hub 66.6 mm vs trim range 66.5–66.5 mm; donor year-level hub 66.6 mm vs trim range 57.1–66.5 mm). Unqualified overlap is not claimed until the conflict is resolved.

2023 Audi A6

Insufficient dataCenter-bore records disagree
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.5 mm · same recorded hub figure
  • Wheel geometryNot fully recorded

Wheel width/offset data is incomplete.

2019, 2021–2022 Audi e-tron

Check wheel configurationCenter-bore records disagree

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2019
  • 2021
  • 2022
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.6 mm donor vs hub 66.5 mm
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Dataset suggestionHub-centric rings ≈ 66.6 → 66.5 mm – not a verified installation requirement.

Hub-centric rings of about 66.6 → 66.5 mm mm may be relevant if the wheel bore is larger than the hub; they cannot enlarge a smaller bore.

2007–2015 Audi A4

Check wheel configurationCenter-bore records disagree

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2007
  • 2008
  • 2009
  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.5 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Center-bore records disagree (target year-level hub 66.6 mm vs trim range 66.5–66.5 mm). Unqualified overlap is not claimed until the conflict is resolved.

Audi A6 Years With Compatible Wheels

Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.

Will Wheels From Another Vehicle Fit?

Compare a donor vehicle or custom wheel against this 2020 Audi A6. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.

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Compare wheel compatibility between two vehicles

Wheels from (donor vehicle)

Installed on (your vehicle)

Selected Car:

2020 Audi A6

Compare Rims

Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
-
5x112
Center Bore
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
-
66.5 mm
Thread Size
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
-
M14 x 1.5
Rim Diameter
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
-
19"
Rim Width
Rim Width
The distance between the inner edges of the wheel is measured in inches.
-
8.5"
Wheel Offset
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
-
40 mm
Backspacing
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
-
-
Wheel Fasteners
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
-
-

Wheel Fitment Parts for the 2020 Audi A6

Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.

Lug Nuts / Wheel Bolts

M14 x 1.5

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2020 Audi A6 Wheel Fitment Guide - Clear, Safe, and Easy

1. Misconception

If a wheel is 5x112, it should fit a 2020 Audi A6 without issues.

2. Why it seems true

Many Audi, VW, and Mercedes models share 5x112. Listings highlight bolt pattern first, so it feels like the key spec. Sellers often show “fits Audi A6” as a group, and the pictures look right. That creates a mental model where bolt pattern equals compatibility.

3. What is true

Bolt pattern is only one checkpoint. Think of fitment as a system: hub bore, offset, width, diameter, brake clearance, hardware, and tire size all matter. Your A6 needs wheels that match the hub, clear the brakes and fenders, and keep geometry within reason.

Quick recap of the known OEM values for the 2020 Audi A6 on wheelinterchange.com. These come from factory configurations, and they can vary by trim or package:

Spec Known OEM value Notes
Bolt pattern 5x112 Required for stud-hole alignment
Center bore 66.6 mm Hub-centric to Audi C8 A6
Thread size M14 x 1.5 Match wheel bolt threads exactly
One factory wheel size 17 x 7.5, ET36, backspacing 5.17 in Example OEM setup - trims vary
One factory tire size 245/45R19 From a different OEM setup - also trim dependent

Notice the 17-inch wheel and the 19-inch tire don’t pair together. That’s a sign there are multiple OEM packages for this year. Different trims and options can change wheel diameter, width, and offset. The safe move is to confirm your exact build using the driver door-jamb label, the owner’s manual, or the OEM parts catalog. Then use the on-page calculator to compare changes.

Using the calculator without guesswork

  • Set “Installed on” to 2020 Audi A6.
  • Set “Wheels from” to your donor vehicle or the aftermarket wheel size you’re considering.
  • Adjust “Custom wheel size” for diameter, width, and offset. Watch inner and outer clearance changes.
  • If you change rim diameter, adjust “Custom tire size” so the overall tire diameter stays sensible.
  • Use the visual comparison to see poke, inner clearance to strut, and speedometer impact.

4. Implications

Here’s the practical mental model. Offset moves the wheel in and out. Lower ET pushes the wheel outward and can rub fenders. Higher ET pulls it inward and can rub the strut or liners. Width changes both inner and outer positions by half the width change each side, then offset shifts the whole assembly.

With the known 17 x 7.5 ET36 example, the backspacing is about 5.17 inches. If you move to a wider wheel or different offset, the calculator will show how much inner clearance you lose or gain. A rule of thumb: keep overall tire diameter close to stock to avoid speedo error and keep ride and ABS behavior predictable. Since multiple OEM tire diameters exist across trims, confirm your baseline, then keep changes modest.

Hardware matters, too. The A6 hub bore is 66.6 mm. If your wheel’s center bore is larger, hub-centric rings can stabilize it. If it’s smaller, it will not seat. The thread size is M14 x 1.5. Wheel bolts need the correct seat type for the wheel design - many OEM Audi wheels use a ball seat, while some aftermarket wheels use a cone seat. Match the seat type to the wheel brand’s spec to maintain clamping force and avoid damage.

Brake clearance is another quiet variable. Diameter and spoke shape affect caliper clearance. If the donor wheel came from a smaller-brake model, it may not clear your calipers. When in doubt, a physical test fit or a template from the wheel maker helps.

5. Quick tests

  • Hub-centric check: The wheel should sit snugly on the 66.6 mm hub. If it rocks before bolts are tightened, use 66.6 hub-centric rings sized to your wheel’s larger bore.
  • Bolt and seat match: Verify M14 x 1.5 threading and the correct seat type for your wheel. Do a hand-thread test. Resistance or cross-thread feel means stop and re-check.
  • Brake clearance: With the wheel mounted finger-tight, spin it and look for rub points near calipers and knuckles. Check at least 2-3 mm visual clearance as a working minimum.
  • Lock-to-lock and compression: With the car on the ground, turn full left and right. Drive slowly over a speed bump and into a driveway at an angle. Listen for rub on liners or fender lips.
  • Speedometer sanity check: After changing tire size, compare GPS speed to cluster at 30-60 mph. The calculator shows expected variation - use it to dial in a closer match.
  • Load rating and torque: Confirm the wheel and tire load ratings meet or exceed your door-jamb GAWR. Tighten bolts using a torque wrench to the value in your owner’s manual.

How to confirm your exact OEM setup

  • Door-jamb label: Note the tire size listed for your trim.
  • Owner’s manual: Look for wheel size options and torque specs.
  • OEM parts catalog or dealer: Provide your VIN for precise wheel width, diameter, and offset.
  • Use the calculator: Start with the confirmed OEM size as “Installed on,” then compare your new setup.

Tools and small parts that help

Bottom line

5x112 gets you in the door, but offset, width, hub bore, brake clearance, and tire size keep the car safe and happy. The 2020 Audi A6 can ship with different OEM wheel and tire packages, so it’s normal to see mixed data. Confirm your baseline, then use the on-page calculator to model changes before you buy. Think of it as a quick fitment rehearsal that turns uncertainty into a predictable, clean install.

Source: wheelinterchange.com - fitment calculator and the known OEM values listed above. If a spec is missing for your exact trim, verify by VIN with OEM documentation and plug it into the calculator for a precise comparison.

Methodology and sources

Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:

  • Bolt pattern / PCD
  • Center bore direction (donor wheel bore must not be smaller than the hub)
  • Wheel diameter, width, and offset against known OEM ranges
  • Lug thread / hardware differences (vehicle-side hardware)

A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.

Nick Marchenko

Automotive Expert