2007 Audi Tire Fitment Guide

2007 Audi vehicles use 15 different tire sizes across 11 models: 225/45R17, 225/40R18, 215/55R16, 235/45R17, 235/40R18, 225/55R16, 245/40R18, 245/45R17, 255/40R19, 255/45R18, 275/35R20, 255/35R19, 255/40R18, 265/35R19, and 265/35R20. A3 and A3 Quattro share 225/45R17, A4 and A4 Quattro share 215/55R16, 235/45R17, and 235/40R18, A6 and A6 Quattro share 245/40R18 and 245/45R17, while the A8 Quattro, RS4, S4, S6, and S8 each have their own model-specific combinations. Rim diameters span 16, 17, 18, 19, and 20 inches depending on model and package.

That range means year and make alone are not enough on a 2007 Audi. The practical first step is to identify the exact model and verify the wheel diameter already on the car, because several Audi lines used more than one factory fitment. Once the model and wheel size are confirmed, you can narrow the choice to the correct tire size and compare the available speed ratings, sidewall styles, and rim-width compatibility within that size.

On a 2007 Audi, 225/45R17 is a metric radial size. The 225 is the nominal section width in millimeters, 45 is the aspect ratio showing the sidewall height as 45 percent of the section width, R means radial construction, and 17 is the wheel diameter in inches. On 2007 Audi models, this size fits the A3 and some A3 Quattro applications.

That decoding matters because a size that looks close on paper may still be wrong if the wheel diameter or sidewall profile changes. For an A3-family car, 225/45R17 preserves the intended 17-inch fitment and overall profile, while the A3 Quattro can also appear with 225/40R18 on larger wheels. If your car has been changed from stock over the years, checking the sidewall on the current tires and measuring the wheel diameter is the safest way to confirm what belongs on it now.

No, 2007 Audi models do not use one universal tire size. The compact A3 family uses 17- and 18-inch fitments, the A4 family uses 16-, 17-, and 18-inch sizes, the A6 family uses 16-, 17-, and 18-inch sizes, and the larger A8, S, and RS models move into 18-, 19-, and 20-inch territory. Even within one model line, more than one factory tire size can appear depending on wheel package.

That means identifying the badge on the trunk is only the starting point. An A4 and an A4 Quattro may share sizes, while an RS4 or S8 uses a much more specialized fitment that should not be substituted casually. If you are unsure whether your Audi still has its original wheels, confirm the actual tire size currently mounted and compare the wheel diameter before choosing a replacement.

Most 2007 Audi sizes are available in blackwall form, which matches the original modern European appearance Audi used across the lineup. A few sizes add specialty sidewall treatments: 215/55R16 is available in redline and wide whitewall versions, 255/45R18 and 275/35R20 can be found with raised white letters, and 265/35R20 is available in blackwall, redline, and raised white letter form. Those visual options are the exception rather than the rule for 2007 Audi fitments.

For a factory-correct restoration or a stock-looking driver, blackwall is usually the natural choice on a 2007 Audi. Specialty sidewalls suit owners building a more custom look or repurposing a size for another style of vehicle, but they change the visual character significantly. If appearance matters as much as fitment, decide on the sidewall style before narrowing the final product within the correct size.

2007 Audi tire sizes are covered by BFGoodrich, Nitto, American Classic, M&H Racemaster, and Pro-Trac. BFGoodrich appears across nearly the full range, Nitto covers many of the sport-oriented metric sizes, American Classic appears in 215/55R16 specialty sidewall versions, M&H Racemaster appears in 245/40R18 and 245/45R17, and Pro-Trac appears in 255/45R18, 275/35R20, and 265/35R20. Brand choice depends heavily on the exact size because not every brand appears in every fitment.

For most Audi owners, the useful comparison is not simply brand versus brand, but brand within the correct size. Some sizes offer only one or two brands, while others offer a broader mix with different sidewall looks and speed ratings. Once the size is confirmed, compare the intended use of the car, the sidewall appearance you want, and any speed-rating difference before settling on a specific tire.

In 2007 Audi sizes such as 235/40R18 and 245/40R18, BFGoodrich and Nitto both offer blackwall radial products, but their speed ratings and load figures can differ by series. In 235/40R18, BFGoodrich appears in W-rated and Y-rated versions, while Nitto appears in a W-rated version; in 245/40R18, BFGoodrich again spans W and Y ratings, while Nitto is W-rated. Rim-width recommendations are also closely matched, generally centering on 8.0 to 9.5 inches in those sizes.

For an Audi owner, that means the right comparison starts with the exact size and then moves to the speed rating and intended character of the tire. If you want to keep choices simple, stay within the correct wheel diameter and profile, then compare whether a W-rated or Y-rated product better matches how the car will be used. The final step is confirming that your wheel width falls within the recommended range for the exact tire you choose.

Rim-width recommendations vary by size on 2007 Audi fitments. Examples include 225/45R17 at about 7.0 to 10.0 inches depending on product, 225/40R18 at 7.5 to 9.0, 235/45R17 at 7.5 to 9.0, 235/40R18 at 8.0 to 9.5, 245/40R18 at 8.0 to 9.5 with one drag radial at 8.5, 245/45R17 at 7.5 to 9.0 with one drag radial at 8.0, 255/40R19 at 8.5 to 10.0, and 275/35R20 at 9.0 to 11.0. Some specialty products have narrower or more exact recommendations than the mainstream radials in the same size.

That is why wheel width should be checked on the actual car before ordering, especially if the Audi has aftermarket wheels. A tire can share the correct diameter and still be a poor match if the wheel is too narrow or too wide for the chosen product. If your Audi runs one of the larger S, RS, or A8 sizes, measuring the wheel and comparing it with the individual tire's acceptable range is especially important.

2007 Audi tire products are overwhelmingly modern tubeless radial designs, and some sizes explicitly show tubeless marking within the size description, such as 245/40ZR18 97Y XLTL and 255/40ZR19 100Y XLTL. Other products do not spell out the tubeless designation in the same way, so the exact marking can vary by product even within a size. No 2007 Audi fitment here points toward a tube-type collector-era construction.

For a 2007 Audi, the practical approach is to match the tire to the wheel design and confirm the sidewall marking on the exact product you choose. Original Audi alloy wheels from this period are generally used with tubeless radial tires, but a wheel that has been repaired, modified, or changed may deserve closer inspection. Valve stems, bead-seat condition, and wheel integrity matter just as much as the tire construction when you are setting up a modern Audi fitment properly.

A 2007 Audi should be stored away from direct sunlight, standing moisture, and ozone-producing equipment such as electric motors, welders, and air compressors. Keep the tires clean, maintain inflation, and move the car periodically so one section of the tread does not sit loaded in the same spot for months. Radials generally tolerate storage better than older bias-ply designs, but they still age from time, heat, and environmental exposure.

For a seasonal or collector-driven Audi, a cool, dry garage and occasional repositioning are usually enough to protect the tires. If the car will sit for a long period, some owners prefer tire cradles or stands to reduce static loading, especially on larger low-profile sizes. Before returning the car to service, inspect for sidewall cracking, tread hardening, and any pressure loss that may have developed during storage.

On a low-use 2007 Audi, tire age matters at least as much as tread depth. A practical rule is to inspect them closely starting around five to seven years of age and to treat the ten-year point as a serious replacement consideration regardless of remaining tread. The DOT date code on the sidewall tells you when each tire was made, which is especially important on cars that see occasional weekend use rather than daily mileage.

That guidance matters because many 2007 Audis are now enthusiast-owned and may cover very few miles each year. A tire can look usable but still lose flexibility and margin with age, particularly on heavier or higher-performance models like the A8, S, and RS cars. When in doubt, age, visible cracking, persistent vibration, or repeated air loss are stronger reasons to replace than tread wear alone.

Tires on a 2007 Audi should be inspected before every drive and more carefully before any extended highway trip. Look for uneven wear, cuts, bulges, punctures, curb damage, and sidewall cracking, and confirm that all four tires are holding pressure consistently. On performance-oriented Audi sizes with shorter sidewalls, it is also wise to check the inner sidewall area closely because damage there is easier to miss.

Regular inspection is especially important on cars that alternate between long storage periods and occasional spirited driving. A quick walkaround catches problems early, while a more thorough check with a pressure gauge helps protect the wheel as well as the tire. If the spare is still carried in the car, inspect that tire too, because a neglected spare often turns out to be the oldest tire on the vehicle.

Yes, the 2007 Audi sizes here are modern radial fitments intended for real road use, and many carry W or Y speed ratings. W-rated products are capped at 112 mph, while Y-rated products are capped at 186 mph; some sizes, such as 235/40R18, 245/40R18, 255/40R19, 275/35R20, 255/35R19, 255/40R18, 265/35R19, and 265/35R20, offer both depending on product choice. At ordinary U.S. highway speeds, the condition of the tire, proper inflation, and the health of the Audi's suspension and alignment are usually more important than the maximum rating itself.

The key is to choose a tire whose speed rating and load capability make sense for the exact model and the way it will be driven. A healthy A4 commuter and an RS4 or S8 used for higher-speed touring do not place the same demands on a tire, even if both are technically road-going cars. For any 2007 Audi, safety comes from correct size, correct pressure, sound wheels, and a fresh tire rather than from chasing the highest rating alone.

Inflation pressure on a 2007 Audi should follow the factory vehicle recommendation first, with the tire's maximum pressure and load figure used as the tire's rated ceiling rather than a default running pressure. Some products show load and pressure figures such as 1,190 pounds at 35 psi for certain 215/55R16 tires, 1,477 pounds at 50 psi for some 225/45R17 products, 1,609 pounds at 50 psi for some 235/45R17 and 245/40R18 products, and 1,929 pounds at 50 psi for one 255/45R18 product. Those numbers are not interchangeable from one Audi size to another.

Because 2007 Audi fitments vary so much by model and wheel package, it is important to use the pressure label for the exact car and size rather than borrowing a number from another Audi or another tire size. Start with the vehicle placard or owner's manual, then confirm that the chosen tire's rated limits are compatible with that use. Recheck pressure when the weather changes, because low-profile modern radials respond noticeably to temperature swings.

Before a longer trip in a 2007 Audi, inspect each tire for cracking, punctures, cuts, bulges, uneven wear, and signs of impact damage, then verify cold inflation pressure and tread condition. Check the age of the tires if the car is driven infrequently, and inspect the spare if one is present. On larger-wheel models such as the A8, RS4, S6, and S8, also look carefully for bent rims or bead-seat damage because low-profile tires can hide wheel issues until vibration shows up at speed.

A tire check should be part of a broader pre-drive inspection on any 2007 Audi, especially now that these cars are old enough to be hobby vehicles. Alignment, suspension bushings, brakes, and wheel bearings all influence how safely the tires perform on the road. If anything feels off in the steering, braking, or ride quality during the first few miles, stop and inspect rather than assuming the problem will clear itself up.