The 2008 Audi A4 Quattro sits in the late B7 era, a generation appreciated for its balanced mix of everyday refinement, all-weather confidence, and sharp European road manners. Buyers often approach this car with one practical tire question first: which wheel and tire package is actually on the car. The 2008 Audi A4 Quattro uses three primary radial sizes—215/55R16, 235/45R17, and 235/40R18—depending on sub-model and wheel setup. That means the choice is less about bias-ply versus radial and more about confirming the exact configuration, then comparing available brands, tread series, and sidewall presentation where applicable. A careful match keeps the car's stance, clearance, and intended driving character in line with its setup.
Which Tire Size Is Right for The 2008 Audi A4 Quattro
Three primary tire sizes apply to the 2008 Audi A4 Quattro, and they vary by sub-model and wheel diameter. The first step is identifying the exact version of the car and confirming whether it is equipped with 16-inch, 17-inch, or 18-inch wheels. Once that is settled, the decision shifts to comparing the available radial tire options within the correct size, including tread series, brand selection, and sidewall style.
A 215/55R16 tire is a metric radial size with a 215 millimeter nominal section width, a 55-series profile, radial construction, and fitment for a 16-inch wheel. On the 2008 Audi A4 Quattro, this size is part of the smaller-wheel radial fitment used on certain sub-models rather than across the full range. Available choices include blackwall, redline, and wide whitewall presentations from BFGoodrich and American Classic, with both performance-oriented and appearance-focused series represented. This size is worth evaluating carefully if the car still uses its 16-inch wheel package and the goal is either a standard modern look or a more distinctive custom 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
A 235/45R17 tire is a metric radial with a 235 millimeter nominal section width, a 45-series profile, radial construction, and a 17-inch rim diameter. For the 2008 Audi A4 Quattro, this is the most broadly shared size across the covered sub-model range, making it a common fitment when the car carries 17-inch wheels. Product choices in this size are blackwall radials from BFGoodrich and Nitto, including g-Force Sport Comp 2, g-Force Comp 2 AS, and NT555 G2 series. It is a practical size to compare closely when the car is driven regularly and the owner wants to sort through different modern radial personalities without changing wheel diameter.
A 235/40R18 tire uses the same 235 millimeter nominal width as the 17-inch option, but with a lower 40-series profile and fitment for an 18-inch wheel. On the 2008 Audi A4 Quattro, this size belongs to selected sub-model and wheel combinations rather than the entire lineup. Available tires are blackwall radials 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 size should be chosen only after confirming the car's actual 18-inch wheel setup, since the correct rim diameter is the first requirement before comparing tire series.
Tire fitment for the 2008 Audi A4 Quattro depends on the exact sub-model and wheel package rather than following one universal size. Checking the specific 2.0T, 3.2, Avant, or Cabriolet configuration is the clearest way to narrow the correct rim diameter and tire size before comparing products.
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2008 Audi A4 Quattro 2.0T
The 2008 Audi A4 Quattro 2.0T uses radial tire fitments in either 215/55R16 or 235/45R17. Tire selection starts with confirming whether the car has the 16-inch or 17-inch wheel setup, then comparing the available product styles and series within that exact size.
The 2008 Audi A4 Quattro 3.2 uses radial tire fitments in either 235/45R17 or 235/40R18. That makes wheel confirmation especially important, because both sizes are modern metric radials but they fit different rim diameters and lead to different product choices.
The 2008 Audi A4 Quattro Avant 2.0T shares the same radial tire-size pattern as the 2.0T sedan, using either 215/55R16 or 235/45R17. The main buying decision is confirming the installed wheel size and then choosing among the available tire series and sidewall treatments in that fitment.
The 2008 Audi A4 Quattro Avant 3.2 uses either 235/45R17 or 235/40R18 radial tires. Buyers should confirm which wheel package is on the car first, since the move from 17-inch to 18-inch wheels changes the correct tire size and the product assortment that can be considered.
The 2008 Audi A4 Quattro Cabriolet 2.0T uses radial tire sizes 215/55R16 or 235/45R17. Selecting the right tire begins with verifying the actual wheel diameter on the car, then comparing whether a blackwall performance radial or a more appearance-driven sidewall style suits the setup.
The 2008 Audi A4 Quattro Cabriolet 3.2 uses either 235/45R17 or 235/40R18 in radial construction. The important distinction is not tire construction but exact wheel diameter, since the correct product range depends on whether the car is running 17-inch or 18-inch wheels.
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 2008 Audi A4 Quattro Tires for Sale
Available 2008 Audi A4 Quattro tire choices center on modern radial products from BFGoodrich, American Classic, and Nitto. Depending on size, the product grid includes blackwall performance-oriented series, plus redline and wide whitewall options in 215/55R16 for a more customized look.
Owners of a 2008 Audi A4 Quattro usually need to sort out size, wheel diameter, and sub-model fitment before choosing among the available radial tires. These FAQs focus on exact tire sizing, product selection, appearance choices, and the checks that matter before road use.
Tire Size & Fitment
What tire size fits a 2008 Audi A4 Quattro?
The 2008 Audi A4 Quattro uses three primary radial tire sizes: 215/55R16, 235/45R17, and 235/40R18. The correct one depends on the exact sub-model and wheel package, not just the model name alone. Across the covered range, both sedan, Avant, and Cabriolet versions can share a size, but not every version uses all three.
The most important next step is confirming the actual wheel diameter on the car and matching it to the proper size. A 16-inch wheel takes 215/55R16, a 17-inch wheel takes 235/45R17, and an 18-inch wheel takes 235/40R18. If the car has been changed from its original wheel setup, measure the installed wheels before choosing a tire.
What size rim does a 2008 Audi A4 Quattro use?
A 2008 Audi A4 Quattro can use 16-inch, 17-inch, or 18-inch rims, depending on sub-model and wheel package. Those rim diameters correspond to 215/55R16, 235/45R17, and 235/40R18 tire sizes. All of these are modern radial fitments, but they are not interchangeable across different wheel diameters.
Rim diameter should be checked before anything else because the tire must match the wheel's bead seat size. Wheel width also matters once the correct diameter is confirmed, especially when comparing product specifications within the same tire size. If the car has aftermarket wheels, verify both the marked size and the actual installed wheel dimensions before selecting tires.
Do all 2008 Audi A4 Quattro sub-models use the same tire size?
No. The 2008 Audi A4 Quattro lineup does not use one universal tire size across every sub-model. The 2.0T versions use either 215/55R16 or 235/45R17, while the 3.2 versions use either 235/45R17 or 235/40R18. That means the 17-inch fitment is shared broadly, but the 16-inch and 18-inch sizes are tied to specific configurations.
This matters because choosing by model name alone can lead to the wrong rim diameter. Checking whether the car is a 2.0T or 3.2, and whether it is a sedan, Avant, or Cabriolet, helps narrow the fitment quickly. The safest approach is to confirm the exact sub-model and the wheel size currently on the vehicle before comparing tire options.
Choosing the Right Tire
What should I consider when choosing a tire for a 2008 Audi A4 Quattro?
Start with the exact tire size and matching wheel diameter for the car's sub-model and wheel package. On a 2008 Audi A4 Quattro, that means choosing among 215/55R16, 235/45R17, or 235/40R18, all in radial construction. Once the fitment is confirmed, the meaningful differences are brand, tire series, sidewall presentation, and the rim-width specifications attached to each product.
A car driven regularly may push the decision toward modern blackwall performance-oriented series, while a more appearance-driven build may focus on sidewall styling where available. Weight and load figures can also help separate one product from another within the same size. The strongest comparison comes after the wheel setup is verified and the car's intended use is clear.
What sidewall styles are available for 2008 Audi A4 Quattro tires?
Sidewall style depends on tire size. Blackwall is available across the 17-inch and 18-inch fitments, while the 215/55R16 size also includes redline and wide whitewall options through American Classic. That gives the 16-inch fitment a broader appearance range than the larger-wheel sizes, which stay focused on a modern blackwall presentation.
The right sidewall choice depends on how the car is being presented. A blackwall suits a contemporary, performance-oriented look, while redline or wide whitewall creates a more distinctive custom appearance. Since sidewall styles are not spread evenly across all three fitments, confirm the wheel diameter first and then compare the appearance options actually available in that exact size.
What brands offer tires for the 2008 Audi A4 Quattro?
Tires for the 2008 Audi A4 Quattro are available from BFGoodrich, American Classic, and Nitto, depending on size. BFGoodrich appears across all three primary sizes, Nitto is available in the 17-inch and 18-inch fitments, and American Classic appears in 215/55R16. The available series include g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, NT555 G2, and Asymmetrical Tread.
Brand alone should not drive the decision ahead of fitment. Compare the correct size first, then look at what each brand offers in sidewall style, tire series, rim-width specification, and load details where those figures are given. That approach makes it easier to choose a tire that matches the wheel package and the look or driving use planned for the car.
Restoration & Appearance
Which tire should I choose for a period-style 2008 Audi A4 Quattro?
A period-style approach starts with using the correct tire size for the exact 2008 Audi A4 Quattro sub-model and wheel diameter. Since this car uses modern radial sizes, the visual decision is less about vintage construction and more about whether the car should keep a contemporary blackwall look or take on a more customized presentation where that option exists.
The 215/55R16 fitment offers the widest appearance range because it is available in blackwall, redline, and wide whitewall styles. The 17-inch and 18-inch sizes stay within blackwall performance-oriented options. For buyers pursuing a very specific factory-era appearance, marque references and original vehicle documentation are still the best way to confirm what presentation best matches the car.
Which sidewall style suits a period-style 2008 Audi A4 Quattro?
For most 2008 Audi A4 Quattro applications, blackwall is the most natural sidewall presentation because it is available in all three primary sizes and aligns with the car's modern sport-sedan era. Redline and wide whitewall become options only in 215/55R16, making them more of a styling choice than a universal fitment theme across the model range.
Choosing the right sidewall depends on the car's purpose and wheel setup. A blackwall keeps the look restrained and contemporary, while redline or wide whitewall pushes the 16-inch fitment toward a more individualized custom appearance. Since sidewall style is tied to size availability, the wheel diameter should be confirmed before appearance becomes the deciding factor.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2008 Audi A4 Quattro?
Yes. Modifications can change what fits a 2008 Audi A4 Quattro even when the tire size looks close on paper. Aftermarket wheels, changes in wheel width, offset differences, lowered suspension, and body or fender alterations can all affect clearance at the strut, fender lip, and steering range. That matters most on cars moving away from their original wheel package.
A modified car should be checked as it sits, not only by model year and name. Confirm the installed wheel diameter and width first, then make sure the selected tire size matches that setup. Full-lock steering clearance, suspension travel, and visible room around the tire are all worth inspecting before committing to a new set.
What should I inspect before driving a 2008 Audi A4 Quattro on new tires?
Before road use, inspect the wheel and tire package for correct size, proper inflation, secure mounting, and even bead seating. Check that the tires clear the suspension and bodywork through the steering range, especially if the car uses 17-inch or 18-inch wheels or has any wheel or suspension changes. Lug torque and valve condition also deserve attention.
A short test drive should be followed by another look at air pressure and any signs of rubbing. It also helps to watch for vibration, pull, or uneven contact that could point to alignment or wheel issues. On a car that has spent time parked, a general inspection of brakes, bushings, and suspension condition is just as important as the tire installation itself.
How should tires on a 2008 Audi A4 Quattro be maintained?
Tires on a 2008 Audi A4 Quattro should be maintained with regular pressure checks, visual inspections, and attention to tread wear patterns. Watch for cracking, cuts, bulges, punctures, and uneven wear that could signal inflation or alignment issues. Because this car uses size-specific wheel packages, keeping the correct tire size on each wheel is part of routine maintenance too.
Low-use cars still need tire care even when tread looks good. Air loss, age, and long stationary periods can affect condition before mileage does. Storage away from prolonged sunlight, excess heat, and ozone sources helps preserve the tires, and any car that has sat for an extended period should have its tires and general running gear inspected before a longer drive.
