2014 Audi A6 Quattro Tires

The 2014 Audi A6 Quattro uses four primary tire sizes: 225/55R17, 245/45R18, 255/40R19, and 255/35R20. All of them are radial sizes, but they do not apply across every trim in the same way. The correct size depends on the exact sub-model and, just as importantly, the wheel package on the car.

The most practical first step is to confirm the actual rim diameter currently on the vehicle, because this A6 Quattro spans 17-inch through 20-inch wheels. After that, match the tire size to the car's trim and wheel setup before comparing tire series, sidewall style, and other product details within that confirmed size.

A 2014 Audi A6 Quattro can use 17-inch, 18-inch, 19-inch, or 20-inch rims depending on trim level and wheel option. Those rim diameters correspond to the vehicle's primary tire sizes: 225/55R17, 245/45R18, 255/40R19, and 255/35R20. All of these are radial fitments rather than vintage bias-ply sizes.

Since more than one rim diameter applies to this model, wheel size should be verified before any tire purchase. That matters even more on cars that may have changed hands or received aftermarket wheels, because the current setup can differ from the original package and lead to the wrong tire size being selected.

The 2014 Audi A6 Quattro has more than one tire size because tire fitment varies with trim and wheel package. Premium models can use 17-inch or 18-inch setups, while Premium Plus, Prestige, and the TDI versions may use 18-inch, 19-inch, or 20-inch applications. Each size is tied to a specific rim diameter.

That means the right tire is not chosen by model name alone. The car's exact sub-model helps narrow the possibilities, but the final check should always be the wheel diameter already on the vehicle. Once that is confirmed, the remaining decision becomes selecting the preferred tire series and sidewall treatment in the correct size.

Start with the correct primary size for the car, because the 2014 Audi A6 Quattro uses four different radial fitments depending on trim and wheel package. After confirming size, compare construction details that matter within that category, such as rim-width compatibility, load figures where stated, tire weight, and whether the tire is aimed at performance use or specialty appearance.

The next decision is how the car will be used and how it should look. Some sizes stay strictly blackwall and performance-oriented, while others add choices like redline, raised white letter, or wide whitewall. That makes this less about finding any tire that matches the numbers and more about selecting one that suits the car's current setup and presentation.

Sidewall style depends on the tire size chosen for the 2014 Audi A6 Quattro. Blackwall is available across all four primary sizes, while redline appears in 17-inch, 19-inch, and 20-inch options. Raised white letter is offered in the 255/40R19 and 255/35R20 sizes, and a wide whitewall option appears in 225/55R17.

Those choices matter mostly for appearance rather than basic fitment, so the correct tire size still comes first. Once the size is confirmed, the sidewall becomes a way to keep the car understated with blackwalls or give it a more customized look with redline, raised white letter, or whitewall styling where available.

Tires for the 2014 Audi A6 Quattro are available from BFGoodrich, Nitto, and Pro-Trac, depending on size. BFGoodrich covers all four primary fitments with several g-Force and Silvertown Radial offerings, while Nitto appears in selected 18-inch and 20-inch sizes. Pro-Trac is available in the 19-inch and 20-inch applications.

Brand choice should be compared within the correct tire size rather than across the entire model range. Some sizes emphasize mainstream blackwall performance options, while others include more appearance-focused selections. After confirming size and wheel diameter, compare the available brands by tire series, sidewall presentation, and any load or rim-width details that matter to the car's setup.

On a 2014 Audi A6 Quattro, tire construction is straightforward because the primary fitments are all radial. The appearance difference comes less from bias-ply versus radial choice and more from sidewall treatment, tire series, and profile. Depending on size, the car can wear a plain blackwall look or more attention-grabbing options such as redline, raised white letter, or wide whitewall.

For a restoration-oriented or carefully presented A6, the tire should match the personality of the finished car rather than compete with it. A subdued blackwall generally keeps the look modern and restrained, while specialty sidewalls move the car toward a more customized statement. Wheel diameter still needs to stay at the center of the decision because appearance options vary by size.

Correct tire fitment matters on a 2014 Audi A6 Quattro restoration because the model uses multiple wheel diameters and corresponding tire sizes. A car fitted with 17-inch wheels needs a different tire than one wearing 19-inch or 20-inch wheels, even though all are part of the same year and model family. Getting the size wrong changes more than appearance.

Restoration-minded buyers should confirm the exact trim and the actual wheel package on the car before choosing a tire. Once that is established, the finish can be shaped with blackwall or specialty sidewall choices in sizes where those options exist. If exact originality is important, vehicle-specific photos, window-sticker records, or marque reference material can help narrow the period-appropriate look.

Yes, modifications can affect tire fitment on a 2014 Audi A6 Quattro. Aftermarket wheels, changes in wheel width, altered offset, suspension lowering, or body modifications can all change how a 225/55R17, 245/45R18, 255/40R19, or 255/35R20 tire sits in the wheel opening. That is especially important on the 19-inch and 20-inch setups.

A car that no longer carries its original wheel package should be checked carefully before replacement tires are chosen. Measure the actual rim diameter, confirm the wheel width where possible, and inspect steering and fender clearance at full lock and full suspension travel. Those checks matter more than trim name alone once the vehicle has been modified.

Before driving a 2014 Audi A6 Quattro on new tires, inspect the wheels for damage, confirm that the tire size matches the car's actual rim diameter, and make sure each tire is seated and inflated correctly. It is also wise to look over suspension and steering components so the new tires are not being asked to compensate for existing wear.

A short road test should include listening for rubbing, feeling for vibration, and checking that the car tracks normally. After the first miles, recheck pressure and visually inspect for any marks that suggest clearance trouble. This is particularly worthwhile on 19-inch and 20-inch applications, where lower-profile tires leave less margin for setup errors.

Tires on a 2014 Audi A6 Quattro should be inspected regularly, not only when tread looks worn. Pressure, tread condition, sidewall damage, uneven wear, and signs of air loss deserve routine attention, especially on a car that may alternate between daily use and longer parked periods. Low-profile fitments also make visual checks more important.

A quick inspection before longer drives is a smart habit, and parked vehicles still benefit from periodic checks because age and storage conditions can affect tire condition even with limited mileage. Look for cracks, bulges, or cuts, and pay attention to any change in ride feel. Catching those problems early helps protect both the wheels and the tire investment.