The 2013 Audi A5 Quattro sits in the modern grand-touring side of Audi’s lineup, blending sharp coupe and cabriolet styling with all-wheel-drive road manners that reward a properly matched tire. For this exact A5 Quattro, the primary fitments are radial sizes 245/40R18 and 255/35R19, so the first step is confirming which wheel diameter is on the car. From there, the choice shifts to tread and sidewall presentation, with blackwall performance options joined by select redline and raised white letter alternatives in 18-inch fitment. Owners focused on everyday road use, a sportier visual statement, or maintaining the car’s intended stance should verify wheel size before choosing.
Which Tire Size Is Right for The 2013 Audi A5 Quattro
The 2013 Audi A5 Quattro uses two primary tire sizes, and the difference starts with wheel diameter: 245/40R18 fits 18-inch wheels, while 255/35R19 fits 19-inch wheels. Both are radial fitments used across the covered Base and Cabriolet models, so the first thing to confirm is which wheel package is actually on the car. Once that is settled, the decision becomes choosing the right tire series, sidewall style, and road-use character within the correct size.
245/40R18 is a metric radial size with a 245-millimeter nominal section width, a 40-series profile, and an 18-inch rim diameter. On the 2013 Audi A5 Quattro, it serves as one of the primary modern radial fitments and keeps the buyer in the 18-inch wheel category. Available choices include blackwall performance tires from BFGoodrich, Nitto, and M&H Racemaster, along with Pro-Trac Street Pro III options in redline and raised white letter form. This size is the right path when the car is equipped with 18-inch wheels and the goal is to compare road-use character and appearance within that wheel setup.
255/35R19 is a metric radial size that uses a 255-millimeter nominal section width, a 35-series profile, and a 19-inch rim diameter. For the 2013 Audi A5 Quattro, this is the larger-wheel primary fitment and belongs only on a 19-inch wheel package. The available selections center on BFGoodrich g-Force series tires in blackwall form, giving the buyer a more focused comparison among series and specifications rather than sidewall styling. This size should be evaluated when the car already has 19-inch wheels and the tire search is centered on maintaining the proper 19-inch fitment.
Fitment is straightforward across the covered 2013 Audi A5 Quattro sub-models because both the Base and Cabriolet use the same two primary tire sizes. The key is not trim-specific sizing, but confirming whether the car is on 18-inch or 19-inch wheels before narrowing the tire selection.
1
2013 Audi A5 Quattro Base
The 2013 Audi A5 Quattro Base uses the same radial fitment pattern found across this page, with both 18-inch and 19-inch tire sizes applicable depending on the wheel setup. Tire selection comes down to verifying the installed wheel diameter, then comparing available series and sidewall treatments in the correct size.
The 2013 Audi A5 Quattro Cabriolet follows the same fitment approach, using the same primary radial sizes as the Base model. That makes wheel confirmation the important step, after which the buyer can choose among performance-oriented blackwall options or, in 18-inch fitment, a more distinctive sidewall look.
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 2013 Audi A5 Quattro Tires for Sale
Available 2013 Audi A5 Quattro tires include 245/40R18 and 255/35R19 radial options from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac. Buyers can compare blackwall performance tires across several g-Force and Street Pro III series, with redline and raised white letter choices appearing in the 18-inch fitment.
These 2013 Audi A5 Quattro tire FAQs focus on the two factory-size fitments, 18-inch versus 19-inch wheel confirmation, available radial choices, sidewall differences, and the inspection steps that matter before putting a modern Audi back on the road.
Tire Size & Fitment
What tire size fits a 2013 Audi A5 Quattro?
The 2013 Audi A5 Quattro uses two primary tire sizes: 245/40R18 and 255/35R19. Both are radial fitments, and both apply to the covered Base and Cabriolet versions depending on which wheel package is on the car.
The important step is confirming the actual wheel diameter before choosing a tire. An 18-inch wheel takes the 245/40R18 size, while a 19-inch wheel takes 255/35R19. If the car has been fitted with aftermarket wheels, verify the wheel markings and compare the current tire size before ordering replacement tires.
What size rim does a 2013 Audi A5 Quattro use?
A 2013 Audi A5 Quattro uses either an 18-inch or 19-inch rim, depending on the tire size on the car. The 245/40R18 fitment uses an 18-inch rim, and the 255/35R19 fitment uses a 19-inch rim.
That rim diameter determines which tire size belongs on the car, so it should be checked before comparing brands or series. Looking only at the body style is not enough because both Base and Cabriolet models can use either fitment. Reading the wheel itself or the sidewall on the existing tire is the quickest way to confirm it.
Do all 2013 Audi A5 Quattro sub-models use the same tire size?
The covered 2013 Audi A5 Quattro sub-models share the same two tire-size possibilities rather than having different trim-specific sizes. Both the Base and Cabriolet can use 245/40R18 or 255/35R19, depending on the wheel diameter installed on the car.
That means sub-model name alone does not settle the tire question. The real fitment check is the wheel package currently on the vehicle, especially if wheels have been changed over time. Once the wheel diameter is confirmed, the buyer can focus on selecting the right tire series, sidewall style, and road-use character in that exact size.
Choosing the Right Tire
What should I consider when choosing a 245/40R18 tire for a 2013 Audi A5 Quattro?
Start with the correct 18-inch fitment and then compare the available 245/40R18 radial choices by intended use, tire series, sidewall style, and rim-width compatibility. In this size, blackwall options are available from BFGoodrich, Nitto, and M&H Racemaster, while Pro-Trac adds redline and raised white letter alternatives.
That mix gives the 18-inch buyer more visual variety than the 19-inch fitment, so appearance can matter as much as tread character. Check that the wheel width falls within the tire’s stated range where that specification is given, and make sure the tire suits how the car is driven, especially if it sees more than occasional fair-weather use.
What sidewall styles are available for 2013 Audi A5 Quattro tires?
Sidewall style depends on the tire size chosen. The available products include blackwall tires in both 245/40R18 and 255/35R19, while the 245/40R18 fitment also includes redline and raised white letter options through the Pro-Trac Street Pro III series.
That means the 18-inch setup offers the broadest appearance range if the visual presentation matters. Buyers trying to keep a clean modern look may stay with blackwall, while someone wanting a stronger custom statement may look at redline or raised white letter. The sidewall choice should still come after confirming the correct wheel diameter and tire size.
What brands offer tires for the 2013 Audi A5 Quattro?
Tires for the 2013 Audi A5 Quattro are available from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac. Brand choice varies by size, with the 245/40R18 fitment offering the widest mix and the 255/35R19 fitment centered on BFGoodrich g-Force options.
The practical difference is not simply brand name, but how each brand’s available series, sidewall treatment, and fitment details line up with the car. Some buyers will be comparing blackwall performance tires only, while others may also care about appearance-driven options in the 18-inch size. Confirm the size first, then compare each brand within that exact fitment.
Restoration & Appearance
Which tire should I choose for a period-style 2013 Audi A5 Quattro?
A period-style approach on a 2013 Audi A5 Quattro starts with keeping the correct wheel diameter and using the proper size, either 245/40R18 or 255/35R19. Within those fitments, blackwall tires maintain the most restrained modern appearance, while 18-inch choices add redline and raised white letter alternatives for a more customized presentation.
Because this is a modern Audi rather than an earlier restoration-era car, the visual decision is usually about preserving the car’s clean design language instead of chasing vintage sidewall styling. Wheel size still leads the process. Once that is confirmed, choose the tire that matches how original or how personalized you want the finished look to be.
How does tire construction affect the appearance of a restored 2013 Audi A5 Quattro?
On the 2013 Audi A5 Quattro, appearance differences come less from construction changes and more from sidewall style and wheel size because the primary fitments are radial. The visual contrast is strongest between blackwall tires and the redline or raised white letter choices available in 245/40R18.
A blackwall tire keeps the car closer to the understated look many buyers want from an A5, while redline or raised white letter sidewalls create a much more noticeable custom effect. The 19-inch fitment is more limited in sidewall presentation, so buyers seeking a specific appearance should confirm both the wheel diameter and the styling they want before choosing.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 Audi A5 Quattro?
Yes, modifications can affect tire fitment on a 2013 Audi A5 Quattro even when the nominal tire size looks correct. Aftermarket wheels, changes in wheel width or offset, suspension lowering, and body or brake changes can all influence how a 245/40R18 or 255/35R19 tire sits in the wheelwell.
That is why the current setup matters more than assumptions about original equipment. Check wheel diameter first, then confirm width and clearance at the fender, suspension, and steering angles before selecting replacement tires. A car with altered ride height or nonstock wheels may need more careful verification than one still using its original wheel package.
What should I inspect before driving a 2013 Audi A5 Quattro on new tires?
Before driving a 2013 Audi A5 Quattro on new tires, inspect the wheels for damage, confirm the tire size matches the installed rim diameter, and verify that each tire is seated and inflated properly. It is also wise to look over suspension and steering components so the new tires are not working against worn hardware.
A careful first check helps the car track correctly and reduces the chance of rubbing or uneven wear. After installation, recheck pressure and look for any signs of clearance issues at full steering lock. On a car that has sat for stretches, it also makes sense to inspect alignment-related wear patterns and general condition before regular road use.
What should I check before a longer drive in a 2013 Audi A5 Quattro?
Before a longer drive, confirm that the 2013 Audi A5 Quattro is on the correct tire size for its wheels, inspect the tread and sidewalls for cuts or bulges, and make sure tire pressures are set appropriately. Any sign of irregular wear or ongoing air loss should be addressed before adding highway miles.
Longer trips put more heat and load into the tire, so small issues become more important. Take a moment to check for rubbing after luggage or passengers are added, especially on cars with nonstock wheels or suspension changes. A quick walk-around and pressure check can prevent fitment surprises once the drive is underway.
