2017 Audi Trucks Tire Fitment Guide

2017 Audi Trucks vehicles use nine tire sizes across five models: 235/50R18 and 255/40R19 for Q3 and Q3 Quattro; 235/55R19, 235/60R18, 255/45R20, and 255/40R21 for Q5; 255/45R20 and 255/40R21 for SQ5; and 255/55R19, 285/45R20, and 285/40R21 for Q7. Rim diameters span 18, 19, 20, and 21 inches, so there is no single size that fits every model in the 2017 Audi Trucks range.

That makes model identification the first step, and wheel diameter the second. Within the sizes that have full product coverage here, 235/50R18 fits 18-inch rims that typically run 6.5 to 8.5 inches wide, 255/40R19 fits 19-inch rims that typically run 8.5 to 10.0 inches wide, and 255/45R20 fits 20-inch rims that typically run 8.0 to 9.5 inches wide where a rim-width range is specified. If your Audi has changed hands or wears aftermarket wheels, verify the actual wheel before choosing a tire.

On a 2017 Audi Trucks tire, 235/50R18 is a metric radial code. The 235 is the nominal section width in millimeters, 50 is the aspect ratio, meaning the sidewall height is 50 percent of the section width, R identifies radial construction, and 18 is the wheel diameter in inches. Within the 2017 Audi Trucks range, this size belongs to Q3 and Q3 Quattro models.

That decoding matters because it tells you far more than the tire’s outside look. A 235/50R18 tire is designed around an 18-inch wheel and, in the available product range, typically suits rims from 6.5 to 8.5 inches wide. It also helps separate it from the Q3 family’s 255/40R19 option, which uses a wider tread and a different wheel diameter. Matching the full code exactly is the safest way to avoid ordering a tire that looks close on paper but will not mount correctly.

No, 2017 Audi Trucks models do not use the same tire size. The Q3 and Q3 Quattro share two compact-crossover sizes, the Q5 has four different fitments depending on wheel package, the SQ5 shares two of the Q5’s larger sizes, and the Q7 uses its own wider 19-, 20-, and 21-inch sizes. Even where two models share a size, that overlap is limited to specific model pairs rather than the entire lineup.

For a buyer, that means year and make alone are not enough. A Q5 on 255/45R20 and a Q7 on 285/45R20 both use 20-inch wheels, but they are not the same size and should not be treated as interchangeable. The same caution applies to 21-inch fitments. If you are working from memory or an old service receipt, compare the exact sidewall marking on the vehicle with the model-specific fitment before moving ahead.

2017 Audi Trucks tire choices here are predominantly Blackwall, which suits the clean, contemporary appearance expected on late-model Audi crossovers. The 235/50R18 and 255/40R19 sizes are covered in Blackwall only, while 255/45R20 is available in both Blackwall and RWL form. That means sidewall appearance becomes a real choice only within certain 20-inch applications for Q5 and SQ5.

Most owners trying to preserve a factory-style look will naturally gravitate toward Blackwall, especially on a 2017 luxury crossover where raised white lettering was not part of Audi’s visual language. RWL can appeal to someone building a more personalized look, but it changes the character of the vehicle more noticeably than many buyers expect. If appearance matters as much as fitment, sidewall style should be confirmed before narrowing by brand alone.

BFGoodrich, Nitto, and Pro-Trac appear across the 2017 Audi Trucks sizes covered by current products. In 235/50R18, BFGoodrich and Nitto are available; in 255/40R19, BFGoodrich covers the size; and in 255/45R20, BFGoodrich, Nitto, and Pro-Trac all appear. Every product in those covered sizes uses radial construction, which aligns with the original design era of a 2017 Audi crossover.

Brand choice matters most after the correct size is settled, not before. A Q3 owner choosing between BFGoodrich and Nitto in 235/50R18 is making a true within-size comparison, while a Q7 owner first needs to confirm whether the vehicle is on 19-, 20-, or 21-inch wheels. Once size is locked in, compare brand-by-brand details such as sidewall appearance, load capacity, and speed rating rather than assuming every product in a shared size is identical.

In 235/50R18 for 2017 Audi Trucks, both BFGoodrich and Nitto offer Blackwall radial tires, but their published specs are not identical. BFGoodrich options include products around 26 to 29 pounds, with examples carrying 97W and 101W service descriptions and load figures up to 1,819 pounds at 50 psi. Nitto’s NT555 G2 in the same size is also a W-rated Blackwall radial, weighs about 27.86 pounds, and carries a 1,819-pound load figure at 50 psi.

That means the practical difference is less about fitment and more about the product’s individual character within the same size. Both brands work within the same 18-inch size family for Q3 and Q3 Quattro applications, and both suit similar rim-width ranges centered around 6.5 to 8.5 inches. If you are comparing them, focus on the exact load index, speed symbol, and your preference for a given series rather than assuming one 235/50R18 radial behaves exactly like another.

Rim-width guidance varies by tire size on 2017 Audi Trucks vehicles. In the available product range, 235/50R18 typically fits rims from 6.5 to 8.5 inches wide, 255/40R19 typically fits 8.5 to 10.0 inches wide, and 255/45R20 typically fits 8.0 to 9.5 inches wide where a rim-width range is given. Those ranges are tied to the specific size and should not be transferred from one Audi fitment to another.

That is especially important on a lineup like 2017 Audi Trucks, where several models use similar-looking low-profile tires but on different wheel widths and diameters. A 20-inch Q5 or SQ5 setup is not automatically a substitute for a 20-inch Q7 setup simply because the rim diameter matches. If your wheels are original, the correct size will usually align cleanly with the intended rim. If they are aftermarket, check the actual stamped wheel width before mounting tires.

The 2017 Audi Trucks tire sizes covered here are modern radial fitments, and the products that show tube status include a tubeless marking on at least one 255/40R19 application. No tube-type markings appear in the available 235/50R18 or 255/45R20 products. That points these sizes toward modern tubeless use rather than the tube-type construction associated with older collector vehicles.

Even so, the tire itself is only one part of the equation. Tube use can still be affected by the wheel’s condition, design, or any non-original changes made over time. If your 2017 Audi Trucks model is still on factory-style wheels in sound condition, tubeless fitment is the normal expectation for this era. The safest practice is to confirm the sidewall marking on the exact product and inspect the wheel carefully before installation.

Original 2017 Audi Trucks wheels can only be used with the tire sizes that match their exact diameter and appropriate width range. This lineup uses 18-, 19-, 20-, and 21-inch fitments, so there is no universal wheel that takes every size across Q3, Q5, Q7, and SQ5 models. Even within a shared diameter, the width and section dimensions can differ significantly, such as the difference between a 255/45R20 and a 285/45R20.

The practical takeaway is simple: treat the wheel already on the vehicle as the anchor point. If your Audi still has its original wheel package, match the replacement tire to that diameter first and then confirm the exact size code. If the wheel package has been changed, rely on the wheel’s stamped dimensions and the tire manufacturer’s approved range instead of assuming any same-diameter Audi SUV tire will interchange.

A stored 2017 Audi Trucks should be kept away from prolonged sunlight, standing moisture, and ozone-producing equipment such as electric motors, battery chargers, and welders. Keep the tires clean, maintain proper inflation, and move the vehicle occasionally so the same tread area is not carrying the full weight for months at a time. Because these are radial tires rather than older bias-ply designs, they generally resist flat-spotting better during storage, but long static periods still age the rubber.

For a crossover that may see seasonal use, the best routine is cool indoor storage, a clean floor, and periodic checks rather than letting it sit untouched. If the vehicle will be down for an extended period, some owners use tire cradles or stands to reduce stress, but regular movement and pressure checks go a long way. Storage habits influence cracking, vibration, and ride quality just as much as annual mileage on low-use vehicles.

On a 2017 Audi Trucks vehicle, tire age usually matters more than mileage once the vehicle becomes a lower-use second car or enthusiast daily driver. A sensible rule is to begin close inspection around five to seven years of service and to treat around ten years from the DOT date code as a serious replacement point, even if tread depth still looks acceptable. Rubber compounds harden over time, and that aging affects grip, ride quality, and structural confidence.

The most useful habit is to check the date code on every tire, including the spare if one is carried, instead of judging by appearance alone. A lightly driven Q5 or Q7 can wear very little tread while still aging out. If the vehicle has mismatched tire ages, replace based on the oldest tire that is still in serviceable rotation. Age-based maintenance is especially important on performance-oriented low-profile sizes where responsiveness can change noticeably as rubber hardens.

Tires on a 2017 Audi Trucks vehicle should be inspected before every drive and again before any extended highway trip. Look for cracking, cuts, bulges, abnormal shoulder wear, embedded debris, and uneven tread depth, and confirm that each tire is holding pressure consistently. Modern radial Audi fitments also benefit from a close look at the wheel lip and valve area, since low-profile tires can hide impact damage that is not obvious from a quick walk-around.

Frequent inspection matters because these crossovers often run larger-diameter wheels with shorter sidewalls, and damage can show up as ride harshness or vibration before it becomes visually dramatic. A quick pre-drive check is often enough for normal use, but a longer outing deserves a fuller inspection, including the spare if applicable. Catching a slow leak, sidewall bruise, or irregular wear pattern early can prevent being stranded and may also point to an alignment or suspension issue.

Yes, the 2017 Audi Trucks tire sizes covered here are modern radial designs intended for contemporary road use, and the available products carry highway-capable speed ratings. The sizes with visible speed data include W-rated products up to 112 mph and Y-rated products up to 186+ mph, depending on the exact tire. Those ratings are well beyond normal U.S. highway speeds, although they do not override load, inflation, alignment, or condition requirements.

In real use, a 2017 Audi crossover’s safety on the highway depends as much on overall vehicle condition as on the speed symbol molded into the tire. Suspension wear, brake condition, and correct inflation all matter, especially on heavier Q5 and Q7 applications and on low-profile wheel packages. Choose the correct size first, then make sure the tire’s load and speed service are appropriate for how the vehicle is actually used rather than assuming any same-size tire offers the same margin.

Inflation pressure on 2017 Audi Trucks tires should follow the vehicle placard or owner’s manual first, because factory pressure recommendations are vehicle-specific even when two models use similar-looking sizes. The tire’s own service data is still useful: examples here include 235/50R18 products with load figures up to 1,819 pounds at 50 psi, 255/40R19 products up to 1,764 pounds at 50 psi, and 255/45R20 products up to 1,819 pounds at 51 psi. Those figures describe the tire’s rated capacity, not necessarily the pressure Audi specified for daily operation.

That distinction matters because running every size at its maximum sidewall pressure can hurt ride quality and wear pattern while doing nothing to improve fitment. Use the Audi placard as your normal-pressure baseline, then confirm the tire manufacturer’s guidance for the exact product if the vehicle has a non-original tire model or wheel package. Never transfer a pressure number from one size to another just because both belong to the 2017 Audi Trucks family.

Before taking a 2017 Audi Trucks vehicle on a longer drive, inspect each tire for cracking, cuts, punctures, bulges, and uneven tread wear, then confirm cold inflation pressures and make sure the valve stems are in good condition. Check the spare as well if your model carries one. On low-profile 19-, 20-, and 21-inch fitments, pay extra attention to curb impact damage and inner sidewall bruising that can be easy to miss from a standing glance.

A longer trip also calls for a broader mechanical check that suits a modern used Audi: brakes, fluids, battery condition, alignment feel, and any warning lights should all be addressed before departure. Tires are only one part of the preparation, but they are the part touching the road the entire time. If anything feels off during the first few miles—pulling, vibration, tramlining, or pressure loss—stop and investigate before committing to the rest of the drive.