The 2007 Audi A6 Quattro belongs to Audi’s modern executive-sedan era, blending all-wheel-drive confidence with the crisp, substantial road manners buyers expect from a premium German sport sedan. Whether in sedan or Avant form, this generation rewards a tire choice that preserves both its stance and its composure. The 2007 Audi A6 Quattro uses radial tires in two primary sizes, 245/45R17 and 245/40R18, so the first step is confirming which wheel diameter is on the car. From there, the decision shifts to tread character, brand, and sidewall presentation, including blackwall, redline, and raised white letter options. Careful fitment matters most on cars that may already wear replacement wheels or suspension changes.
Which Tire Size Is Right for The 2007 Audi A6 Quattro
The 2007 Audi A6 Quattro uses two primary tire sizes, and the difference comes down first to wheel diameter: 17-inch or 18-inch. Both sizes are radial metric fitments used across the covered sub-models, so selecting the right tire starts with confirming the actual wheels on the car. Once that is settled, the choice becomes a matter of tire series, sidewall style, and how the car is driven or presented.
A 245/40R18 tire is a metric radial size with a 245-millimeter nominal section width, a 40-series profile, and an 18-inch rim diameter. On the 2007 Audi A6 Quattro, this size supports the lower-profile 18-inch wheel setup and keeps the selection firmly in modern radial construction. Available choices include BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, with blackwall, redline, and RWL sidewall treatments across several series. This size is the right one to evaluate only after confirming that the car is actually equipped with 18-inch wheels rather than the alternate 17-inch fitment.
A 245/45R17 tire uses the same 245-millimeter nominal width but pairs it with a 45-series profile and a 17-inch rim diameter. For the 2007 Audi A6 Quattro, this is the matching radial fitment for cars running the 17-inch wheel setup. Product choices include BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, with blackwall, redline, and RWL sidewall styles depending on the series. This size should be chosen only after checking the wheel diameter on the vehicle, especially since both primary sizes appear across the same covered sub-model range.
Tire fitment is straightforward across the covered 2007 Audi A6 Quattro sub-models because each one can use the same two primary radial sizes. What matters most is confirming whether the car has 17-inch or 18-inch wheels before comparing tire choices.
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2007 Audi A6 Quattro 3.2
The 2007 Audi A6 Quattro 3.2 uses the same two primary radial tire sizes found across this model range, so wheel diameter is the key fitment checkpoint. Once the 17-inch or 18-inch setup is confirmed, tire selection can focus on series, sidewall treatment, and intended street use.
The 2007 Audi A6 Quattro 4.2 follows the same two-size radial fitment pattern, making the actual wheel package more important than the engine designation alone. Tire choice then comes down to matching the correct rim diameter and deciding between blackwall, redline, RWL, and performance-oriented series.
The 2007 Audi A6 Quattro Avant also uses the same pair of primary radial sizes, so there is no separate wagon-only size to sort through here. The practical step is confirming 17-inch versus 18-inch wheels, then comparing product style, rim-width compatibility, and the look you want on the car.
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 2007 Audi A6 Quattro Tires for Sale
Available 2007 Audi A6 Quattro tire choices center on 245/40R18 and 245/45R17 radials from BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac. The product grid includes blackwall, redline, and RWL sidewall styles across performance, all-season, drag radial, and Street Pro III series.
Tire questions for the 2007 Audi A6 Quattro usually come down to choosing between 245/45R17 and 245/40R18, confirming wheel fitment, and comparing brands, sidewall styles, and road-use priorities before installation.
Tire Size & Fitment
What tire size fits a 2007 Audi A6 Quattro?
The 2007 Audi A6 Quattro uses two primary tire sizes: 245/45R17 and 245/40R18. Both are radial metric fitments, and both appear across the covered 3.2, 4.2, and Avant sub-models, so the correct choice depends on which wheel diameter is actually on the car.
That makes wheel confirmation more important than trim alone. Check the current tire sidewall and the wheel itself to verify whether the car has 17-inch or 18-inch rims, especially if it has changed hands or may have aftermarket wheels. Once the rim diameter is confirmed, the remaining choice is among available tire series, sidewall styles, and driving purpose.
What size rim does a 2007 Audi A6 Quattro use?
A 2007 Audi A6 Quattro uses either a 17-inch rim with 245/45R17 tires or an 18-inch rim with 245/40R18 tires. Both rim diameters are correct within this model range, and both are tied to radial tire fitments rather than older bias-ply sizing conventions.
The key is matching tire size to the wheel diameter already on the vehicle. A 17-inch tire cannot be mounted on an 18-inch wheel, and the reverse is also true. On a car like the A6 Quattro, it is also smart to verify actual wheel width and overall clearance if the wheels were replaced, since the same model can appear with more than one wheel setup.
Do all 2007 Audi A6 Quattro sub-models use the same tire size?
The covered 2007 Audi A6 Quattro sub-models share the same two primary tire sizes: 245/45R17 and 245/40R18. That includes the 3.2, 4.2, and Avant, so there is no separate sub-model-only size split within this group.
Even so, tire selection is not automatic until the wheel diameter is checked on the specific car. Since both sizes appear across all three sub-models, trim alone does not tell the whole story. The practical approach is to verify the wheel size first, then compare radial tire options by sidewall style, brand, and intended use rather than assuming one size applies to every A6 Quattro on sight.
Choosing the Right Tire
What should I consider when choosing a 245/40R18 or 245/45R17 tire for a 2007 Audi A6 Quattro?
Start with the correct primary size for the wheels on the car: 245/45R17 for 17-inch rims or 245/40R18 for 18-inch rims. From there, compare tire construction, brand, tire series, sidewall treatment, and any load or rim-width details that affect how a given product suits the car’s intended use.
A street-driven A6 Quattro may call for a different tire character than a car aimed at appearance or occasional competition use. Some choices lean toward all-season or sport-oriented road use, while others are clearly specialized, such as drag radial offerings. Matching the tire to the actual wheel setup and how the car is driven will usually narrow the field faster than focusing on brand alone.
What sidewall styles are available for 2007 Audi A6 Quattro tires?
Tires for the 2007 Audi A6 Quattro are available in blackwall, redline, and RWL sidewall styles, depending on size and series. Blackwall is the most common presentation across the 245/40R18 and 245/45R17 fitments, while Pro-Trac Street Pro III options add redline and raised white letter choices.
Sidewall style changes the visual character of the car even when the tire size stays the same. A blackwall keeps a modern, understated appearance, while redline or RWL adds more visual emphasis. The main thing is to keep appearance choices secondary to correct size and wheel compatibility, especially on an A6 Quattro that may already have replacement wheels or a non-original stance.
What brands offer tires for the 2007 Audi A6 Quattro?
Available tire brands for the 2007 Audi A6 Quattro include BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac. These brands cover both primary sizes and span several product types, from sport-oriented road tires to specialty drag radial and appearance-focused options.
Brand choice matters most when it also aligns with the type of tire you want. Some buyers will focus on a traditional blackwall performance look, while others may prefer a Pro-Trac redline or RWL presentation. Comparing size, rim-width suitability, load details where shown, and the intended role of the tire will be more useful than treating every brand choice as serving the same purpose.
Restoration & Appearance
Which tire should I choose for a period-style 2007 Audi A6 Quattro?
A period-style approach for a 2007 Audi A6 Quattro starts with keeping the correct primary size for the wheel diameter already on the car, either 245/45R17 or 245/40R18. From there, the visual decision usually comes down to whether a restrained blackwall look or a more expressive sidewall treatment better suits the car’s presentation.
Because this is a modern-era Audi rather than an early collector car, appearance choices often reflect owner preference more than strict restoration convention. Redline and RWL options can create a custom look, while blackwall stays closer to the understated character many buyers expect from the model. Exact originality should be checked against marque-specific references if that level of detail matters.
How does tire construction affect the appearance of a restored 2007 Audi A6 Quattro?
On a 2007 Audi A6 Quattro, construction changes appearance less dramatically than on older collector vehicles because both primary fitments are radial sizes. The bigger visual difference usually comes from profile, wheel diameter, and sidewall treatment rather than from a choice between bias-ply and radial construction.
That means the restored or carefully presented look is shaped more by selecting the proper 17-inch or 18-inch size and the right sidewall style. A blackwall tire keeps the car visually clean, while redline or RWL options create a more personalized statement. Preserving the intended stance and avoiding a mismatched tire-to-wheel combination matters more than chasing construction nostalgia on this Audi.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2007 Audi A6 Quattro?
Yes. A 2007 Audi A6 Quattro may use either 245/45R17 or 245/40R18, and modifications such as aftermarket wheels, different wheel widths, suspension changes, or altered ride height can affect which tire setup works cleanly on the car. Even when the size looks familiar, the overall package may no longer match a stock-style wheel fitment.
That is why actual measurements on the car matter more than assumptions based on model name alone. Check wheel diameter first, then verify wheel width, inner and outer clearance, and steering travel before changing size or series. A lowered car or one with replacement wheels deserves extra attention so the tire does not contact suspension parts, fenders, or liners in use.
What should I inspect before driving a 2007 Audi A6 Quattro on new tires?
Before driving a 2007 Audi A6 Quattro on new tires, confirm the correct size was mounted for the wheel diameter, check inflation pressure, and look over the wheels for damage or irregular bead seating. It is also smart to inspect the suspension and steering components for looseness or wear that could affect how the new tires track and wear.
A short initial drive should include attention to vibration, pulling, rubbing, or unusual noise. Recheck pressure after the tires have settled and keep an eye on sidewall and tread condition during the first few outings. On a Quattro-equipped car, matching sizes across the setup and maintaining even condition are especially important when preserving predictable road manners.
How often should tires on a 2007 Audi A6 Quattro be inspected?
Tires on a 2007 Audi A6 Quattro should be inspected regularly, not just when mileage accumulates. Check them for uneven wear, cuts, bulges, cracking, punctures, and pressure loss, and pay close attention if the car is driven infrequently or spends long periods parked, since age and storage conditions can matter as much as tread depth.
A monthly visual check is a sensible baseline, with an extra inspection before longer trips or seasonal use. It also helps to look for signs that the wheel alignment or suspension needs attention, especially if wear appears heavier on one edge. Keeping the correct inflation and addressing problems early will protect both tire life and the composed road feel expected from the A6 Quattro.
