2016 Audi A6 Quattro Tires

The 2016 Audi A6 Quattro uses three primary tire sizes: 245/45R18, 255/40R19, and 255/35R20. The correct size depends on the exact sub-model and, in many cases, the wheel option installed on the car, since these sizes correspond to 18-inch, 19-inch, and 20-inch rim diameters.

The practical step is to confirm the trim and physically verify the wheel diameter before ordering tires. A Premium, Prestige, or TDI version may appear similar at a glance, but the tire size can change with the wheel package, and that affects not only the tire itself but also the sidewall profile and available product choices.

A 2016 Audi A6 Quattro can use 18-inch, 19-inch, or 20-inch rims depending on the specific sub-model and option package. The matching tire sizes are 245/45R18 for 18-inch rims, 255/40R19 for 19-inch rims, and 255/35R20 for 20-inch rims.

Wheel diameter is the first fitment detail to confirm because each tire size is built around a specific rim diameter. Checking the actual wheel on the car matters even if the trim level seems known, especially on used vehicles where wheel swaps are common and the installed setup may differ from the original package.

The 2016 Audi A6 Quattro has more than one tire size because fitment changes with trim level and optional wheel packages. Standard applications commonly use 245/45R18, while 19-inch and 20-inch option packages move the car to 255/40R19 or 255/35R20.

That means tire selection is tied to the wheel package rather than the A6 Quattro name alone. A buyer should identify the exact sub-model, then confirm the actual wheel diameter and current setup, since replacement tires need to match the rim first before comparing sidewall appearance, brand, or tire series.

Start with the exact size the car uses: 245/45R18, 255/40R19, or 255/35R20. From there, compare the tire's construction, intended character, rim-width compatibility where stated, and available series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, NT555 G2, or Street Pro III.

The right choice depends on whether the priority is maintaining the existing wheel package, selecting a certain sidewall presentation, or matching the car's normal road use. It also helps to confirm the wheel has not been changed from stock diameter, since the product range and sidewall style options differ noticeably between the 18-inch, 19-inch, and 20-inch fitments.

Blackwall is the most widely available sidewall style for the 2016 Audi A6 Quattro across all three listed tire sizes. In the 255/40R19 and 255/35R20 sizes, there are also Pro-Trac Street Pro III options with RWL and redline sidewalls for buyers who want a more distinctive visual treatment.

Sidewall style does not change the need to match the correct size and wheel diameter first. Once fitment is confirmed, the sidewall becomes an appearance decision, with blackwall suiting a cleaner modern presentation while RWL or redline can add a stronger visual accent on 19-inch or 20-inch wheel packages.

Tires for the 2016 Audi A6 Quattro are available here from BFGoodrich, Nitto, and Pro-Trac. BFGoodrich appears across all three primary sizes, Nitto is available in selected 18-inch and 20-inch applications, and Pro-Trac appears in selected 19-inch and 20-inch sizes with distinctive sidewall treatments.

Brand choice should come after confirming the exact tire size and wheel diameter on the car. Once that is established, the comparison becomes more useful because each brand's offerings differ by tire series, sidewall style, and in some cases rim-width specification, rather than simply by the name molded into the sidewall.

Yes, modifications can affect tire fitment on a 2016 Audi A6 Quattro even when the tire size seems close to stock. Aftermarket wheels, changes in wheel width or offset, lowered suspension, or body alterations can all change the space available for the tire and influence how the car clears at full steering lock or over bumps.

That makes it important to inspect the actual setup rather than relying only on the model name. A6 Quattro sedans with non-original wheels should have diameter, width, and clearance checked carefully before replacement tires are chosen, especially when moving between the 18-inch, 19-inch, and 20-inch fitment families shown for this vehicle.

Before driving a 2016 Audi A6 Quattro on new tires, confirm that the tire size matches the wheel diameter and that each tire seats properly on the rim. It is also wise to check inflation pressure, lug torque, visible clearance around the suspension and fenders, and the general condition of the wheels themselves.

A brief recheck after the first miles is good practice, especially on a car with optional wheels or any previous modifications. Attention should also go to alignment behavior, unusual vibration, and any sign of rubbing, since those early checks help catch setup issues before they turn into uneven wear or drivability problems.

Tires on a 2016 Audi A6 Quattro should be inspected regularly rather than only at replacement time. Look over tread wear, sidewall condition, air pressure, and any cuts, bulges, or signs of irregular wear patterns, especially if the car is driven seasonally, stored for long periods, or sees rough pavement.

Routine inspection matters because a luxury sport sedan can hide tire problems until they affect ride quality or handling. It also helps to check tires before longer drives and after any wheel, brake, or suspension work, since changes in alignment or wheel fitment can show up first as unusual wear or clearance-related marks.