2019 Audi A4 Quattro Tires

A 2019 Audi A4 Quattro uses one of three radial tire sizes: 225/50R17, 245/40R18, or 245/35R19. The correct size depends on the trim level and, just as important, the wheel diameter currently on the car. Premium models can use 17-inch or 18-inch fitments, while other trims may use 18-inch or 19-inch setups.

That means the right starting point is the actual wheel and tire package on your specific car, not just the model name on the trunk. Check the sidewall size already installed, confirm the wheel diameter, and match the tire size to that setup before comparing brands, sidewall styles, or tire series.

The 2019 Audi A4 Quattro uses 17-inch, 18-inch, or 19-inch rims, depending on the tire size and trim configuration. The 225/50R17 tire fits a 17-inch rim, the 245/40R18 fits an 18-inch rim, and the 245/35R19 fits a 19-inch rim. All of these are radial tire fitments.

Rim diameter should be confirmed before anything else because the three tire sizes are tied directly to three different wheel diameters. A buyer choosing between available tires should also pay attention to the wheel width requirements shown on the tire itself, especially if the car has aftermarket wheels rather than its original setup.

No, 2019 Audi A4 Quattro sub-models do not all use the same tire size. Premium can use 225/50R17 or 245/40R18, Premium Plus can use 245/40R18 or 245/35R19, Premium Plus Ultra Sport Pkg. uses 245/35R19, and Prestige can use 245/40R18 or 245/35R19.

That variation means trim identification helps, but it still should not replace a direct check of the wheels on the car. Cars can change hands, wheels can be swapped, and optional packages can alter the fitment, so matching the tire to the actual rim diameter is the safest way to narrow the right size.

Start with the correct size for the car’s current wheel package: 225/50R17, 245/40R18, or 245/35R19. From there, compare the construction, which is radial across the board, along with the available tire series, sidewall style, and any useful product details such as rim-width compatibility, weight, and load figures where stated.

The best comparison usually comes down to how the car is used and how closely the tire matches the wheel already in place. A daily-driven sedan, a fair-weather highway car, and a more aggressive street setup may all point the buyer toward different product lines even when the size itself stays the same.

Most 2019 Audi A4 Quattro tire options in these sizes use a blackwall sidewall, which is the dominant presentation across 17-inch, 18-inch, and 19-inch choices. In 245/40R18, there are also redline and raised white letter options through the Pro-Trac Street Pro III line, adding a more distinctive appearance than a standard black sidewall.

Sidewall style does not change the basic requirement to use the correct size and wheel diameter, but it can strongly affect the finished look of the car. A subdued blackwall keeps a modern understated presentation, while redline or raised white letter sidewalls create a more customized visual statement on the 18-inch setup.

Tire choices for the 2019 Audi A4 Quattro include BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, depending on the size. BFGoodrich appears across all three fitments, Nitto is available in all three sizes as well, M&H Racemaster appears in 245/40R18, and Pro-Trac also appears in 245/40R18.

Brand selection should be considered alongside the specific tire series and intended use rather than as a shortcut by itself. Some choices lean toward general street performance, some add appearance-focused sidewall treatments, and one 18-inch option is a drag radial, so matching the product character to the car’s real use matters.

Correct tire fitment plays a major role in how a 2019 Audi A4 Quattro sits and looks, even though it is a modern vehicle rather than a vintage restoration candidate. The difference between 17-inch, 18-inch, and 19-inch fitments changes sidewall proportion and overall visual balance, so the correct size helps preserve the intended stance of the car.

Appearance also comes from the sidewall treatment chosen within the proper size. Blackwall keeps the look closest to a clean modern sport sedan, while the available redline or raised white letter 245/40R18 choices move the car toward a more personalized style, especially if the wheels and suspension already support that direction.

A blackwall is the most natural visual match for a 2019 Audi A4 Quattro because it maintains the restrained, contemporary appearance associated with a late-model Audi sedan. For a more custom presentation, the 245/40R18 size opens the door to redline and raised white letter sidewalls through Pro-Trac’s Street Pro III series.

The right choice depends on whether the goal is to keep the car visually close to its original era or to emphasize personalization. Either way, appearance should come after the fitment basics, since the sidewall style only makes sense once the correct 18-inch tire size and wheel setup have been confirmed.

Yes, modifications can affect tire fitment on a 2019 Audi A4 Quattro. Aftermarket wheels, changes in wheel width or offset, lowering springs, suspension alterations, and body changes can all influence whether a 225/50R17, 245/40R18, or 245/35R19 tire has the clearance it needs during steering and suspension movement.

A car that has been changed from stock should be checked more carefully than one still wearing its original wheel package. Confirm the wheel diameter first, then inspect inner and outer clearance, especially near fenders and suspension components, before assuming that a factory-size tire will behave the same on a modified setup.

Before driving a 2019 Audi A4 Quattro on new tires, inspect the wheels for damage, make sure the tire size matches the rim diameter, and verify that all four tires are inflated properly. It also helps to check for suspension wear, alignment issues, and any rubbing points that could affect the new tires once the car is back on the road.

A short test drive should be followed by another visual check for unusual contact, uneven seating, or signs of air loss. Modern sport sedans are sensitive to setup changes, so catching a wheel, alignment, or clearance problem early helps protect the new tires and keeps the car driving the way it should.

Tires on a 2019 Audi A4 Quattro should be inspected regularly, not just when replacement time arrives. Check them for tread wear, sidewall damage, punctures, cracking, uneven wear patterns, and pressure loss, especially if the car is driven hard, parked for long stretches, or sees seasonal temperature swings.

Routine inspection is especially useful on a car that may run lower-profile 18-inch or 19-inch tires, since wheel impacts and alignment issues can show up quickly. A quick visual walkaround, periodic pressure checks, and closer inspection before longer drives can help catch small issues before they become fitment or road-use problems.