2025 Audi A4 Tire Size Factory tire sizes, bolt pattern & tire pressure
Tire Sizes
245/40R18, 245/35R19
Bolt Pattern
5x112
Offset
35-45
Tire Pressure
35/38 PSI
Tire Sizes by Trim
| Trim | Tire Size | Bolt Pattern | Pressure (F/R) |
|---|---|---|---|
| Premium 40 TFSI | 245/40R18 | 5x112 | 35/38 PSI |
| Premium Plus 45 TFSI quattro | 245/40R18 | 5x112 | 35/38 PSI |
| Prestige 45 TFSI quattro | 245/35R19 | 5x112 | 35/38 PSI |
Alternative Tire Sizes
These sizes are within 3% diameter of the factory 245/40R18 and may fit the 2025 Audi A4.
225/55R16 Safe
0.1% · -20mm · -2" rim 245/45R17 Safe
0.1% · same width · -1" rim 245/35R19 Safe
0.1% · same width · +1" rim 225/50R17 Safe
0.6% · -20mm · -1" rim 225/45R18 Safe
1.0% · -20mm · same rim 255/30R20 Safe
1.2% · +10mm · +2" rim 255/35R19 Safe
1.2% · +10mm · +1" rim 235/40R18 Safe
1.2% · -10mm · same rim
Related Comparisons
225/45R17 vs 245/40R18 Performance upgrade wider + bigger rim 225/40R18 vs 245/35R19 Performance plus-one upgrade 235/45R18 vs 245/40R18 Wider, lower-profile swap 245/40R18 vs 255/40R19 Performance car upgrade path 225/40R18 vs 245/40R18 Width upgrade on 18-inch 245/40R18 vs 245/45R18 Profile height comparison 245/35R19 vs 255/35R19 Performance width upgrade 235/35R19 vs 245/35R19 Ultra-low profile width upgrade
Tire Maintenance Tips for the Audi A4
Proper tire maintenance extends tire life and keeps your 2025 Audi A4 safe on the road. Follow these guidelines from NHTSA:
- Check tire pressure monthly — the Audi A4 requires 35/38 PSI (front/rear). Check when tires are cold, before driving.
- Rotate tires every 5,000–7,500 miles — this ensures even wear across all four tires, especially important for vehicles with staggered setups.
- Inspect tread depth regularly — the legal minimum is 2/32", but most experts recommend replacing tires at 4/32" for adequate wet traction.
- Check the DOT date code — tires older than 6 years should be inspected by a professional, regardless of tread depth. The 4-digit DOT code on the sidewall shows the week and year of manufacture.
Choosing Alternative Tires
When replacing tires on your 2025 Audi A4, stay within 3% of the factory tire's overall diameter to avoid affecting your speedometer accuracy, ABS calibration, and traction control. The factory bolt pattern (5x112) and offset (35-45) must also match.
Always verify any alternative size with a qualified tire professional before purchase. For more information on tire safety, see the NHTSA Tire Ratings Search.