Audi Q8 e-tron tyres
The Audi Q8 e-tron leaves the factory on 255/50 R20 and 255/55 R19 and 265/40 R22 and 265/45 R21 and 285/40 R21 and 285/45 R20 depending on wheel size, and the 255/55 R19 111H XL below is the one most owners are replacing. XL is not optional here; it is what the car was type approved on. The Xpeng G9 takes the same size.
Every fitment
| Generation | Trim | Wheel | Tyre size | Load index | Speed | Construction | Marking | Pressure |
|---|---|---|---|---|---|---|---|---|
| Current | 50 and 55 (19in) | 19in | 255/55 R19 | 111 | H | XL | none | see plate |
| Current | 50, 55 and SQ8 (20in) | 20in | 255/50 R20 | 109 | H | XL | none | see plate |
| Current | 50 and 55 (21in) | 21in | 265/45 R21 | 108 | H | XL | none | see plate |
| Current | 50 and 55 (22in) | 22in | 265/40 R22 | 106 | H | XL | none | see plate |
| Current | S and SQ8, wide body (20in) | 20in | 285/45 R20 | 112 | H | XL | none | see plate |
| Current | S and SQ8, wide body (21in) | 21in | 285/40 R21 | 109 | H | XL | none | see plate |
Your own placard is the authority. You will find it on the on the driver's door jamb, on the B-pillar. Where it disagrees with this page, it wins. Match or exceed the size, load index, speed rating and construction class it gives, and use its pressure figure rather than anything printed on the tyre.
What changes on this car
Sold as the e-tron from 2019 and renamed Q8 e-tron for the 2024 model year, it kept the same tyre sizes through the change. Every fitment is square, XL and H-rated, so tyres can be rotated front to rear on all versions.
The S and SQ8 have wider arches and can run a 285 section, 285/45 R20 or 285/40 R21, where the standard body uses 255 or 265. Audi USA quotes 6,118 lb for the 2024 SQ8 against 5,798 lb for the Q8.
Load capacity falls as the wheel grows on the standard body: the 19in 255/55 is rated 1,090 kg per tyre (index 111) and the 22in 265/40 only 950 kg (index 106), with about 106 mm of sidewall.
The wide-body 20in, 285/45 R20 112H, is the highest-rated tyre on the car at 1,120 kg.
No tyres listed against this fitment yet. Product specifications are published from each manufacturer's own data and that work is not finished for 255/55 R19. Match or exceed every figure in the table above and you cannot go far wrong.
Where these figures come from
- Audi of America 2024 Q8 e-tron technical specifications (255/50 R20 109H XL standard; 265/45 R21 108H XL optional; 255/55 R19 111H XL; 265/40 R22 106H XL): https://media.audiusa.com/assets/documents/original/10700-2024Q8etronTechnicalSpecsFINAL0330231.pdf
- Audi of America 2024 SQ8 e-tron technical specifications (255/50 R20 109H XL standard): https://media.audiusa.com/assets/documents/original/11769-2024SQ8etrontechspecs.pdf
- Michelin US vehicle fitment tool (2024 q8-e-tron-sportback premium; 255/55 R19 111H XL): https://www.michelinman.com/auto/browse-tires/by-vehicle/2024/audi/q8-e-tron-sportback/premium/255---55R19---XL-111H
- Michelin US vehicle fitment tool (2019 e-tron-quattro premium-plus; 255/55 R19 111H XL): https://www.michelinman.com/auto/browse-tires/by-vehicle/2019/audi/e-tron-quattro/premium-plus/255---55R19---XL-111H
- Michelin UK vehicle fitment tool (2026 q8-e-tron 50-e-tron-340-250-kw; 255/55 R19 111H): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/audi/q8/q8-e-tron/2026/50-e-tron-340-250-kw/255---55-R-19-111H
- Michelin US vehicle fitment tool (2024 q8-e-tron-sportback premium-plus; 255/50 R20 109H XL): https://www.michelinman.com/auto/browse-tires/by-vehicle/2024/audi/q8-e-tron-sportback/premium-plus/255---50R20---XL-109H
- Michelin UK vehicle fitment tool (2026 q8-e-tron 50-e-tron-340-250-kw; 255/50 R20 109H): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/audi/q8/q8-e-tron/2026/50-e-tron-340-250-kw/255---50-R-20-109H
- Michelin US vehicle fitment tool (2024 q8-e-tron-sportback premium-plus; 265/45 R21 108H XL): https://www.michelinman.com/auto/browse-tires/by-vehicle/2024/audi/q8-e-tron-sportback/premium-plus/265---45R21---XL-108H
- Michelin UK vehicle fitment tool (2026 q8-e-tron 50-e-tron-340-250-kw; 265/45 R21 108H): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/audi/q8/q8-e-tron/2026/50-e-tron-340-250-kw/265---45-R-21-108H
- Michelin US vehicle fitment tool (2024 q8-e-tron-sportback launch-edition; 265/40 R22 106H XL): https://www.michelinman.com/auto/browse-tires/by-vehicle/2024/audi/q8-e-tron-sportback/launch-edition/265---40R22---XL-106H
- Michelin UK vehicle fitment tool (2026 q8-e-tron 50-e-tron-340-250-kw; 265/40 R22 106H): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/audi/q8/q8-e-tron/2026/50-e-tron-340-250-kw/265---40-R-22-106H
- Michelin UK vehicle fitment tool (2026 sq8-e-tron ev-500-370-kw; 285/45 R20 112H): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/audi/q8/sq8-e-tron/2026/ev-500-370-kw/285---45-R-20-112H
- Michelin UK vehicle fitment tool (2026 e-tron-s ev-503-370-kw; 285/45 R20 112H): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/audi/e-tron/e-tron-s/2026/ev-503-370-kw/285---45-R-20-112H
- Michelin US vehicle fitment tool (2022 e-tron-s-sportback premium-plus; 285/40 R21 109H XL): https://www.michelinman.com/auto/browse-tires/by-vehicle/2022/audi/e-tron-s-sportback/premium-plus/285---40R21---XL-109H
- Michelin UK vehicle fitment tool (2026 sq8-e-tron ev-500-370-kw; 285/40 R21 109H): https://www.michelin.co.uk/auto/browse-tyres/by-vehicle/audi/q8/sq8-e-tron/2026/ev-500-370-kw/285---40-R-21-109H
Including the manufacturer's own published figure. Neither source is standing next to your vehicle, which is why the placard still wins.
Other cars on the same size
Common questions
- What size tyres does the Audi Q8 e-tron take?
- It runs 255/50 R20 and 255/55 R19 and 265/40 R22 and 265/45 R21 and 285/40 R21 and 285/45 R20. The exact fitment for your car is on On the driver's door jamb, on the B-pillar.
- Can I fit a cheaper tyre to a Audi Q8 e-tron?
- Only at 255/55 R19 111H XL or better. That is the figure to hold: a tyre below the load index, the speed rating or the construction class is not a cheaper one, it is the wrong one.