The 2009 Audi Trucks Q5 arrived as Audi’s compact luxury crossover, blending all-weather utility with the road manners buyers expected from the brand in the late 2000s. That balance matters when it is time to sort out tires, because this model uses radial fitments in three different sizes depending on trim and wheel package: 235/60R18, 235/55R19, and 255/45R20. The choice is not just about diameter, but also about confirming the exact sub-model and wheel setup before comparing available tire options. For owners focused on appearance, street character, or a clean restoration-minded presentation, sidewall style and tire series can matter almost as much as size.
Which Tire Size Is Right for The 2009 Audi Trucks Q5
The 2009 Audi Trucks Q5 uses three primary tire sizes, and the correct one depends on the specific sub-model and wheel diameter. All three are radial fitments, but the first step is confirming whether the vehicle is on 18-, 19-, or 20-inch wheels, since trim level and wheel package determine which size applies. Once that is settled, the real decision becomes choosing the right tire style and product characteristics within the correct size.
235/60R18 is a metric radial size in which 235 identifies the section width in millimeters, 60 is the aspect ratio, R denotes radial construction, and 18 is the wheel diameter in inches. On the 2009 Audi Trucks Q5, this size suits vehicles equipped with 18-inch wheels and keeps the fitment in the modern radial format used on this model. Its overall dimensions place it very close to the other Q5 fitments, but wheel diameter remains the deciding factor. This is the size to evaluate when the vehicle carries the smaller factory-style wheel setup.
235/55R19 follows the same metric radial system, with a 235 millimeter section width, a 55-series profile, radial construction, and a 19-inch rim. For the 2009 Audi Trucks Q5, this size belongs on configurations running 19-inch wheels, including certain Premium Plus and Prestige setups. It keeps the same nominal width as the 18-inch option while pairing it with a larger wheel and slightly shorter sidewall. This fitment is worth checking closely when the vehicle sits between base-style and larger sport-oriented wheel packages.
255/45R20 is a wider metric radial size, with 255 showing the section width in millimeters, 45 indicating the profile, and 20 marking the wheel diameter in inches. On the 2009 Audi Trucks Q5, this fitment is tied to 20-inch wheel applications and brings the broadest footprint of the three primary sizes. Available choices in this size include BFGoodrich, Nitto, and Pro-Trac options, along with Blackwall, raised white letter, and Redline sidewall treatments across several tire series. It is the size to review when the vehicle already has the largest wheel package installed.
Sub-model fitment on the 2009 Audi Trucks Q5 is not the same across the range, so identifying the exact trim matters before choosing tires. Some versions stay with one wheel and tire size, while others can use more than one fitment depending on wheel package.
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2009 Audi Trucks Q5 Premium
The 2009 Audi Trucks Q5 Premium uses a straightforward tire fitment centered on 235/60R18 radial tires. That makes wheel confirmation relatively simple, and the main task becomes selecting the right 18-inch replacement tire for everyday road use and the vehicle’s existing setup.
The 2009 Audi Trucks Q5 Premium Plus can be found with more than one tire size, so trim name alone is not enough to choose a replacement. Checking the actual wheel diameter on the vehicle is the key step before comparing tire options or moving ahead with a purchase.
The 2009 Audi Trucks Q5 Prestige uses larger-wheel fitments than the Premium model, with tire choice tied to either a 19-inch or 20-inch wheel setup. That means owners should verify the current wheel package first, then compare tires within the correct size rather than assuming one Prestige fitment covers every vehicle.
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 2009 Audi Trucks Q5 Tires for Sale
Product choice is concentrated in 255/45R20, where available radial options include BFGoodrich, Nitto, and Pro-Trac tires across several series and sidewall treatments. Blackwall, raised white letter, and Redline presentations give this Q5 fitment a noticeably different look depending on the tire selected.
These FAQs focus on the 2009 Audi Trucks Q5 tire questions that matter most: identifying the correct size by trim and wheel diameter, understanding radial fitment, comparing sidewall and brand choices, and checking the vehicle before road use.
Tire Size & Fitment
What tire size fits a 2009 Audi Trucks Q5?
The 2009 Audi Trucks Q5 uses three primary tire sizes: 235/60R18, 235/55R19, and 255/45R20. All are radial sizes, but they do not apply across the model range in the same way. Premium models use 235/60R18, Premium Plus models can use all three sizes depending on wheel setup, and Prestige models use either 235/55R19 or 255/45R20.
The key step is matching the tire to the actual wheel diameter on the vehicle rather than relying only on the trim badge. A Q5 with 18-inch wheels needs a different tire than one with 19- or 20-inch wheels, even when overall tire height is close. Checking the current wheel and existing tire sidewall is the safest way to narrow the correct fitment.
What size rim does a 2009 Audi Trucks Q5 use?
A 2009 Audi Trucks Q5 can use 18-inch, 19-inch, or 20-inch rims, depending on the sub-model and wheel package. The matching tire sizes are 235/60R18 for 18-inch wheels, 235/55R19 for 19-inch wheels, and 255/45R20 for 20-inch wheels. Those rim diameters are part of the tire size itself, so the last number on the tire is an immediate guide.
Wheel diameter should be confirmed before anything else, especially on Premium Plus and Prestige models that may not all wear the same setup. Measuring only by appearance can be misleading, since the three fitments are similar in overall height. Once the rim diameter is known, the search can shift to comparing the proper tire size, sidewall style, and tire series.
Why does the 2009 Audi Trucks Q5 have more than one tire size?
The 2009 Audi Trucks Q5 has more than one tire size because tire fitment changes with trim level and wheel package. The Premium model uses 235/60R18, while Premium Plus and Prestige versions can carry larger 19-inch or 20-inch wheel-and-tire combinations. The sizes stay close in overall diameter, but the wheel diameter and sidewall profile change from one setup to another.
That means the right replacement tire is not chosen by model name alone. Two Q5s from the same year may need different tires if one has 18-inch wheels and another has 20-inch wheels. Owners should verify the current wheel and tire markings before ordering, especially if the vehicle has changed hands or may have received a different wheel package at some point.
Choosing the Right Tire
What should I consider when choosing a 255/45R20 tire for a 2009 Audi Trucks Q5?
Start with the basics: the vehicle must actually use the 255/45R20 fitment and have 20-inch wheels. Within that size, available choices vary by brand, tire series, sidewall treatment, and some product specifications such as rim-width range, weight, and, in one case, a stated maximum load capacity of 1819@51. Those differences shape both appearance and how the tire matches the wheel.
Once size is confirmed, compare what matters most for the vehicle’s role. A Q5 that is driven regularly may call for a straightforward modern Blackwall radial, while an owner interested in a stronger visual statement might prefer raised white letter or Redline styling. It also helps to confirm the wheel width, since some 255/45R20 products are intended for a defined rim-width range.
What sidewall styles are available for 2009 Audi Trucks Q5 tires?
For the 2009 Audi Trucks Q5, the visible sidewall choices in the available 255/45R20 products include Blackwall, RWL, and Redline. Blackwall keeps the most understated modern look, while RWL adds raised white lettering and Redline introduces a performance-inspired accent. All of those options stay within the same primary 20-inch Q5 tire size.
Sidewall style does not replace the need to choose the correct tire size, but it can change the character of the vehicle noticeably. Owners trying to keep a cleaner late-2000s luxury-crossover appearance may lean toward Blackwall, while those personalizing the Q5 may prefer a more expressive look. It is worth deciding on appearance only after the size, wheel diameter, and basic fitment have been confirmed.
What brands offer tires for the 2009 Audi Trucks Q5?
In the available 255/45R20 fitment for the 2009 Audi Trucks Q5, tire choices include BFGoodrich, Nitto, and Pro-Trac. Those brands appear across several tire series, including g-Force Comp 2 AS, g-Force Sport Comp 2, Nitto NT555 G2, and Street Pro III. Each stays within the radial construction used on this model’s primary fitments.
Brand selection should come after confirming that 255/45R20 is the correct size for the vehicle’s wheel package. Once that is established, compare each option by sidewall presentation, series character, and wheel compatibility details rather than choosing on name alone. That approach is especially useful on a Q5 where trim and wheel setup can place the vehicle in a completely different tire size.
Restoration & Appearance
Which tire should I choose for a period-style 2009 Audi Trucks Q5?
A period-style 2009 Audi Trucks Q5 should start with the tire size that matches the vehicle’s actual wheel package: 235/60R18, 235/55R19, or 255/45R20. Because this is a late-2000s luxury crossover, the visual baseline is already modern radial construction rather than vintage bias-ply styling. That makes correct size and wheel diameter the first part of any appearance-minded decision.
For a cleaner factory-inspired presentation, a Blackwall radial is usually the least visually disruptive option among the available 20-inch choices. Owners leaning toward a more customized or enthusiast look may consider RWL or Redline treatments instead. If exact originality matters, the best next step is to compare the vehicle against period Audi sales literature, window-sticker records, or marque-specific references.
How does tire construction affect the appearance of a restored 2009 Audi Trucks Q5?
On a 2009 Audi Trucks Q5, construction affects appearance less through bias-ply versus radial and more through the details of a modern radial tire. This model uses radial primary fitments throughout, so the visual differences come from profile, wheel diameter, sidewall style, and tire series rather than from switching between vintage and modern construction types.
That means a restored or carefully preserved Q5 benefits most from keeping the correct overall fitment theme for its wheel package. An 18-inch setup presents differently from a 20-inch setup, and a Blackwall tire creates a different impression than RWL or Redline. Owners trying to preserve a showroom-era look should match the wheel and tire combination to the vehicle’s intended trim presentation.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Audi Trucks Q5?
Yes, modifications can affect tire fitment on a 2009 Audi Trucks Q5 even when the tire size looks close to stock. Aftermarket wheels can change width and offset, and suspension changes can alter clearance at the fender, strut, or steering components. Those changes matter most on trims that can use multiple wheel diameters, because the vehicle may no longer match its original setup.
A modified Q5 should be checked at the wheel itself before replacement tires are chosen. Confirm the wheel diameter, inspect the current tire size, and look for signs of rubbing at full steering lock and through suspension travel. That step matters whether the vehicle has been lowered, fitted with accessory wheels, or simply changed from one factory-style package to another over time.
What should I inspect before driving a 2009 Audi Trucks Q5 on new tires?
Before driving a 2009 Audi Trucks Q5 on new tires, confirm that the installed size matches the wheel diameter and the vehicle’s actual trim setup. Then inspect the wheels for damage, check that the tires seat properly, and verify inflation before road use. It is also smart to look over the valve stems and make sure there is no immediate air loss after installation.
A brief clearance check adds another layer of protection, especially on vehicles with 19- or 20-inch wheels. Turn the steering from lock to lock and watch for contact near liners, suspension parts, or body edges. After the first few drives, recheck pressure and look for any unusual wear pattern, since that can reveal alignment or wheel-fit issues that were already present.
How often should tires on a 2009 Audi Trucks Q5 be inspected?
Tires on a 2009 Audi Trucks Q5 should be inspected regularly, not just when tread looks low. Routine checks should include air pressure, uneven wear, cuts, bulges, and cracking, along with a quick look at the wheel itself. On a vehicle that sees mixed use or seasonal driving, those inspections are especially important because problems can develop while miles remain relatively low.
Collectors and low-mileage owners should not assume light use means low risk. A Q5 that spends long periods parked can still develop age-related tire issues or slow air loss, and either one can affect handling once the vehicle is back on the road. Checking condition before longer trips, and after storage periods, helps catch problems before they become a roadside concern.
