2016 Audi A7 Wheel Interchange
Goal
Confirm safe wheel and tire fitment for a 2016 Audi A7 using available OEM data and the on-page calculator.
This guide helps you avoid clearance, braking, and fastening problems before you buy or mount wheels.
Prerequisites
Known OEM fitment for 2016 Audi A7 (use these values; do not assume others):
| Item | Value |
|---|---|
| Bolt pattern (studs x PCD) | 5x112 |
| Center bore (mm) | 66.6 |
| Thread size | M14 x 1.5 |
| Rim diameter (in) | 19 |
| Rim width (in) | 8.5 |
| Wheel offset (ET, mm) | 32 |
| Backspacing (in) | 5.51 |
| Tire size | 255/40R19 |
Assumption: some trims and aftermarket wheels may differ. If a value is unknown or varies by trim, confirm with the calculator and OEM sources.
Tools and parts recommended: torque wrench, lug socket set, hub-centric rings if required, and a tape measure.
Quick tool links: torque wrench, hub-centric rings
Step by step
1) Define the problem
You need wheels that physically fit and do not create rubbing, vibration, or unsafe fastening conditions.
2) Start with bolt pattern and thread
Confirm the wheel is 5x112 and studs are M14 x 1.5. These must match exactly.
If you have aftermarket lug nuts, verify seat type matches the wheel (conical, ball, or flat).
3) Check center bore
The OEM center bore is 66.6 mm. If an aftermarket wheel center bore is larger, use hub-centric rings to remove play.
If the wheel bore is smaller than the hub bore, the wheel will not mount and cannot be installed.
4) Verify rim diameter, width, and offset
OEM rim is 19x8.5 ET32 with backspacing 5.51 in. Keep rim width and offset close to OEM to reduce clearance issues.
Trade-off: lower offset moves the wheel outward, improving stance but increasing rub risk. Higher offset moves wheel inward, possibly causing inner clearance issues.
5) Confirm tire size and overall diameter
OEM tires are 255/40R19. Use the on-page calculator to compare alternative sizes and to see diameter change when you adjust rim diameter.
6) Use the calculator
Compare "Wheels from (donor vehicle)" vs "Installed on (your vehicle)". Adjust custom wheel and tire fields to preview fitment changes.
Changing rim diameter updates tire diameter automatically. Use the calculator for rim width, offset, and tire section trade-offs.
7) Physical test fit
Mount the wheel and torque lug nuts to the OEM spec. If you do not know the torque, obtain it from the owner's manual or dealer.
Check braking system clearance, suspension components, and full-lock turning for rub. Measure wheel-to-fender distance front and rear.
Validation
Do these checks after mounting and before a high-speed test drive:
- Wheel runs true with no visible wobble or vibration at low speed.
- No contact at full lock during suspension compression cycles.
- Lug nuts seat flush and torque values are confirmed from OEM sources.
- TPMS fits and communicates if the vehicle uses sensors. Confirm sensor type and compatibility.
- Centering is correct; use hub-centric rings if there is lateral play between hub and wheel bore.
Use the calculator results to cross-check wheel diameter and scrub radius changes. If numbers differ from physical measurements, re-measure and reconcile discrepancies.
Troubleshooting
Rubbing on fender or inner well
Cause: offset too low or wheel too wide. Solution: increase offset, choose narrower wheel, or fit a small spacer after confirming brake clearance and stud length.
Brake caliper interference
Cause: wheel inner lip too close to caliper. Solution: select a wheel with sufficient inner clearance or adjust wheel width/offset.
Vibration after mounting
Cause: wheel not hub-centric, unbalanced tire, or damaged wheel. Solution: install hub-centric rings if applicable, rebalance, and inspect wheel for damage.
Lug nut seat mismatch or stripped threads
Cause: wrong seat type or cross-threading. Solution: replace lug nuts with correct seat style and inspect thread condition. Confirm M14 x 1.5 thread engagement depth.
Unknown OEM values or trim variations
If specs vary by trim, confirm with the owner’s manual, dealer, or the VIN-specific parts catalog. Use the on-page calculator for trial fits until OEM data is verified.
Wrap up
Follow this sequence to move from confusion to a confident fitment decision. Start with bolt pattern, thread, and center bore. Then validate rim width, offset, and tire diameter using the on-page calculator and physical test fit.
When in doubt, confirm torque values and trim-specific specs from OEM sources. That validation step reduces risk and preserves safety.
Use recommended tools, balance tires, and perform a careful test drive. If you need help interpreting calculator outputs, contact a trusted wheel installer or the dealer for VIN-specific confirmation.
Wheel interchange calculator
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