Audi A4 Quattro Wheel Fitment Guide (2017-2022)
The B9 Audi A4 Quattro is one of those cars that looks good stock and looks even better with the right wheels bolted on. Those factory 17x7.5 +38 rollers do the job, but they leave a ton of potential sitting in the fender wells. With a clean 5x112mm bolt pattern, a 66.5mm center bore, and that planted Quattro stance, the A4 is practically begging for a proper wheel setup.
What makes this platform so friendly for fitment is how forgiving the body lines are — the A4 wears a wide range of diameters and widths without looking forced. Step up to an 18 or 19-inch wheel and the whole car tightens up, filling those arches and giving it the aggressive-yet-refined look Audi always hints at but never fully commits to from the factory.
We've pulled together six square setups that we think nail the A4's proportions — same wheel and tire on all four corners for balanced handling, even tire wear, and a clean, symmetrical look. Every build below is a ThreePiece.us curated example, so you can see exactly what specs deliver the stance you're after before you commit.
Quick links
- Want new wheels for your Audi A4 Quattro?
- Basic A4 Quattro fitment info
- 18-Inch Square Setup
- 19-Inch Square Setups
- 20-Inch Square Setups
- Final Thoughts
Want new wheels for your Audi A4 Quattro?
Your B9 A4 Quattro rolls off the lot on 17x7.5 +38 wheels — fine for winter duty, but a size that leaves plenty of arch to fill. The good news: that 5x112mm bolt pattern opens up one of the deepest fitment catalogs out there, so you're not hunting for oddball drilling. Everything from OEM-style Audi pieces to serious enthusiast metal bolts right up.
Stepping up to 18, 19, or 20-inch diameters is where the A4 really wakes up. We've got clean flow-form and forged options across the board — Enkei and Niche for a lighter, daily-friendly setup, plus Rotiform, Weds, and Weds Sports when you want something that turns heads in the paddock.
Every setup we're featuring here is square — same wheel and tire on all four corners — so it's a straightforward, balanced fitment that keeps the Quattro drivetrain happy. Pick your diameter and let's build it right.
Basic A4 Quattro fitment info
- Bolt pattern: 5x112mm
- Bolt thread: M14 x 1.5
- Center bore: 66.5mm
The stock A4 Quattro rolls on 17x7.5 +38 wheels wrapped in 225/50R17 tires.
Brake clearance
Good news for the B9 A4: the brakes are modest. Quattro trims (Premium, Premium Plus, Prestige) run 338mm front rotors on four-piston calipers with 330mm rears — no Brembo option and no big-brake trim on the A4 itself. The base "40" cars get 314mm fronts, while the "45" quattro moves up to the 338mm setup.
That means clearance is a non-issue on most builds. Your factory 17x7.5 clears everything, and any 18" or 19" wheel walks right over these calipers with room to spare. You're not fighting six-piston monsters here — spoke design and barrel profile matter far less than they do on an S4.
If you add an aftermarket big brake kit, that changes the math: many require a 19" or larger wheel, with some 18s only clearing at aggressive offsets like ET25 or lower. Confirm your specific kit's requirement before ordering.
18-Inch Square Setup
Square 18s are the sweet spot for a daily-driven B8 A4 Quattro, and this setup keeps it clean with an Enkei in 18x8.5 at all four corners. Simple, balanced, and no guesswork on rotation down the road.
| Fitment Facts | ||
| Front | Rear | |
| Wheels | Enkei GTC01RR 18x8.5 +35 | Enkei GTC01RR 18x8.5 +35 |
| Tires | 255/40/18 | 255/40/18 |
| Notes | Stock | |
There's something clean about a square setup done right, and this A4 nails it. The Enkei GTC01RR 18x8.5 +35 at all four corners gives this Quattro a balanced, motorsport-inspired stance that suits the chassis perfectly. Lightweight and purposeful, these wheels look right at home on an Audi.
Wrapped in 255/40/18 rubber on all four, the fitment stays tidy and functional. On stock suspension, it's a mature, track-minded look that doesn't try too hard — just honest, even proportions front to back.
19-Inch Square Setups
Both of these 19-inch square builds run Weds Sports and Weds in a 19x8 wrapped around all four corners — same face front and rear, which keeps the A4's proportions clean and simple. It's the no-nonsense route if you want a cohesive look without juggling different specs per axle.
| Fitment Facts | ||
| Front | Rear | |
| Wheels | Weds Sports SA55M 19x8 +42 | Weds Sports SA55M 19x8 +42 |
| Tires | 245/35/19 | 245/35/19 |
| Notes | Emmanuelle Design Springs | |
There's something clean about a squared setup on an A4, and this one nails it. Running the Weds Sports SA55M 19x8 +42 on all four corners gives the Quattro a balanced, purposeful look — no gimmicks, just proper Japanese mesh doing the talking.
The 245/35/19 wrapped around each wheel keeps the sidewall tight and the profile sharp, and the Emmanuelle Design springs pull the whole car down to sit exactly where it should. Understated and done right.
| Fitment Facts | ||
| Front | Rear | |
| Wheels | Weds Sa55m 19x8 +42 | Weds Sa55m 19x8 +42 |
| Tires | 245/35/19 | 245/35/19 |
| Notes | Emmanuele design springs | |
Clean and correct — this A4 wears the Weds Sa55m 19x8 +42 at all four corners, and the +42 keeps everything tucked tidy inside the arches. It's the kind of square setup that just looks right, no drama, no showboating.
Wrapped in 245/35/19 rubber with Emmanuele design springs bringing the body down, the A4 sits with that low, planted OEM-plus attitude. Understated, factory-clean, and exactly the vibe an Audi like this should have.
20-Inch Square Setups
Running the same wheel at all four corners keeps your A4 Quattro balanced and makes tire rotations painless — and these three picks prove square doesn't mean boring. We've curated builds spanning a beefy 20x10, a clean 20x8.5, and a versatile 20x9 across Niche, Rotiform, and Audi.
| Fitment Facts | ||
| Front | Rear | |
| Wheels | Niche Essen 20x10 +40 | Niche Essen 20x10 +40 |
| Tires | 265/30/20 | 265/30/20 |
| Notes | Stock | |
Clean and purposeful — the Niche Essen 20x10 +40 squared up on all four corners gives this A4 Quattro a balanced, planted look that suits the sedan's lines. No mismatched footprint, just consistent presence corner to corner.
The 265/30/20 wrap keeps the sidewall tight and lets the 20x10 face do the talking. On stock suspension, it's a straightforward, well-proportioned setup that reads sharp without overcomplicating things.
| Fitment Facts | ||
| Front | Rear | |
| Wheels | Rotiform LAS-R 20x8.5 +35 | Rotiform LAS-R 20x8.5 +35 |
| Tires | 255/30/20 | 255/30/20 |
| Notes | Stock | |
Clean and purposeful — the Rotiform LAS-R 20x8.5 +35 squared off at all four corners gives this A4 Quattro a tidy, balanced footprint that suits the car's understated lines. The mesh face brings just enough attitude without shouting.
Wrapped in 255/30/20 on all four, the sidewall stays lean and the 20-inch diameter fills things out nicely over stock suspension. Consistent front to back, and it works.
| Fitment Facts | ||
| Front | Rear | |
| Wheels | Audi A8 20x9 +46 | Audi A8 20x9 +46 |
| Tires | 245/30/20 | 245/30/20 |
| Notes | KW V3 coilovers | |
There's something clean about running the factory Audi A8 20x9 +46 across all four corners — an OEM-plus move that keeps this A4 looking sharp without shouting. The square setup gives it a balanced, purposeful footprint that just works on the sedan lines.
Wrapped in 245/30/20 rubber and dropped onto KW V3 coilovers, the stance tightens up nicely. The V3s let you dial the ride height exactly where you want it, and paired with that +46 offset the whole thing sits tucked and tidy.
Final Thoughts on Audi A4 Quattro Fitment
Six square setups, three diameters, and one clear takeaway: the B9 A4 Quattro doesn't need anything wild to look right. Everything featured here lives in the +35 to +46 window on the 5x112mm pattern, which keeps the wheel face sitting naturally in the arch without fighting the factory bodywork. If you're chasing simplicity, the square approach on all four corners is the easy button — one wheel, one tire, no guesswork balancing front and rear.
For most people, 19x8 is the sweet spot — it's the most common size across these builds for good reason. It fills the wheel well cleanly, gives you plenty of tire options, and photographs great without changing the car's daily-driver manners. Want a little more sidewall and a softer ride? The 18" setups keep things comfortable. Chasing the biggest visual footprint? The 20" builds bring the drama while staying in that same conservative offset range. All of them work because they play it straight with the A4's geometry.
Pick the diameter that matches how you actually use the car, stay inside the offsets shown here, and you'll land a fitment that looks intentional. ThreePiece.us carries the brands featured in this guide, so once you've settled on a size, we can get you sorted with wheels and the right meat to match.