The 2011 Audi A6 sits in the late C6-generation range, where Audi blended understated executive-car styling with available supercharged 3.0T performance and quattro-era road manners. That combination makes tire choice especially important, because the car depends on the right profile and rim diameter to preserve its balance, stance, and everyday drivability. This A6 uses radial fitments in 245/45R17, 245/40R18, or the 255/35R19 package on the 19 Inch Option. Available choices range from blackwall performance radials to redline and raised white letter alternatives in some sizes. The real key is matching the exact sub-model and wheel package before comparing series, sidewall style, and overall tire character.
Which Tire Size Is Right for The 2011 Audi A6
The 2011 Audi A6 uses three primary tire sizes, and the right one depends first on the exact sub-model and wheel package. All three are radial fitments, but they do not share the same rim diameter, so confirming whether the car has 17-inch, 18-inch, or 19-inch wheels is the first step before comparing tire series, sidewall style, and other product differences.
245/40R18 is a metric radial size in which 245 identifies the nominal section width in millimeters, 40 is the aspect ratio, R denotes radial construction, and 18 is the rim diameter in inches. On the 2011 Audi A6, this size suits an 18-inch wheel package and keeps the low-profile look expected of a modern sport sedan. Available choices include BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, with blackwall, redline, and raised white letter sidewall treatments. This size is worth choosing when the car is equipped with 18-inch wheels and the goal is to compare performance-oriented tire series without moving away from the proper wheel diameter.
245/45R17 is a metric radial size that uses a 245-millimeter nominal section width, a 45-series profile, and a 17-inch rim diameter. For the 2011 Audi A6, it represents the 17-inch radial fitment and gives buyers several ways to stay within the correct size while comparing tire character. BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac all appear in this size, and sidewall choices include blackwall, redline, and raised white letter styles. It is the right size to evaluate when the car has 17-inch wheels and the decision centers on tire series, appearance, and wheel-width compatibility rather than changing overall fitment direction.
255/35R19 is a metric radial size with a 255-millimeter nominal section width, a 35-series profile, and a 19-inch rim diameter. On the 2011 Audi A6, this size belongs to the 19 Inch Option and reflects the most aggressive wheel package among the primary fitments. Available products in this size come from BFGoodrich across g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A lines, all in blackwall form. This fitment deserves close attention when the car wears 19-inch wheels, since selecting within the correct size still means checking wheel width and the intended balance between appearance and road use.
Tire fitment for the 2011 Audi A6 varies by sub-model and wheel package rather than following one size across the board. Checking the exact 3.0T configuration matters first, because the covered fitments span 17-inch, 18-inch, and 19-inch wheel diameters.
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2011 Audi A6 3.0T
The 2011 Audi A6 3.0T uses either 245/45R17 or 245/40R18 radial tires, so wheel diameter has to be confirmed before choosing a replacement. Once the wheel size is settled, the decision shifts to tire series, sidewall treatment, and the kind of street or specialty use the car will see.
The 2011 Audi A6 3.0T (19 Inch Option) uses the 255/35R19 radial fitment, making it distinct from the 17-inch and 18-inch 3.0T setups. Tire selection here is more focused, with blackwall performance-oriented choices that should be matched carefully to the existing wheel package.
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 2011 Audi A6 Tires for Sale
Available 2011 Audi A6 tire choices vary by size, brand, series, and sidewall treatment. BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac appear across the 17-inch and 18-inch fitments, while the 19-inch option centers on blackwall BFGoodrich performance radials.
Common 2011 Audi A6 tire questions usually come down to identifying the right size for the exact wheel package, understanding the 3.0T fitment differences, and comparing available radial tire styles, brands, and maintenance checks before road use.
Tire Size & Fitment
What tire size fits a 2011 Audi A6?
The 2011 Audi A6 uses three primary tire sizes: 245/45R17, 245/40R18, and 255/35R19. The 3.0T uses either 245/45R17 or 245/40R18, while the 3.0T with the 19 Inch Option uses 255/35R19. All of these are radial fitments.
The important next step is matching the tire to the wheel package already on the car. A6 models in this range do not all use the same rim diameter, so checking the actual wheel before choosing a tire is more important than assuming fitment from the model name alone.
What size rim does a 2011 Audi A6 use?
A 2011 Audi A6 can use 17-inch, 18-inch, or 19-inch rims depending on the specific sub-model and wheel package. The 245/45R17 size uses a 17-inch rim, 245/40R18 uses an 18-inch rim, and 255/35R19 uses a 19-inch rim.
That rim diameter must match the tire exactly, so it is the first thing to verify before comparing brands or sidewall styles. If the car has changed hands or has aftermarket wheels, checking the wheel itself helps avoid ordering a tire that matches the model year but not the actual setup.
Why does the 2011 Audi A6 have more than one tire size?
The 2011 Audi A6 has more than one tire size because fitment changes with the 3.0T wheel package. Standard 3.0T applications use either 245/45R17 or 245/40R18, while the 3.0T with the 19 Inch Option moves to 255/35R19. Those are separate primary fitments rather than interchangeable choices.
This means the best starting point is not the tire brand but the exact wheel diameter on the car. Once that is confirmed, the selection process becomes much easier, since the available tires can then be compared within the proper size instead of trying to move between different wheel packages.
Choosing the Right Tire
What should I consider when choosing a tire for a 2011 Audi A6?
Start with the exact tire size and rim diameter already on the car, since the 2011 Audi A6 uses 245/45R17, 245/40R18, or 255/35R19 depending on configuration. After that, compare construction, tire series, sidewall style, and any useful product details such as rim-width range or load figure where shown.
The right choice depends on how the A6 is used and how the owner wants it to look. A blackwall performance radial gives a different presentation than a redline or raised white letter option, and specialty uses such as drag-oriented tires should be separated from normal street replacement decisions.
What sidewall styles are available for 2011 Audi A6 tires?
Sidewall styles for the 2011 Audi A6 include blackwall, redline, and RWL, depending on tire size. The 17-inch and 18-inch fitments offer the widest visual variety, while the 255/35R19 fitment is represented here by blackwall tires only.
That makes sidewall style an appearance decision after the correct size is confirmed. Buyers trying to keep a restrained modern look may prefer blackwall, while redline or raised white letter choices create a more customized presentation without changing the vehicle's underlying tire size or radial construction.
What brands offer tires for the 2011 Audi A6?
Tires for the 2011 Audi A6 are available here from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, depending on size. The 17-inch and 18-inch fitments have the broadest brand mix, while the 19-inch fitment is centered on BFGoodrich offerings.
Brand alone should not be the only filter. It helps more to compare which series each brand offers in the correct size, whether the sidewall style suits the car, and whether the wheel-width specification lines up with the actual wheels already installed on the A6.
Restoration & Appearance
Which tire should I choose for a period-style 2011 Audi A6?
A period-style 2011 Audi A6 still starts with the correct modern radial size for the car's wheel package: 245/45R17, 245/40R18, or 255/35R19. Once the size is settled, the appearance decision usually comes down to whether the car should retain a clean blackwall presentation or use a more customized sidewall style available in some sizes.
Because this is a modern executive sedan rather than an earlier restoration-era classic, period-style usually means staying visually consistent with the car's original character instead of chasing a vintage look. Matching the existing wheel diameter and keeping proportions appropriate to the chassis matter more than selecting a decorative sidewall alone.
How does tire construction affect the appearance of a restored 2011 Audi A6?
On the 2011 Audi A6, the primary fitments are radial, so construction does not involve a bias-ply-versus-radial appearance decision. The visual difference comes more from the tire's profile, sidewall styling, and whether the car uses the 17-inch, 18-inch, or 19-inch wheel package.
That means appearance planning should focus on preserving the proper relationship between wheel diameter and tire size. A car kept close to its original character will usually look most coherent when the chosen tire matches the existing package and the sidewall treatment supports the overall presentation rather than overpowering it.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2011 Audi A6?
Yes, modifications can affect tire fitment on a 2011 Audi A6 even when the tire size itself is correct for a stock wheel package. Aftermarket wheels, altered wheel widths, suspension changes, or lowered ride height can all change how a 245/45R17, 245/40R18, or 255/35R19 tire sits in the car.
That is why the actual setup should be checked before replacement, especially on a used or modified car. Wheel diameter is only part of the equation; width, offset, and available clearance at the fender and steering range all matter when the goal is trouble-free road use.
What should I inspect before driving a 2011 Audi A6 on new tires?
Before driving a 2011 Audi A6 on new tires, inspect the wheels for correct diameter and condition, confirm the chosen tire size matches the car's setup, and make sure inflation is set appropriately for the tire being installed. A quick visual check for rubbing points and obvious suspension issues is also worthwhile.
New tires work best when the surrounding hardware is in good order. Uneven wear, steering pull, vibration, or visible clearance problems should be addressed early, since they can shorten tire life and change how the A6 feels on the road even when the replacement tire size is correct.
How often should tires on a 2011 Audi A6 be inspected?
Tires on a 2011 Audi A6 should be inspected regularly rather than only at replacement time. Look over the tread and sidewalls for cuts, bulges, cracking, irregular wear, or signs of air loss, and pay attention to changes in ride quality that may point to inflation or alignment issues.
Routine checks matter even more if the car sees seasonal use or sits for long periods. Low-use vehicles can still age their tires, so keeping an eye on condition, pressure stability, and stored-vehicle wear patterns helps protect both the tire investment and the way the A6 drives.
