2021 Audi Q8 Tire Pressure
Recommended Tire Pressure (Cold)
Always check on cold tires (parked 3+ hours). Verify on driver-side door jamb sticker.
All data is for informational purposes only. Always refer to your vehicle's owner's manual for the correct tire pressure.
Tire Pressure by Tire Size
| Tire Size | Front PSI | Rear PSI |
|---|---|---|
| 285/45R21 | 35 | 38 |
Frequently Asked Questions
What is the recommended tire pressure for a 2021 Audi Q8?
The recommended cold tire pressure for the 2021 Audi Q8 is 33 PSI for all four tires. Always check when tires are cold (parked at least 3 hours).
What tire size does the 2021 Audi Q8 use?
The 2021 Audi Q8 uses tire sizes 265/55R19, 285/45R21. The exact size depends on your trim level — check the sticker on your driver-side door jamb for your specific vehicle's tire size.
How do I check tire pressure on a 2021 Audi Q8?
Check each tire with a pressure gauge when cold. Remove the valve cap, press the gauge firmly onto the valve stem, and read the PSI. Compare to the recommended 33 PSI. Inflate or deflate as needed. For the most accurate reading, the vehicle should be parked for at least 3 hours.
What PSI should my spare tire be on a 2021 Audi Q8?
The compact spare tire (donut) for the 2021 Audi Q8 should be inflated to 60 PSI. Check your spare every few months — it can lose air while sitting unused in the trunk. Compact spares are for temporary use only (max 50 mph, up to 50 miles).
Does tire pressure change with temperature?
Yes. For every 10°F drop in outside temperature, your tire pressure drops about 1 PSI. This is why TPMS warning lights often come on during the first cold snap of autumn. The opposite is also true — tire pressure increases about 1 PSI per 10°F temperature rise. Always inflate to the recommended 33 PSI when tires are cold.
Need a reliable tire pressure gauge? See our guide to the best tire pressure gauges →