
The A4L has three tire specifications: the Audi A4L 2022 35TFSI Fashion Dynamic model is equipped with 225/50R17 tires, the Audi A4L 2022 40TFSI Luxury Dynamic model uses 245/40R18 tires, and the Audi A4L 2022 40TFSI quattro RS Kit Speed Edition is equipped with 245/35R19 tires. In the 225/50R17 specification, the first number 225 represents the tire width of 225MM, 50 indicates the aspect ratio of the tire section is 50%, meaning the section height is 50% of the width, and 17 represents the rim diameter of 17 inches. The letter "R" in the middle stands for radial tire. In the 245/40R18 specification, the first number 245 represents the tire width of 245MM, 40 indicates the aspect ratio of the tire section is 40%, meaning the section height is 40% of the width, and 18 represents the rim diameter of 18 inches. The letter "R" in the middle stands for radial tire. In the 245/35R19 specification, the first number 245 represents the tire width of 245MM, 35 indicates the aspect ratio of the tire section is 35%, meaning the section height is 35% of the width, and 19 represents the rim diameter of 19 inches. The letter "R" in the middle stands for radial tire. The original tires of the Audi A4 come from brands such as Michelin, Goodyear, Pirelli, and Dunlop, featuring a cyclone-style wheel design, with all models equipped with non-full-size spare tires. If you want to replace the tires yourself, you can follow these steps: Take out the spare tire and jack, place the jack under the frame of the tire to be replaced, ensuring the jack touches the metal part of the frame. Raise the jack until it supports the car, making sure the jack is positioned under the vehicle and forms a right angle with the ground. Remove the hub cap, loosen the nuts counterclockwise, but do not fully unscrew them—just enough to eliminate resistance. Keeping the tire on the ground when loosening the nuts for the first time ensures that the nuts turn, not the tire. Continue turning the nuts counterclockwise until they are loose, repeat this step for all lug nuts, and then remove the nuts 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. In addition to the model, 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, and ZG for steel radial cord tires. Speed rating: Indicates the maximum speed at which the tire can carry a specified load under defined 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.

A veteran driver who has owned several generations of the A4L said: The tires on this car really depend on the configuration! The base model often comes with 225/50 R17 tires, commonly paired with five-spoke wheels and Michelin Primacy 3ST, which offer excellent noise control. After the mid-cycle facelift, the sport version directly upgraded to 245/40 R18 large wheels, providing noticeably stronger grip and rock-solid stability in corners. If you get the 45 TFSI quattro version, it comes with 19-inch star-shaped wheels and 255/35 wide tires, with sidewalls as thin as those on a sports car—you’d better take it easy over speed bumps. When replacing tires, always check the label on the door frame. Once, a repair shop mistakenly installed 235-width tires for me, and the steering became noticeably heavier.

The tire shop owner chatted while changing tires: Just replaced a front tire for a 2023 A4L yesterday, and the original tire was actually a Pirelli P7 245/45 R18! really knows how to play the game—even the same model year can have different tire brands across batches. There are typically three common specifications: 17-inch 225/50, 18-inch 245/40 or 245/45, and the top-tier 19-inch 255/35. Pay special attention to that 'Y' speed rating at the end—a max speed of 270 km/h. German cars really spare no expense on materials. A reminder to all owners: for rear-wheel-drive versions, front tires wear out 30% faster than the rear ones, so remember to rotate them every 20,000 km.

The car enthusiast showing off his keys said: My 40 TFSI came with conservative 18-inch wheels, so I upgraded directly to 20-inch BBS rims! To fit 255/30 R20 tires, I had to adjust the suspension, otherwise they'd rub the fenders. Actually, the factory specs are quite precise—tire outer diameter is generally controlled around 68 cm, and size modifications shouldn’t exceed 3%. The tire pressure monitoring system is super sensitive; it kept triggering alarms after the tire change, and it took half an hour of reprogramming at the dealership to sort it out. For winter, I recommend switching to 225/55 R17 snow tires—smaller rims actually improve traction.

The female car owner pointed at the wheel and complained: The salesperson initially said the tires were Goodyear, but upon delivery, they turned out to be Hankook Ventus S1 evo3! Only after checking the manual did I understand the nuances in the 245/40 R18 specification—the 94Y load index indicates a single tire can bear 670 kg. Once, when repairing a punctured tire, the mechanic mentioned that the AO-marked -specific tires have an extra layer of cord fabric in the sidewall, costing 200 more than the standard version but offering better resistance to bulging. It's recommended to maintain a tire pressure of 2.5 bar, as higher pressure in German cars can actually improve fuel efficiency.

Auto repair apprentice flipping through the system: Master taught me to identify whether the A4L tires are from the 8th or 9th generation. The B9 model uses 17-inch 225/50 tires, and starting with the F4 code's 2019 facelift, they switched to a new formula of self-sealing tires. Came across a bizarre case—customer complained about high-speed vibration, and inspection revealed different tire brands on the left and right! Checking the VIN showed the right front tire was made in Germany at the factory, while the left front was a Goodyear from the Czech Republic, with a tread depth difference of 0.3mm. Now when replacing tires, we require the same brand and tread pattern on the same axle—safety is no small matter.


