The 2009 Audi A4 Quattro sits in the era when Audi's compact luxury sedan, wagon, and cabriolet lineup balanced all-weather confidence with sharper road manners and a more modern chassis feel. Buyers looking at one today are often trying to preserve that composed Quattro character while matching the car's exact wheel setup. This model uses radial tire fitments in 215/55R16, 235/45R17, and 235/40R18 depending on sub-model and wheel diameter. The main choice is less about vintage construction and more about selecting the correct size, then comparing blackwall performance-oriented options against period-inspired redline or wide whitewall offerings in 16-inch form. Wheel diameter and exact sub-model should be confirmed before choosing a replacement.
Which Tire Size Is Right for The 2009 Audi A4 Quattro
The 2009 Audi A4 Quattro uses three primary tire sizes, and the correct one depends on both sub-model and wheel diameter. Some versions share 235/45R17, while others use either 215/55R16 or 235/40R18, so the first step is confirming the exact sub-model and whether the car is on 16-inch, 17-inch, or 18-inch wheels before comparing tire choices.
The 215/55R16 size reads as a 215-millimeter section width, a 55-series aspect ratio, radial construction, and fitment on a 16-inch rim. On the 2009 Audi A4 Quattro, this is a modern radial size used on certain 2.0T sedan, Avant, and Cabriolet applications. Product choices in this size include blackwall, redline, and wide whitewall treatments, with options from BFGoodrich and American Classic across performance and asymmetrical-tread styles. This size is worth choosing when the car retains its 16-inch wheel setup and the goal is to balance proper fitment with either a contemporary or more distinctive visual presentation.
Fit(s): 2.0T, 3.2, Avant 2.0T, Avant 3.2, Cabriolet 2.0T, and Cabriolet 3.2
Construction: Radial|Rim: 17 in
The 235/45R17 size uses a 235-millimeter section width, a 45-series profile, radial construction, and a 17-inch rim diameter. For the 2009 Audi A4 Quattro, it is the shared fitment that appears across both 2.0T and 3.2 variants, including sedan, Avant, and Cabriolet versions. Available choices center on blackwall tires from BFGoodrich and Nitto, with series such as g-Force Sport Comp 2, g-Force Comp 2 AS, and NT555 G2 offering different product character within the same fitment. This is the size to evaluate when the car is equipped with 17-inch wheels and the owner wants the broadest overlap across sub-model coverage.
The 235/40R18 code indicates a 235-millimeter width, a lower 40-series profile, radial construction, and fitment on an 18-inch wheel. On the 2009 Audi A4 Quattro, this size is used on certain 3.2 sedan, Avant, and Cabriolet configurations rather than across the full model range. Available tires are blackwall designs from BFGoodrich and Nitto, with series including g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. This fitment deserves careful attention when replacing tires on an 18-inch setup because wheel size, profile, and intended driving use all shape the best final choice.
Tire fitment for the 2009 Audi A4 Quattro varies by sub-model, mainly between 2.0T and 3.2 applications and their corresponding wheel diameters. Checking the exact sedan, Avant, or Cabriolet configuration matters before selecting a tire, since some versions share 17-inch fitment while others use 16-inch or 18-inch sizes.
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2009 Audi A4 Quattro 2.0T
The 2009 Audi A4 Quattro 2.0T uses 16-inch or 17-inch radial tire fitment rather than the 18-inch size found on certain 3.2 models. That makes wheel confirmation the key step, followed by choosing between a straightforward blackwall replacement or, in 16-inch form, a more appearance-driven redline or whitewall option.
The 2009 Audi A4 Quattro 3.2 uses 17-inch or 18-inch radial tire fitment, with the lower-profile 235/40R18 setup appearing here instead of on the 2.0T versions. Tire selection should start with wheel diameter, then move to the preferred series and road-use character within the available blackwall choices.
The 2009 Audi A4 Quattro Avant 2.0T follows the same 16-inch or 17-inch radial fitment pattern as the 2.0T sedan and Cabriolet. Owners should confirm which wheel package is actually on the car, then decide whether the priority is a conventional blackwall look or a more distinctive 16-inch sidewall treatment.
The 2009 Audi A4 Quattro Avant 3.2 shares the 17-inch and 18-inch radial fitment pattern used by the 3.2 sedan and Cabriolet. The practical decision is confirming whether the car wears 17s or 18s, then comparing the available blackwall tire series that match the wagon's current wheel setup.
The 2009 Audi A4 Quattro Cabriolet 2.0T uses the same 16-inch or 17-inch radial fitment range seen on the other 2.0T versions. Tire choice begins with the actual wheel diameter on the car and can extend to appearance preferences, especially where 16-inch redline and wide whitewall options are available.
The 2009 Audi A4 Quattro Cabriolet 3.2 uses 17-inch or 18-inch radial tire sizes rather than the 16-inch fitment associated with 2.0T versions. Selecting the right replacement means verifying which wheel package is installed first, then comparing the available blackwall tires by series, profile, and wheel-width compatibility.
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 2009 Audi A4 Quattro Tires for Sale
Available 2009 Audi A4 Quattro tire choices span 16-inch, 17-inch, and 18-inch radial fitments from BFGoodrich, American Classic, and Nitto. The main differences are tire series, blackwall versus redline or wide whitewall appearance in 16-inch sizes, and rim-width compatibility across the larger wheel options.
These FAQs focus on the exact tire sizes used on the 2009 Audi A4 Quattro, how fitment changes by sub-model and wheel diameter, and how to compare available radial tires by size, sidewall style, and intended use.
Tire Size & Fitment
What tire size fits a 2009 Audi A4 Quattro?
The 2009 Audi A4 Quattro uses three primary tire sizes: 215/55R16, 235/45R17, and 235/40R18. The correct size depends on the exact sub-model and wheel package, with 235/45R17 appearing across multiple versions, while 215/55R16 is tied to certain 2.0T applications and 235/40R18 to certain 3.2 applications.
Finding the right replacement starts with the car's actual wheel diameter, not just the model name on the trunk. A sedan, Avant, or Cabriolet may share one size or use another, and many cars of this age may have been changed to different factory-style or aftermarket wheels over time.
What size rim does a 2009 Audi A4 Quattro use?
The 2009 Audi A4 Quattro uses 16-inch, 17-inch, or 18-inch rims depending on the tire size installed. A 215/55R16 tire belongs on a 16-inch rim, a 235/45R17 tire belongs on a 17-inch rim, and a 235/40R18 tire belongs on an 18-inch rim.
Rim diameter should be confirmed from the wheel itself before ordering tires, especially on a car that may no longer wear its original wheel package. Diameter is only the first checkpoint, though, because wheel width also matters when comparing products within the same tire size.
Why does the 2009 Audi A4 Quattro have more than one tire size?
More than one tire size appears on the 2009 Audi A4 Quattro because fitment varies by sub-model and wheel setup. Some 2.0T versions use 215/55R16 or 235/45R17, while some 3.2 versions use 235/45R17 or 235/40R18, so the overlap is not identical across the range.
That variation means the model name alone is not enough to choose a tire. Checking whether the car is a sedan, Avant, or Cabriolet, along with the wheel diameter currently on the vehicle, prevents ordering a tire that matches the platform generally but not the exact setup on that particular car.
Choosing the Right Tire
What should I consider when choosing a tire for a 2009 Audi A4 Quattro?
Start with the exact tire size and wheel diameter used on the car: 215/55R16, 235/45R17, or 235/40R18. From there, compare radial tire options by construction details, rim-width compatibility, sidewall style, and the type of product character you want, whether that means a sport-focused blackwall or a more appearance-driven 16-inch treatment.
The best choice depends on how the Audi is actually used and how closely it matches its current wheel package. A daily-driven sedan, a seasonal Cabriolet, and an Avant kept for enthusiast use may all point to different priorities even when the tire size itself is correct.
What sidewall styles are available for 2009 Audi A4 Quattro tires?
Sidewall style depends on size. Blackwall options are available across the 17-inch and 18-inch fitments, while the 16-inch 215/55R16 size also opens the door to redline and wide whitewall choices in addition to a blackwall performance tire.
That makes the 16-inch fitment the most flexible if appearance is part of the buying decision. Owners who want the cleanest contemporary presentation may stay with blackwall, while those building a more individualized look can consider redline or wide whitewall without changing the basic tire size.
What brands offer tires for the 2009 Audi A4 Quattro?
Tires for the 2009 Audi A4 Quattro are available from BFGoodrich, American Classic, and Nitto, depending on size. BFGoodrich appears across all three fitments, Nitto is available in the 17-inch and 18-inch sizes, and American Classic is available in the 16-inch size.
Brand matters mainly as part of a larger comparison that includes the exact size, series, sidewall style, and wheel-width compatibility. The useful approach is to narrow the car to the correct fitment first, then compare the available products within that size instead of choosing by brand name alone.
Restoration & Appearance
Which tire should I choose for a period-style 2009 Audi A4 Quattro?
A period-style choice for a 2009 Audi A4 Quattro starts with keeping the correct original fitment family for the car's wheel diameter, then choosing a tire that matches the visual direction of the build. On 16-inch applications, that can mean considering blackwall, redline, or wide whitewall options within 215/55R16.
A more standard late-2000s presentation usually points toward blackwall tires, especially on 17-inch and 18-inch setups. If historical accuracy matters beyond general period feel, the next step is to compare the car against marque references, original sales material, or build-specific documentation before settling on a sidewall style.
How does tire construction affect the appearance of a restored 2009 Audi A4 Quattro?
On the 2009 Audi A4 Quattro, the primary fitments are radial tires, so construction does not involve a bias-ply-versus-radial visual decision. The bigger appearance differences come from profile, wheel diameter, and sidewall treatment, especially in 16-inch form where redline and wide whitewall options are available alongside blackwall.
That means a restored or carefully presented car can look noticeably different even while staying within the proper size range. A lower-profile 18-inch setup reads more modern and aggressive, while a 16-inch tire with a specialty sidewall creates a more customized visual statement without changing the underlying radial construction.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Audi A4 Quattro?
Yes. A 2009 Audi A4 Quattro may have wheel, suspension, or ride-height changes that affect which tire size works on the car today, even if the chassis originally used one of the standard sizes. Aftermarket wheels can alter width and offset, and suspension changes can influence clearance under load or during steering travel.
That is why the current setup should be checked before replacing tires by vehicle lookup alone. Measuring the actual wheel diameter and width, then inspecting fender and suspension clearance, helps avoid choosing a tire that matches the model range generally but conflicts with the car's present configuration.
What should I inspect before driving a 2009 Audi A4 Quattro on new tires?
Before road use, inspect wheel condition, valve stems, lug hardware, alignment condition, and the overall state of the suspension and steering components. The new tires themselves should be checked for proper inflation, bead seating, and clearance at full steering lock, especially if the car uses larger wheels or a lower ride height.
A short test drive should follow with attention to vibration, rubbing, pulling, or uneven response. On an older Audi that may have seen wheel changes over time, this final check matters just as much as choosing the correct printed size because fitment issues often show up only once the car is rolling.
How often should tires on a 2009 Audi A4 Quattro be inspected?
Tires on a 2009 Audi A4 Quattro should be inspected regularly, with quick visual checks before driving and more thorough inspection intervals throughout the year. Look for uneven tread wear, cuts, bulges, sidewall cracking, embedded debris, and gradual air loss, since all of these can appear long before a tire is obviously worn out.
Cars that are driven infrequently deserve even closer attention because age and storage conditions can matter as much as mileage. A Quattro car also benefits from staying closely matched side to side and axle to axle, so keeping an eye on wear pattern and inflation helps preserve both fitment consistency and road manners.
