2014 Audi A6 Wheel Interchange

2014 Audi A6 Wheel Fitment Guide and Interchange

Known OEM Fitment For 2014 Audi A6

The values below reflect known factory data for the 2014 Audi A6. Some items can vary by trim, package, brake size, and market. If a spec is not listed or appears to conflict, confirm it on your tire-pressure door placard, owner’s manual, or by using the on-page calculator comparison with your exact tire and wheel sizes.

Note: The presence of both a 19-inch wheel spec and an 18-inch tire spec suggests multiple OEM configurations in 2014. Always confirm your exact trim’s original size on the door placard and in the owner’s manual. Use the calculator to compare any donor wheel/tire to your vehicle before purchase.

How To Use The Wheel Interchange Calculator

• Choose “Wheels from (donor vehicle)” and enter that vehicle’s wheel and tire specs. If you only know the wheel, set a custom tire to match the donor rim diameter.
• Choose “Installed on (your vehicle)” as 2014 Audi A6. Enter your current tire size from the door placard or your existing tire sidewall.
• Use “Custom wheel size” to test different rim diameter, width, and offset. The tool updates track change, inner/outer clearance, poke, and backspacing.
• Use “Custom tire size” to maintain overall tire diameter. Adjust section width and aspect ratio as you change rim diameter. The calculator shows rolling diameter and speedometer impact.
• Aim to keep overall tire diameter close to your OEM setup and ensure inner clearance to strut/suspension and outer clearance to fender/liner are safe. Visually review the comparison and note any warnings.
• When results are close, test-fit a wheel if possible. Brake caliper clearance can vary by trim and brake package even within the same model year.

Fitment Checklist Before You Buy

• Bolt pattern: 5x112 must match exactly.
• Center bore: 66.6 mm. If the wheel’s bore is larger, use 66.6 hub-centric rings sized to the wheel’s bore. Do not use a wheel with a smaller bore than 66.6.
• Thread size: M14 x 1.5. Verify bolt length and seat type for the wheel you are installing. Do not mix ball-seat and cone-seat hardware.
• Offset and backspacing: Compare to OEM (ET45, ~6.02 in backspacing on 19x8.5). Too much positive offset risks inner rubbing; too little can push the wheel out past the fender.
• Brake clearance: Caliper shape and size vary by engine/brake package. Confirm with a physical test-fit or a template from the wheel manufacturer.
• Tire diameter: Keep overall diameter close to stock to protect ABS, AWD systems (if equipped), gearing, and speedometer accuracy.
• Load rating: Wheel and tire load indexes must meet or exceed OEM specifications shown on your door placard.
• TPMS: Check whether your 2014 A6 uses direct sensors or an indirect system. Follow OEM procedures for sensor service or relearn if needed.
• Suspension changes: Lowering springs or coilovers reduce clearance. Re-validate fitment with the calculator if the suspension is modified.
• Spacers: If used, ensure hub-centric spacers that maintain 66.6 mm and use appropriate extended hardware. Recalculate offset with spacer thickness.

Plus Sizing And Common Upgrades

Plus sizing can improve handling and aesthetics, but it must be done within safe limits. The general goal is to keep overall tire diameter very close to stock while adjusting width and aspect ratio appropriately.

• Example baseline: An OEM size observed on some trims is 245/45R18. Use this as a reference in the calculator if that matches your placard.
• Plus-1 concept: Move to a 19-inch rim and select a tire with a lower aspect ratio to keep overall diameter similar. For instance, you can compare common 19-inch performance sizes in the calculator and check inner/outer clearance against ET45.
• Plus-2 concept: Similar approach for 20-inch rims. Use the calculator to find a tire with a reduced aspect ratio and confirm speedometer variance and clearance.
• Wheel width: Many owners explore 8.5 to 9.5 inch widths. Wider wheels often need offset changes for proper inner/outer clearance. Validate with the calculator and a test-fit.
• Offset guidance: Small offset shifts can dramatically change clearance. Use the calculator to visualize poke and inner clearance changes and aim for safe fender and suspension spacing.

Important: Because OEM sizes varied in 2014, always start from your door placard size and your current wheel offset, then model any change in the calculator before purchase.

Installation Tips

• Preparation: Park on level ground, apply the parking brake, and chock the wheels.
• Break loose bolts slightly with the vehicle on the ground. Audi typically uses wheel bolts, not nuts.
• Lift at approved jack points and support the car with jack stands. Never work under a vehicle supported only by a jack.
• Clean the hub face and center bore. Remove corrosion with a wire brush. A very light film of anti-seize on the hub face (not on threads) can help prevent future sticking. Follow OEM procedures.
• Use a wheel hanger/guide pin (M14 x 1.5) to align the wheel on the hub and protect threads and calipers.
• Hand-start all bolts to avoid cross-threading. Tighten in a star pattern snugly.
• Lower the vehicle and torque bolts to the factory specification from the owner’s manual using a calibrated torque wrench.
• After 50–100 miles, recheck torque and inspect for any rubbing on liners, control arms, or fender lips.

Tools And Helpful Supplies

• 1/2 inch drive torque wrench
• M14 x 1.5 wheel hanger/guide pin
• 17 mm thin-wall socket for wheel bolts
• 66.6 mm hub-centric rings (for aftermarket wheels with larger bores)

FAQs

• What is the bolt pattern for the 2014 Audi A6?

  5x112.

• What is the center bore on the 2014 A6?

  66.6 mm. Wheels should be hub-centric to 66.6 mm or use properly sized hub-centric rings.

• What wheel size and offset are known OEM for 2014 A6?

  19x8.5 with ET45 and ~6.02 in backspacing are known on some trims. Verify your specific trim on the door placard and in the owner’s manual.

• I see 245/45R18 listed. Does that mean 18-inch wheels fit my A6?

  Some 2014 A6 trims came with 245/45R18 from the factory, but sizes vary by trim and brake package. Check your door placard and confirm brake caliper clearance before purchasing 18-inch wheels.

• What thread size and lug hardware does it use?

  M14 x 1.5 wheel bolts. Confirm the correct bolt seat type for your specific wheels; do not mix seat types.

• How do I know if a different offset will rub?

  Enter your current setup and the proposed wheel into the calculator. Review inner clearance to suspension and outer poke to fender. When possible, perform a physical test-fit.

• Do I need hub-centric rings?

  Only if your new wheel has a center bore larger than 66.6 mm. Use rings sized 66.6 mm (hub) to your wheel’s bore (wheel side). Never force a smaller-bore wheel onto the hub.

• Will I need to reprogram TPMS?

  Systems vary. Check your owner’s manual/MMI. If your car uses direct sensors, service or transfer them as required and follow the relearn procedure. If indirect, you may need to reset the system in the menu after setting tire pressures.

• What torque should I use on the wheel bolts?

  Use the factory torque from the owner’s manual or service information for your exact trim. Do not guess; torque values are safety-critical.

Use the calculator on wheelinterchange.com to compare any donor wheel to your 2014 Audi A6 and confirm all clearances, tire diameter, and offset changes before you buy.