The 2012 Audi A4 Quattro sits in the era when Audi had fully established the A4 as a refined all-weather sport sedan and wagon, balancing sharp road manners with everyday luxury. Quattro all-wheel drive is a major part of that appeal, so tire fitment matters not just for appearance but for how the car puts its capability to work. This model uses radial tires in three fitment sizes: 245/45R17, 245/40R18, and 255/35R19, depending on sub-model and wheel package. Available choices range from blackwall performance-oriented radials to redline and raised white letter options in select sizes. The key is matching the exact sub-model and wheel diameter before choosing the look and driving character you want.
Which Tire Size Is Right for The 2012 Audi A4 Quattro
The 2012 Audi A4 Quattro uses three primary tire sizes, and the right one depends on the exact sub-model and wheel diameter. Both the Base and Avant use either 245/45R17 or 245/40R18, while S Line and Avant S Line use 255/35R19. Before choosing a tire, confirm whether the car is a standard model or S Line and verify that the wheels on the car are still the correct 17-inch, 18-inch, or 19-inch setup.
In 245/40R18, the 245 is the section width in millimeters, 40 is the aspect ratio, R identifies radial construction, and 18 is the wheel diameter in inches. This is a modern radial fitment for certain 2012 Audi A4 Quattro Base and Avant configurations, giving the car a lower-profile 18-inch setup. Available choices include BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, with blackwall, redline, and raised white letter sidewall treatments depending on the tire series. It is the right size to evaluate when the car already wears 18-inch wheels and you want to compare performance-oriented or appearance-driven options within that fitment.
In 245/45R17, the 245 denotes section width in millimeters, 45 is the sidewall profile ratio, R means radial construction, and 17 indicates a 17-inch rim. This size fits certain 2012 Audi A4 Quattro Base and Avant models and represents the 17-inch primary fitment used on those configurations. Product choices include blackwall tires from BFGoodrich, Nitto, and M&H Racemaster, along with Pro-Trac options in redline and raised white letter form. This size deserves attention when keeping a standard-wheel setup in place or when comparing available tire series across a broad range of 17-inch radial choices.
In 255/35R19, the 255 is the tire width in millimeters, 35 is the aspect ratio, R marks radial construction, and 19 identifies the wheel diameter in inches. This is the primary size for the 2012 Audi A4 Quattro S Line and Avant S Line, pairing those sub-models with a 19-inch wheel fitment. Available choices center on BFGoodrich blackwall tires across the g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A series. It is the size to focus on when the car is an S Line configuration and the goal is to stay with the proper 19-inch fitment rather than adapt another wheel diameter.
Sub-model fitment matters on the 2012 Audi A4 Quattro because tire size changes with both trim and wheel package. Base and Avant configurations share the 17-inch and 18-inch sizes, while S Line versions move to a dedicated 19-inch fitment, making exact model identification the first step before comparing tires.
1
2012 Audi A4 Quattro Avant
The 2012 Audi A4 Quattro Avant uses the same primary fitment pattern as the standard Base model, with radial tires in either 245/45R17 or 245/40R18 depending on wheel setup. Tire selection starts with confirming whether the wagon is on 17-inch or 18-inch wheels, then comparing sidewall style and series within that size.
The 2012 Audi A4 Quattro Avant S Line uses the 255/35R19 radial size. That makes wheel confirmation straightforward, and the decision shifts to choosing among the available blackwall performance-oriented tire series built for a 19-inch setup.
The 2012 Audi A4 Quattro Base uses radial tires in either 245/45R17 or 245/40R18, depending on the wheel package on the car. Once the wheel diameter is confirmed, the choice becomes one of tire series, brand, and whether a blackwall, redline, or raised white letter presentation suits the build.
The 2012 Audi A4 Quattro S Line uses the 255/35R19 radial fitment. Tire shopping is simpler once that 19-inch wheel setup is verified, since the focus becomes comparing available BFGoodrich series rather than sorting through multiple primary sizes.
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 2012 Audi A4 Quattro Tires for Sale
Available 2012 Audi A4 Quattro tire choices span 245/45R17, 245/40R18, and 255/35R19, with offerings from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac. Buyers can compare blackwall performance radials across several series, with redline and raised white letter options available in the 17-inch and 18-inch sizes.
Owners of a 2012 Audi A4 Quattro usually need to sort out exact tire size by sub-model and wheel diameter first, then compare radial choices by sidewall style, tire series, and intended use. These questions cover fitment, S Line differences, product selection, and practical checks before road use.
Tire Size & Fitment
What tire size fits a 2012 Audi A4 Quattro?
The 2012 Audi A4 Quattro uses three primary tire sizes: 245/45R17, 245/40R18, and 255/35R19. Base and Avant models use either 245/45R17 or 245/40R18, while S Line and Avant S Line models use 255/35R19.
The important next step is confirming the exact sub-model and the actual wheel diameter on the car. Many A4 Quattro vehicles have changed wheels over time, so the safest approach is to match the tire to the 17-inch, 18-inch, or 19-inch wheel currently installed rather than assuming every 2012 A4 Quattro uses the same size.
What size rim does a 2012 Audi A4 Quattro use?
A 2012 Audi A4 Quattro uses 17-inch, 18-inch, or 19-inch rims depending on the specific sub-model and tire size. The 245/45R17 size fits a 17-inch rim, 245/40R18 fits an 18-inch rim, and 255/35R19 fits a 19-inch rim.
Rim diameter should be verified before looking at brands or tread style because the three primary sizes are tied to three different wheel diameters. It is also worth checking wheel width if the car has aftermarket wheels, since available tires within these sizes carry their own rim-width specifications that can affect safe fitment and tire shape.
Do all 2012 Audi A4 Quattro sub-models use the same tire size?
No. The 2012 Audi A4 Quattro has sub-model variation in tire size. Base and Avant models use either 245/45R17 or 245/40R18, while the S Line and Avant S Line use 255/35R19.
That difference matters because tire selection starts with trim and wheel package, not just the model name. An owner of a standard A4 Quattro shopping for 19-inch tires could easily end up in the wrong fitment category, while an S Line owner should not assume a 17-inch or 18-inch option applies without first confirming that the car has not been modified.
Choosing the Right Tire
What should I consider when choosing a 2012 Audi A4 Quattro tire?
Start with the correct size for the exact sub-model and wheel diameter, since a 2012 Audi A4 Quattro may use 245/45R17, 245/40R18, or 255/35R19. After that, compare construction details within the radial options, along with brand, tire series, sidewall style, and any rim-width or load specification that matters to your setup.
A standard Base or Avant model may leave more room for appearance choices because redline and raised white letter options appear in the 17-inch and 18-inch sizes. An S Line owner using 255/35R19 will be focused more on series selection within blackwall performance-style radials and on confirming the wheel width remains compatible.
What sidewall styles are available for 2012 Audi A4 Quattro tires?
Sidewall choices for the 2012 Audi A4 Quattro include blackwall, redline, and RWL, or raised white letter, depending on the tire size. Blackwall options appear across all three primary sizes, while redline and RWL options are available in 245/45R17 and 245/40R18.
That means sidewall presentation can influence the final choice once the correct size is confirmed. A buyer looking for a cleaner modern appearance may stay with blackwall, while someone building a more custom visual style may prefer redline or raised white letters in the 17-inch or 18-inch fitments where those options are actually offered.
What brands offer tires for the 2012 Audi A4 Quattro?
Tires for the 2012 Audi A4 Quattro are available from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, depending on the size. BFGoodrich appears across all three primary sizes, while Nitto, M&H Racemaster, and Pro-Trac are present in the 245/45R17 and 245/40R18 fitments.
Brand choice is only part of the decision, since each size has its own mix of tire series and sidewall treatments. It helps to compare the intended use of the car as well, because some choices lean toward general street performance while others carry attributes that point toward more specialized use within the same basic size.
Restoration & Appearance
Which tire should I choose for a period-style 2012 Audi A4 Quattro?
A period-style 2012 Audi A4 Quattro choice starts with the original wheel diameter and the correct primary size for the sub-model. For standard Base and Avant configurations, 245/45R17 and 245/40R18 offer the widest appearance range because those sizes include blackwall, redline, and raised white letter options.
The right visual direction depends on whether the goal is a clean factory-inspired look or a more personalized presentation. S Line models use 255/35R19, where the available choices stay in blackwall form, so appearance differences come more from tire series and stance than from contrasting sidewall treatments.
How does tire construction affect the appearance of a restored 2012 Audi A4 Quattro?
On the 2012 Audi A4 Quattro, construction does not create a bias-ply versus radial appearance decision because the primary fitments are radial. The visible appearance difference comes more from size, wheel diameter, and sidewall treatment, especially on the 17-inch and 18-inch sizes where redline and raised white letter options are available.
That makes the finish of the build especially important. A stock-style restoration typically depends on using the correct overall fitment and wheel size first, while a more customized car may use the same primary size with a more expressive sidewall treatment that changes the look without changing the underlying radial construction.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2012 Audi A4 Quattro?
Yes. Modifications can affect tire fitment on a 2012 Audi A4 Quattro even when the tire size itself is correct for the model range. Aftermarket wheels, altered wheel width, suspension lowering, alignment changes, or body modifications can all change clearance and how a 245/45R17, 245/40R18, or 255/35R19 tire sits on the car.
A changed setup should be checked at the wheel, not just by model name. Clearance at the fender, inner suspension points, and steering range all matter, and wheel width deserves special attention because available products in these sizes carry their own approved rim-width ranges that may not suit every modified wheel package.
What should I inspect before driving a 2012 Audi A4 Quattro on new tires?
Before driving a 2012 Audi A4 Quattro on new tires, inspect wheel condition, confirm the tire size matches the wheel diameter, and make sure inflation is set correctly for the application. It is also wise to check for obvious interference at the fender, suspension, and steering stops before putting real road miles on the car.
A short, careful test drive helps confirm there is no rubbing, vibration, or pull that points to a fitment or setup problem. The same inspection should include alignment condition, valve stems, and any signs of uneven wear on the old tires, since those issues can affect how the new radials behave from the first drive.
What should I check before a longer drive in a 2012 Audi A4 Quattro?
Before a longer drive, check tire pressure, tread condition, sidewall condition, and any sign of slow air loss on the 2012 Audi A4 Quattro. Whether the car uses 245/45R17, 245/40R18, or 255/35R19, the tires should also be free of cuts, bulges, and irregular wear that could point to alignment or suspension issues.
A longer trip puts more heat and sustained speed into the tires, so wheel torque, balance, and overall vehicle condition become more important as well. Cars that are driven less often deserve extra attention, since even good-looking tires can age in place, and low-use vehicles sometimes reveal pressure loss or cracking only when inspected closely.
