What is the tire size for the Audi Q5?
2 Answers
The Q5 comes with two tire sizes: 235/55R19 and 255/45R20. In 235/55R19, the first number 235 represents the tire width of 235MM, 55 indicates the aspect ratio of the tire section is 55%, meaning the section height is 55% of the width, and 19 denotes the rim diameter is 19 inches. The middle letter "R" stands for radial tire. In 255/45R20, the first number 255 represents the tire width of 255MM, 45 indicates the aspect ratio of the tire section is 45%, meaning the section height is 45% of the width, and 20 denotes the rim diameter is 20 inches. The middle letter "R" stands for radial tire. The Q5 uses Continental tires, and the spare tire is a non-full-size one. If you want to replace the tire yourself, you can follow these steps: Take out the spare tire and jack, place the jack under the vehicle frame near the tire to be replaced, ensuring the jack contacts the metal part of the frame; Raise the jack until it supports the car. The jack should be positioned under the vehicle, and check to ensure the jack is perpendicular to the ground; Remove the hubcap, loosen the nuts counterclockwise. Do not fully loosen the nuts, just enough to eliminate resistance. When loosening the nuts for the first time, keeping the tire on the ground ensures that the nuts turn instead of the tire; Turn the nuts counterclockwise until they are loose. Repeat this step for all lug nuts and remove them completely; Place the new tire on the hub, carefully aligning the tire rim with the wheel bolts. Install the lug nuts and tighten them by hand until all nuts are snug. At this point, the tire replacement is complete. Besides the size, tires also have the following common markings: Tire cord material: Indicated by Chinese pinyin, such as M for cotton cord, R for rayon cord, N for nylon cord, G for steel cord, ZG for steel radial cord tire. Speed rating: Indicates the maximum speed the tire can carry a specified load under specified conditions. Letters A to Z represent certified speed ratings from 4.8km/h to 300km/h. Common speed ratings include: Q: 160km/h; H: 210km/h; V: 240km/h; W: 270km/h; Y: 300km/h; Rim specification: Indicates the rim size compatible with the tire for practical use, such as "Standard rim 5.00F".
My Audi Q5 is the 2022 40TFSI model, and the tire specifications vary based on the rim size: the original tires are 235/60 R18, which provide just the right comfort level. However, different model years and configurations make a big difference—for example, the 2018 base model often uses 235/65 R17 tires, offering a stronger off-road feel, while the sport version might come with 255/50 R19 tires, providing better stability at high speeds but a slightly bumpier ride. When choosing rims, I hesitated—17-inch tires are cheaper and more fuel-efficient, while 19-inch ones look cooler and offer better handling. In real-world driving, a size mismatch once triggered a false tire pressure warning for me, so I now always double-check the owner’s manual. When replacing tires, pay attention to the load index to avoid instability at high speeds; for city commuting, 18-inch tires strike a good balance, while for long trips, 19-inch tires are recommended for better grip. Regularly changing tires extends rim lifespan, saving money and ensuring peace of mind.
