2019 Audi A6 Wheel Interchange

2019 Audi A6 Wheel Fitment Guide | wheelinterchange.com

Known OEM Fitment For 2019 Audi A6

The data below reflects values that are confirmed for at least one 2019 Audi A6 configuration. Other trims and option packages may differ. If a value is missing from your specific car or seems inconsistent, verify against your owner’s manual, the wheel center cap sticker, door jamb tire placard, or your Audi dealer. You can also use the on-page calculator to compare sizes across trims.

Note on mixed data: The wheel size 17x7.5 ET36 and the tire size 245/45R19 are from different factory configurations. Many 2019 A6 models were offered with multiple OEM wheel packages. Use the calculator to align wheel and tire sizes as a matched set for your trim, and confirm against OEM sources listed above.

How To Use The Wheel Interchange Calculator

• Select Wheels from (donor vehicle): Enter the wheel and tire setup you want to try. This can be another A6 trim or an aftermarket size.
• Select Installed on (your vehicle): Set to 2019 Audi A6 and input your current wheel and tire sizes from your door placard or owner’s manual.
• Custom wheel size: Adjust rim diameter, width, and offset to test aftermarket options. The tool will recalculate inner and outer clearance.
• Custom tire size: Adjust section width and aspect ratio. When rim diameter changes, the calculator updates tire diameter for an apples-to-apples comparison.
• Review key outputs:
  • Inner clearance: Distance to strut, spring, and wheel well. Avoid reducing inner clearance to the point of contact.
  • Outer poke: How far the wheel extends toward the fender. Ensure it does not exceed the fender line or contact liners under compression or steering.
  • Overall tire diameter: Keep within about 2 to 3 percent of your OEM diameter to protect ABS, speedometer accuracy, and transmission shift logic.
• Finalize: Cross-check bolt pattern 5x112, center bore 66.6 mm, and thread size M14 x 1.5. If a size appears borderline, inspect the car physically before buying.

Fitment Checklist Before You Buy

• Bolt pattern: Must be 5x112.
• Center bore: OEM is 66.6 mm. Aftermarket wheels with larger bores require hub-centric rings with a 66.6 mm inner diameter.
• Thread size: M14 x 1.5 wheel bolts. Confirm head seat type with the wheel manufacturer before purchasing bolts. Seat style can vary by wheel.
• Offset and width: The known example is 17x7.5 ET36. Other trims differ. Use the calculator to verify inner clearance and outer poke on your A6.
• Overall tire diameter: Keep new tire diameter close to your OEM trim’s diameter. Use the door placard as your baseline.
• Brake clearance: Inspect spoke-to-caliper clearance and barrel-to-caliper clearance. Do not assume all A6 brakes are the same across trims.
• Fender and liner clearance: Check at full lock, full bump, and with passengers or cargo.
• TPMS: The TPMS system and reset method can vary by market. Confirm in the owner’s manual.
• Load index and speed rating: Equal or higher than OEM placard values.
• Spacers: If used, confirm hub-centric design, proper lip engagement, and longer wheel bolts with adequate thread engagement. Recalculate effective offset in the tool.

Plus Sizing And Common Upgrades

Many owners consider plus-one or plus-two setups for appearance and handling. Because 2019 Audi A6 trims shipped with multiple OEM wheel packages, do not assume a specific upgrade size for your car. Use these steps:

• Identify your OEM baseline from the door placard and manual.
• In the calculator, increase rim diameter in 1 inch steps and reduce tire aspect ratio to maintain overall diameter within about 2 to 3 percent of OEM.
• Adjust wheel width and offset while monitoring inner clearance and outer poke to avoid suspension or fender contact.
• If selecting aftermarket wheels with a larger center bore, plan for 66.6 mm hub-centric rings. If changing offset significantly, evaluate steering feel and bearing load.

If you are uncertain which packages your specific A6 has, call your Audi dealer with your VIN or check the build sheet. Then mirror those OEM diameters and offsets in the calculator for reliable results.

Installation Tips

• Work on a flat surface, chock wheels, and use jack stands. Never rely on a jack alone.
• Audi typically uses wheel bolts rather than studs. A wheel hanger/guide pin for M14 x 1.5 threads simplifies mounting.
• Clean the hub face and the wheel mounting pad. Remove corrosion and old anti-seize. Lightly brush the center bore. A very thin film of high-temp anti-seize on the hub pilot can help prevent sticking, but keep it off bolt seats and threads unless the manufacturer specifies otherwise.
• Install bolts by hand to avoid cross-threading. Tighten in a star pattern.
• Torque spec can vary by model and market. Check your owner’s manual or Audi service information and use a calibrated torque wrench. Recheck torque after 50 to 100 miles.
• After installation, turn the steering lock-to-lock and check for any rubbing. Road test over bumps and recheck clearances.

Tools And Helpful Supplies

• 1/2 inch drive torque wrench: Search on Amazon
• Wheel hanger guide pin M14 x 1.5: Search on Amazon
• Hub-centric rings 66.6 mm ID: Search on Amazon
• Digital tire pressure gauge: Search on Amazon

Also useful: floor jack and stands, breaker bar, wire brush, anti-seize, torque stick set for impact gun usage, and a tread depth gauge.

FAQs

• What is the bolt pattern on the 2019 Audi A6?

  5x112.

• What center bore do I need?

  66.6 mm. If your aftermarket wheel has a larger bore, use hub-centric rings with a 66.6 mm inner diameter to ensure a vibration-free fit.

• What is the thread size for the wheel fasteners?

  M14 x 1.5. Confirm the correct seat type for your wheels before buying new bolts.

• What OEM wheel and tire sizes came on the 2019 A6?

  Multiple packages existed. Verified examples include a 17x7.5 wheel with ET36 and a separate OEM tire listing of 245/45R19 for another configuration. Check your door placard and use the calculator to match wheel and tire sizes correctly for your trim.

• Can I run 245/45R19 on my A6?

  245/45R19 appears as an OEM size on some 2019 A6 configurations. Confirm it matches your trim’s wheel package or use the calculator to compare its overall diameter and clearance against your current setup, then verify with OEM documentation.

• What offset should I choose for aftermarket wheels?

  The known OEM example is ET36 for a 17x7.5 wheel. Other trims differ. Use the calculator to model inner and outer clearance on your car, and confirm visually before purchase.

• Do I need hub-centric rings?

  Use them if your aftermarket wheels have a center bore larger than 66.6 mm. Choose rings with a 66.6 mm inner diameter and the outer diameter that matches your wheel’s center bore.

• What is the wheel bolt torque spec?

  Torque specifications can vary. Do not guess. Check the owner’s manual or Audi service information and torque with a calibrated wrench. Re-torque after 50 to 100 miles.

• Will spacers work on the 2019 A6?

  They can, but you must use quality hub-centric spacers and the correct longer M14 x 1.5 bolts to maintain proper thread engagement. Recalculate effective offset in the tool and verify fender and brake clearance.

• How close should I keep the new tire diameter to stock?

  Aim to stay within about 2 to 3 percent of your trim’s OEM diameter to preserve speedometer accuracy and driver-assist system behavior.