The 2011 Audi A5 Quattro sits in the modern grand-touring part of Audi’s lineup, blending coupe and cabriolet style with the year-round traction expected from the Quattro name. On a car like this, tire choice affects not only appearance but also steering response, ride quality, and how the chassis feels on the road. This A5 Quattro uses radial tires, with fitment centered on either 245/40R18 or 255/35R19 depending on the wheel setup. Available options range from blackwall performance-oriented tires to redline and raised white letter alternatives in 18-inch form. The key is confirming which wheel diameter is on the car before choosing the right tire character.
Which Tire Size Is Right for The 2011 Audi A5 Quattro
The 2011 Audi A5 Quattro uses two primary tire sizes, and the first thing to confirm is whether the car has 18-inch or 19-inch wheels. Both sizes are radial fitments and both appear on the Base and Cabriolet, so the real decision starts with wheel diameter, then moves to tire style, series, and the kind of road use the car will see.
245/40R18 is a metric radial size in which 245 identifies the nominal section width in millimeters, 40 is the aspect ratio, and 18 is the wheel diameter in inches. On the 2011 Audi A5 Quattro, this size supports a modern low-profile radial setup that suits the car’s responsive touring character. Product choices in this size include BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, with blackwall, redline, and raised white letter sidewall treatments depending on the series. It is the size to evaluate when the car is equipped with 18-inch wheels and you want the broadest mix of appearance and use-oriented options.
255/35R19 is a metric radial size that uses a wider 255-millimeter section width, a 35-series profile, and a 19-inch wheel diameter. For the 2011 Audi A5 Quattro, it represents the 19-inch fitment and keeps the selection focused on modern radial performance tires. Available choices in this size come from BFGoodrich and center on blackwall designs across g-Force series offerings. This size deserves close attention when the car has 19-inch wheels, since wheel diameter, wheel width, and the intended driving character all matter before choosing among the available tires.
Fitment is straightforward across the covered 2011 Audi A5 Quattro sub-models because both the Base and Cabriolet use the same two tire sizes. The important step is not choosing between sub-model-only sizes, but confirming whether the car is running 18-inch or 19-inch wheels before selecting a tire.
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2011 Audi A5 Quattro Base
The 2011 Audi A5 Quattro Base uses the same 245/40R18 and 255/35R19 radial fitments seen across this vehicle range. That means tire selection comes down to the actual wheel diameter on the car, then to the preferred tire series, sidewall treatment, and overall driving use.
The 2011 Audi A5 Quattro Cabriolet also uses 245/40R18 and 255/35R19 radial tire sizes. The main task is verifying the wheel setup already on the car, then choosing the tire that best matches the cabriolet’s mix of appearance, road use, and wheel 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 2011 Audi A5 Quattro Tires for Sale
Available 2011 Audi A5 Quattro tire choices span 18-inch and 19-inch radial fitments, with BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac represented. Buyers can compare blackwall options across several performance-oriented series, while 245/40R18 also includes redline and raised white letter sidewall alternatives.
These FAQs focus on the exact tire sizes used on the 2011 Audi A5 Quattro, how the 18-inch and 19-inch setups differ, and what to consider when comparing radial tire options, sidewall styles, wheel fitment, and road-use readiness.
Tire Size & Fitment
What tire size fits a 2011 Audi A5 Quattro?
The 2011 Audi A5 Quattro uses two primary tire sizes: 245/40R18 and 255/35R19. Both are radial fitments, and both apply to the Base and Cabriolet versions of the car rather than being limited to one sub-model only.
The deciding factor is the wheel diameter currently on the car. An A5 Quattro with 18-inch wheels needs the 245/40R18 fitment, while a car with 19-inch wheels needs 255/35R19. Before choosing a tire, confirm the actual wheel size and check that the wheel width matches the tire’s intended application.
What size rim does a 2011 Audi A5 Quattro use?
A 2011 Audi A5 Quattro uses either an 18-inch or 19-inch rim, depending on which of its two tire sizes is on the car. The 245/40R18 fitment uses an 18-inch rim, and the 255/35R19 fitment uses a 19-inch rim.
Because both wheel diameters appear on this model, it is important not to select a tire by appearance alone. Check the wheel itself or read the full tire size already mounted on the car. Matching tire diameter to wheel diameter is the first fitment step before comparing series, sidewall style, or other tire characteristics.
Do all 2011 Audi A5 Quattro sub-models use the same tire size?
The Base and Cabriolet versions of the 2011 Audi A5 Quattro share the same two tire-size options: 245/40R18 and 255/35R19. In that sense, fitment is consistent across the covered sub-models, with no separate size split between the two body styles.
That does not mean every individual car has both sizes mounted at the same time. The actual tire you need still depends on whether the car is equipped with 18-inch or 19-inch wheels. Verifying the wheel setup on the vehicle is more important here than identifying the sub-model name alone.
Choosing the Right Tire
What should I consider when choosing a 245/40R18 tire for a 2011 Audi A5 Quattro?
A 245/40R18 tire for the 2011 Audi A5 Quattro should first match the car’s 18-inch wheel setup, then be narrowed by intended use and tire character. Available choices include blackwall performance-oriented designs, a drag-focused radial, and 18-inch redline or raised white letter alternatives.
It helps to compare the tire series and any rim-width guidance attached to the product, especially if the car has aftermarket wheels. Appearance matters too, since a blackwall presentation gives a different look than a redline or RWL tire. That combination of wheel compatibility, use, and style usually decides the best match.
What sidewall styles are available for 2011 Audi A5 Quattro tires?
Sidewall style depends on the tire size chosen for the 2011 Audi A5 Quattro. Blackwall options are available in both 245/40R18 and 255/35R19, while the 245/40R18 fitment also includes redline and RWL, or raised white letter, alternatives.
That means sidewall appearance is part of the selection process, especially on 18-inch cars where there is more visual variety. A traditional blackwall usually keeps the look understated, while redline or raised white letter tires add a more customized presentation. The correct size and wheel diameter still come first before making an appearance-driven choice.
What brands offer tires for the 2011 Audi A5 Quattro?
Tires for the 2011 Audi A5 Quattro are available from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac. Brand availability depends on size, with the broadest selection appearing in 245/40R18 and a more focused BFGoodrich lineup in 255/35R19.
Choosing between brands is less about picking a winner and more about matching the tire’s intended use and presentation to the car. Some options lean toward performance street driving, one 18-inch option is drag-oriented, and others offer distinctive sidewall treatments. Start with the correct size, then compare the brand’s available series and specifications.
Restoration & Appearance
Which tire should I choose for a period-style 2011 Audi A5 Quattro?
A period-style tire choice for a 2011 Audi A5 Quattro starts with keeping the correct wheel diameter and using the proper primary size, either 245/40R18 or 255/35R19. From there, the 18-inch fitment offers the most appearance flexibility, including blackwall, redline, and raised white letter options.
Because this is a modern-era Audi rather than an earlier collector car, period-style usually means choosing a look that suits the car’s character rather than chasing strict factory originality. Owners who want the closest visual match to original showroom presentation should compare tire appearance with original sales literature, window sticker records, or marque-specific references.
How does tire construction affect the appearance of a restored 2011 Audi A5 Quattro?
Tire construction is straightforward on the 2011 Audi A5 Quattro because both primary fitments are radial. That keeps the visual difference focused less on bias-ply versus radial shape and more on sidewall treatment, tread style, and the overall stance created by the 18-inch or 19-inch wheel setup.
Appearance changes most noticeably in the 245/40R18 size, where blackwall, redline, and raised white letter choices can shift the car from restrained to more expressive. A restoration-minded owner should confirm wheel diameter first, then choose the sidewall style that best matches the intended finish of the car without assuming every available look reflects original delivery.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2011 Audi A5 Quattro?
Yes, modifications can affect tire fitment on a 2011 Audi A5 Quattro even when the tire size itself is correct. Aftermarket wheels, changes in wheel width, offset differences, lowered suspension, or body alterations can all change how a 245/40R18 or 255/35R19 tire sits and clears.
A modified car should be checked for steering clearance, fender clearance, and suspension travel before settling on a replacement tire. The same size can behave differently on a different wheel. Measuring the actual wheel setup already on the car is especially important when the vehicle no longer retains its original-style wheel and suspension configuration.
What should I inspect before driving a 2011 Audi A5 Quattro on new tires?
Before driving a 2011 Audi A5 Quattro on new tires, inspect basic installation and condition items first. Confirm that the tire size matches the wheel diameter, check inflation pressure, look for any mounting damage, and make sure the tire clears suspension, brake, and body components through a full steering sweep.
It is also smart to inspect the wheels themselves for bends or damage and to verify that the alignment and suspension are in sound condition. A fresh set of tires cannot compensate for worn components. A short, careful road test helps confirm there is no rubbing, vibration, or air loss before regular use.
What should I check before a longer drive in a 2011 Audi A5 Quattro?
Before a longer drive in a 2011 Audi A5 Quattro, check tire pressure, tread condition, visible sidewall damage, and any signs of irregular wear. Whether the car uses 245/40R18 or 255/35R19 tires, the basics matter: no bulges, no cuts, and no unexplained air loss.
A longer trip is also a good time to confirm lug torque, inspect for vibration at speed, and make sure the spare or roadside plan matches the car’s wheel setup. On a car that is driven less often, tire age and storage condition deserve extra attention because low mileage alone does not guarantee that an older tire is still road-ready.
