The 2013 Audi A6 sits firmly in the modern luxury sport-sedan category, blending understated styling with the kind of long-distance comfort and road manners buyers expect from Audi’s mid-size flagship sedan. Tire selection on this car starts with confirming which of its three radial fitments applies: 225/55R17, 245/45R18, or 255/40R19. Those sizes stay close in overall diameter but change wheel diameter, section width, and the character of the car’s stance. Available choices range from blackwall performance-oriented radials to redline, wide whitewall, and raised white letter styles, so the real decision is balancing wheel setup, appearance, and intended driving use.
Which Tire Size Is Right for The 2013 Audi A6
The 2013 Audi A6 uses three primary tire sizes, and the right one depends first on the wheel diameter already on the car. All three are radial metric sizes, but they pair with different 17-inch, 18-inch, or 19-inch rims and are not interchangeable just because they fit the same model line. Before choosing a tire, confirm the exact sub-model and inspect the actual wheel setup if the car may have been changed from stock.
225/55R17 is a metric radial size in which 225 is the nominal section width in millimeters, 55 is the aspect ratio, R identifies radial construction, and 17 is the rim diameter in inches. On the 2013 Audi A6, this size suits a 17-inch wheel and gives a more substantial sidewall than the larger-diameter options. Product choices include BFGoodrich offerings in blackwall, wide whitewall, and redline form across g-Force and Silvertown Radial series. This size is worth considering when the car is already on 17-inch rims and the goal is to preserve that wheel-and-tire relationship while choosing the appearance you want.
245/45R18 is a metric radial size with a 245-millimeter nominal section width, a 45-series profile, radial construction, and an 18-inch rim diameter. For the 2013 Audi A6, this size moves to a wider tire on an 18-inch wheel while staying close in overall diameter to the other primary fitments. Available choices are mostly blackwall radials from BFGoodrich and Nitto, including g-Force and NT555 G2 series. This fitment makes sense when the car is equipped with 18-inch wheels and you want to compare brand, rim-width specification, and performance-oriented product character within the correct size.
255/40R19 is a metric radial size that uses a 255-millimeter nominal section width, a 40-series profile, radial construction, and a 19-inch rim. On the 2013 Audi A6, it is the widest of the three primary sizes and belongs with a 19-inch wheel setup. Available products include blackwall options from BFGoodrich plus Pro-Trac alternatives in raised white letter and redline styling under the Street Pro III series. This size deserves careful attention when appearance matters, since it combines the largest wheel diameter with the broadest sidewall-style variety among the A6’s listed fitments.
Sub-model fitment on the 2013 Audi A6 is not completely uniform, so the exact trim matters before selecting tires. Premium can use all three listed sizes, while Premium Plus is limited to the 18-inch and 19-inch fitments, making wheel confirmation especially important.
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2013 Audi A6 Premium
The 2013 Audi A6 Premium can be equipped with 225/55R17, 245/45R18, or 255/40R19 radial tires, so this trim has the broadest fitment range of the covered sub-models. Tire selection starts with the wheel diameter already on the car, then moves to brand, sidewall style, and intended appearance or road use.
The 2013 Audi A6 Premium Plus uses the larger-wheel fitments in this group, with 245/45R18 and 255/40R19 radial sizes. That means the first step is confirming whether the car is on 18-inch or 19-inch wheels before comparing blackwall, redline, or raised white letter product options where available.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2013 Audi A6 Tires for Sale
Available 2013 Audi A6 tire choices span 17-inch, 18-inch, and 19-inch radial fitments from BFGoodrich, Nitto, and Pro-Trac. Depending on size, buyers can compare g-Force, Silvertown Radial, NT555 G2, and Street Pro III series in blackwall, wide whitewall, redline, and raised white letter styles.
These 2013 Audi A6 tire FAQs focus on the three factory-size fitments, wheel-diameter differences, product choices by brand and sidewall style, and the fitment checks that matter before road use or after wheel and suspension changes.
Tire Size & Fitment
What tire size fits a 2013 Audi A6?
The 2013 Audi A6 uses three primary tire sizes: 225/55R17, 245/45R18, and 255/40R19. All three are radial metric sizes, and each one belongs to a different wheel diameter. The correct choice depends on the exact sub-model and, just as importantly, the actual wheels installed on the car.
A6s are often easy to identify by wheel size, but that should still be verified before ordering tires. A Premium can use any of the three listed sizes, while Premium Plus uses the 18-inch and 19-inch fitments. If the car has aftermarket wheels, confirm the present rim diameter and width rather than assuming the original setup is still in place.
What size rim does a 2013 Audi A6 use?
The 2013 Audi A6 uses 17-inch, 18-inch, or 19-inch rims depending on tire size. The 225/55R17 tire fits a 17-inch rim, 245/45R18 fits an 18-inch rim, and 255/40R19 fits a 19-inch rim. Rim diameter is the key measurement that determines which of these primary tire sizes belongs on the car.
Matching the tire to the wheel diameter is the first fitment step, but it is not the only one. Rim width still matters within each size, especially on the wider 18-inch and 19-inch fitments. Looking at the tire sidewall and confirming the stamped wheel size helps prevent ordering the right tire size for the wrong wheel.
Why does the 2013 Audi A6 have more than one tire size?
The 2013 Audi A6 has more than one tire size because it was equipped with different wheel diameters across its covered trim range. The listed fitments move from 17-inch to 19-inch wheels while staying relatively close in overall tire diameter. That approach changes width and sidewall profile without turning the car into a completely different rolling package.
For the buyer, that means tire selection is really about matching the car’s present wheel setup rather than choosing freely among three interchangeable sizes. The Premium trim can use all three listed fitments, but Premium Plus is limited to the larger two. Verifying the trim and current wheels avoids clearance and compatibility problems caused by guessing.
Choosing the Right Tire
What should I consider when choosing a tire for a 2013 Audi A6?
Start with the correct primary size for the car’s wheel diameter: 225/55R17, 245/45R18, or 255/40R19. From there, compare construction, brand, sidewall style, tire series, and rim-width compatibility within that exact size. The A6 uses radial tires throughout, so the real decision is not construction type but how the specific tire matches the car’s setup and intended use.
Appearance can matter just as much as brand on this application because some sizes offer only blackwall choices, while others also include redline, wide whitewall, or raised white letter styles. It also helps to compare product weight and load figures where they are given. Those details become more important if the car sees regular highway driving or has non-stock wheels.
What sidewall styles are available for 2013 Audi A6 tires?
Sidewall style depends on the tire size selected for the 2013 Audi A6. Blackwall choices are available across all three primary sizes, while 225/55R17 also includes wide whitewall and redline options. The 255/40R19 fitment adds redline and raised white letter choices, giving that size the widest appearance range.
This matters because sidewall treatment can change the visual character of the car without changing the underlying tire size. A blackwall look keeps things more contemporary, while redline, wide whitewall, or raised white letter options create a more customized presentation. The first step is still matching the correct size to the wheel before narrowing the decision by appearance.
What brands offer tires for the 2013 Audi A6?
BFGoodrich, Nitto, and Pro-Trac all appear in the available tire choices for the 2013 Audi A6, although not every brand is offered in every size. BFGoodrich covers all three fitments and includes several series, while Nitto appears in 245/45R18 and Pro-Trac appears in 255/40R19 with specialty sidewall treatments.
Brand choice should be made after the correct size is confirmed, not before. Once the wheel diameter is settled, compare the available series in that size and look at sidewall style, rim-width range, and any listed load information that matters to how the car is used. The strongest comparison happens within one exact fitment, not across all three sizes.
Restoration & Appearance
Which tire should I choose for a period-style 2013 Audi A6?
A period-style 2013 Audi A6 tire choice starts with keeping the correct primary size for the wheel already on the car. Blackwall radials are the most natural visual fit for a modern luxury sedan, but the available catalog also includes redline, wide whitewall, and raised white letter options in certain sizes for a more customized presentation.
Because this is a modern-era Audi, appearance usually comes down to preserving the car’s original visual balance rather than recreating an older collector-car look. Wheel diameter should remain the first checkpoint. After that, choose the sidewall treatment that matches the car’s intended style, whether that means a restrained factory-inspired look or something noticeably more personalized.
How does tire construction affect the appearance of a restored 2013 Audi A6?
On a 2013 Audi A6, construction does not create the same visual split seen on older collector cars because the listed fitments are all radial tires. The appearance difference comes more from profile, wheel diameter, and sidewall treatment than from bias-ply versus radial construction. That keeps the focus on selecting the right size and the right external look.
A 17-inch setup with a 225/55R17 tire presents more sidewall, while the 19-inch 255/40R19 package looks wider and lower in profile. Sidewall styling can shift the result even further, especially where redline, wide whitewall, or raised white letter options are offered. Keeping those choices aligned with the car’s stance is the key to a cohesive finished appearance.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 Audi A6?
Yes, modifications can affect tire fitment on a 2013 Audi A6 even when the tire size itself is one of the listed primary options. Aftermarket wheels can change rim width and offset, while suspension changes can alter clearance at the fender, strut, and steering components. Those factors matter most on the wider 18-inch and 19-inch fitments.
A car that has been lowered, spaced outward, or fitted with non-stock wheels should be measured instead of assumed. Checking the actual wheel diameter, wheel width, and available clearance before replacing tires is the safest way to avoid rubbing or mismatch issues. That extra step is especially important if the car no longer sits on its original wheel-and-suspension combination.
What should I inspect before driving a 2013 Audi A6 on new tires?
Before driving a 2013 Audi A6 on new tires, inspect the wheel size, tire size, air pressure, and the basic condition of the suspension and steering. Make sure the tires match the rim diameter and that there is no visible interference at full lock or over suspension travel. It also helps to verify wheel fastener torque after installation.
A short initial drive followed by a recheck is a smart habit, especially if the car has recently changed wheel size or tire brand. Watch for vibration, pulling, unusual noise, or signs of rubbing. Keeping an eye on pressure and tread wear in the first few hundred miles can reveal alignment or fitment issues before they become expensive problems.
How often should tires on a 2013 Audi A6 be inspected?
Tires on a 2013 Audi A6 should be inspected regularly, not just when the tread looks worn. Pressure, tread condition, sidewall damage, uneven wear, and signs of slow air loss are all worth checking as part of normal ownership. On a car with low annual mileage, age and condition can matter just as much as miles driven.
Monthly visual checks are a sensible routine, with closer inspection before longer trips or seasonal use changes. It is also wise to inspect sooner if the car has hit potholes, curb edges, or rough pavement that could affect a low-profile tire. Staying ahead of cracking, bulges, or abnormal wear helps protect both ride quality and fitment confidence.
