18-inch Wheels
Audi A4 — 18-inch Wheels Tire Pressure
For 18-inch wheels use on the Audi A4, set cold pressures to 38 PSI front and 38 PSI rear.
18-inch Wheels cold pressure
Front
38
262 kPa
Rear
38
262 kPa
OEM spec
38/38 PSI
Tire size
245/45R17
Curb weight
1,545 kg
Category
sedan
18-inch is common OEM sizing — use factory pressures unless otherwise specified on the door sticker.
Community-tuned pressures based on OEM spec + typical use-case deltas. Always verify against your door-jamb sticker for your exact trim and load rating. Minimum safe pressure is 24 PSI for most passenger tires.
Other setups for this A4
FAQ
Frequently asked
- What tire pressure should I use for 18" driving in the Audi A4?
- For 18-inch wheels use on the Audi A4, set cold pressures to 38 PSI front and 38 PSI rear. 18-inch is common OEM sizing — use factory pressures unless otherwise specified on the door sticker.
- What is the OEM tire pressure for the Audi A4?
- The factory cold pressure spec for the 2017–2024 Audi A4 is 38 PSI front / 38 PSI rear. Always use the door-jamb sticker for your specific trim.
- Is switching to 18-inch wheels safe on the Audi A4?
- Wheel size changes are fine as long as the overall tire diameter stays within ±3% of the OEM 245/45R17. Pressures typically stay close to OEM; the 38/38 setting above accounts for the small sidewall change.
- What is 38 PSI in bar or kPa?
- 38 PSI = 2.6 bar = 262 kPa. The rear 38 PSI = 2.6 bar.
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