2018 Audi S4 Custom Alloy Wheels & Aftermarket Rims Guide
Showing compatible wheels for the 2018 Audi S4 (3.0 TFSi quattro) matching 5x112 bolt pattern, 18, and 19 inch diameters, and 7.5"–8.5" widths from Lexani, Savini, TSW, ESR Wheels. Filter by rim size, width, or finish and build a complete wheel & tire package.
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2018 Audi S4 Wheel Fitment Specs: 18"–19" Rim Sizes, 7.5"–8.5" Widths & 5×112 PCD
Every aftermarket wheel shown above is pre-filtered for the 2018 Audi S4 (B9 Facelift). By matching your 2018 Audi S4 lug pattern (5×112), compatible rim diameters (18, and 19 inch), and 7.5", 8", 8.5" widths against inventory from Lexani, Savini, TSW, ESR Wheels, Niche 1PC, Azara, you can choose custom rims with confidence or build a complete 2018 Audi S4 wheel and tire package.
| Specification | Verified Fitment Details |
|---|---|
| Vehicle & Year | 2018 Audi S4 (B9 Facelift) |
| Trims Covered | 3.0 TFSi quattro |
| Bolt Pattern (PCD) | 5×112 |
| Supported Diameters | 18", 19" |
| Supported Widths | 7.5", 8", 8.5" |
| Center Bore | 66.5 mm |
| Offset (ET) Range | ET39–ET40 |
| Verified Tire Sizes | 245/40R18 97H, 255/35ZR19 96Y, 225/45R18 95H |
| Compatible Brands | Lexani, Savini, TSW, ESR Wheels, Niche 1PC, Azara |
2018 Audi S4 Rim Sizes & Wheel Construction Guide
Popular wheel fitments include 18 inch wheels for 2018 Audi S4, 19 inch wheels for 2018 Audi S4 matched to 7.5"–8.5" widths and 5×112 bolt patterns. You can safely run cast alloy, flow-formed, or forged custom wheels from brands such as Lexani, Savini, TSW, ESR Wheels, Niche 1PC, Azara whenever bolt pattern, center bore, offset, and load rating align. When stepping up in diameter on AWD drivetrains, keep overall tire rolling diameter matched front-to-rear.
2018 Audi S4 Wheel & Fitment FAQs
What is the exact wheel bolt pattern, hub bore, and lug specification for the 2018 Audi S4?
The 2018 Audi S4 is engineered with a 5×112 bolt pattern and a 66.5 mm center bore and accommodates wheel diameters of 18"–19" with rim widths of 7.5"–8.5". Installing hub-centric wheels guarantees zero highway vibrations.
Do different 2018 Audi S4 trims share the same wheel size and brake clearance?
Across 2018 Audi S4 trims (3.0 TFSi quattro), compatible wheels span 18"–19" in diameter and 7.5"–8.5" wide with offsets around ET39–ET40 (5×112 bolt pattern). Higher trims equipped with upgraded sport brakes require larger wheel diameters to clear the calipers.
What precautions are needed when changing wheel sizes on an AWD 2018 Audi S4?
On the AWD 2018 Audi S4, all four tires must maintain matching overall rolling diameters within 1% across 18"–19" wheel sizes (5×112 PCD) to prevent strain on the center differential.
What factory and plus-sized tire sizes fit the 2018 Audi S4?
Recorded compatible tire sizes for the 2018 Audi S4 include 245/40R18 97H, 255/35ZR19 96Y, 225/45R18 95H on 18"–19" wheels. When building a package, our fitment engine confirms exact tire aspect ratios for your selected rim width.