The 2017 Mercedes-Benz Trucks GLC300 sits in the modern luxury crossover segment, blending compact SUV practicality with the road manners and polished design expected from a Mercedes-Benz of this era. Tire choice on this model is less about vintage-style construction and more about matching the correct wheel setup, since the GLC300 uses multiple radial sizes across 18-, 19-, and 20-inch rims, and the coupe configuration can also use a staggered 20-inch arrangement. Available choices in 255/45R20 add further variety through brands, tire series, and sidewall treatments such as Blackwall, raised white letter, and Redline. The key is confirming the exact sub-model and wheel diameter before choosing for appearance, handling character, or everyday road use.
Which Tire Size Is Right for The 2017 Mercedes-Benz Trucks GLC300
The 2017 Mercedes-Benz Trucks GLC300 uses four primary tire sizes, and the right one depends on the exact sub-model and wheel setup. Sizes vary across 18-, 19-, and 20-inch rims, and the coupe configuration can also use a staggered 20-inch front-and-rear combination. Before choosing a tire, confirm both the specific sub-model and the actual wheel diameter on the vehicle.
235/55R19 is a metric radial size in which 235 identifies the nominal section width in millimeters, 55 is the aspect ratio, R indicates radial construction, and 19 is the wheel diameter in inches. On the 2017 Mercedes-Benz Trucks GLC300, this size suits 19-inch wheel applications and keeps the fitment within a modern radial format. Its dimensions place it close in overall diameter to the other primary GLC300 sizes, but that does not make it interchangeable across every setup. This size should be chosen only when the vehicle's sub-model and wheel package call for a 19-inch tire.
235/60R18 is a metric radial size with a 235-millimeter nominal section width, a 60-series profile, radial construction, and an 18-inch rim diameter. For the 2017 Mercedes-Benz Trucks GLC300, it belongs to 18-inch wheel fitments and offers a straightforward modern sizing format that most current buyers will recognize. Its overall diameter is very close to the 19- and 20-inch options used elsewhere on the model, but wheel diameter remains the deciding factor. Choose this size only after confirming the vehicle is equipped with the correct 18-inch wheels rather than one of the larger wheel packages.
255/45R20 is a metric radial size where 255 is the nominal section width in millimeters, 45 is the aspect ratio, R designates radial construction, and 20 is the wheel diameter. On the 2017 Mercedes-Benz Trucks GLC300, this size appears on 20-inch applications and is also used as the front size on the staggered coupe setup. Product choice is strongest here, with BFGoodrich, Nitto, and Pro-Trac options, plus sidewall treatments that include Blackwall, raised white letter, and Redline across multiple tire series. This is the size to evaluate carefully when the vehicle already has 20-inch wheels and tire style matters alongside fitment.
285/40R20 is a metric radial size with a 285-millimeter nominal section width, a 40-series profile, radial construction, and a 20-inch rim diameter. On the 2017 Mercedes-Benz Trucks GLC300, this size serves a specific role as the rear tire in the staggered 20-inch coupe arrangement rather than a universal fitment across the model line. Its broader section width makes it functionally different from the 255/45R20 front size even though both use 20-inch wheels. This size should be selected only after verifying the vehicle uses the coupe rear setup and still retains the correct matching wheel configuration.
Tire fitment on the 2017 Mercedes-Benz Trucks GLC300 varies by sub-model and wheel package rather than following one single setup across the range. Checking the exact body configuration matters, especially because the coupe can use a staggered 20-inch front-and-rear arrangement that differs from the standard SUV fitments.
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2017 Mercedes-Benz Trucks GLC300 4Matic
The 2017 Mercedes-Benz Trucks GLC300 4Matic uses more than one radial tire size, depending on which wheel package is on the vehicle. Tire selection starts with confirming whether it has 18-, 19-, or 20-inch wheels, then comparing the available tire style and performance-oriented choices within that size.
The 2017 Mercedes-Benz Trucks GLC300 4Matic Coupe uses 235/55R19 in this configuration. That makes the decision more straightforward than the multi-size SUV setups, but the buyer should still confirm the actual wheels on the vehicle before choosing a replacement tire.
2017 Mercedes-Benz Trucks GLC300 4Matic Coupe Front
The 2017 Mercedes-Benz Trucks GLC300 4Matic Coupe Front uses the 255/45R20 radial size as part of a staggered arrangement. Tire selection here should account for the front-specific role of the size and the available brand, series, and sidewall differences within the 20-inch options.
2017 Mercedes-Benz Trucks GLC300 4Matic Coupe Rear
The 2017 Mercedes-Benz Trucks GLC300 4Matic Coupe Rear uses 285/40R20, pairing a wider rear tire with the coupe's staggered 20-inch setup. Choosing the correct rear size is essential so the vehicle keeps the intended front-to-rear relationship rather than mixing a universal 20-inch fitment across both ends.
The 2017 Mercedes-Benz Trucks GLC300 Base uses multiple radial sizes tied to different wheel diameters. The first step is confirming whether the vehicle has 18-, 19-, or 20-inch wheels, then selecting the tire that matches that package rather than assuming every GLC300 uses the same size.
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 2017 Mercedes-Benz Trucks GLC300 Tires for Sale
Available product choice is concentrated in 255/45R20, where BFGoodrich, Nitto, and Pro-Trac offer several radial series with Blackwall, raised white letter, and Redline sidewall treatments. That gives 20-inch GLC300 owners the clearest opportunity to compare brand character, series design, and appearance.
These FAQs focus on the exact tire sizes used on the 2017 Mercedes-Benz Trucks GLC300, including wheel-diameter differences, coupe staggered fitment, product selection in 255/45R20, and the checks worth making before regular road use.
Tire Size & Fitment
What tire size fits a 2017 Mercedes-Benz Trucks GLC300?
The 2017 Mercedes-Benz Trucks GLC300 uses four primary radial tire sizes: 235/60R18, 235/55R19, 255/45R20, and 285/40R20. The correct one depends on the exact sub-model and wheel package, with the coupe also using a staggered 20-inch setup that separates front and rear sizes.
Choosing the right tire starts with identifying the actual wheels on the vehicle, not just the model name on the tailgate. A GLC300 with 18-inch wheels needs a different tire than one with 19- or 20-inch wheels, and a coupe rear application should not be treated like a standard square setup.
What size rim does a 2017 Mercedes-Benz Trucks GLC300 use?
The 2017 Mercedes-Benz Trucks GLC300 uses 18-inch, 19-inch, and 20-inch rim diameters depending on configuration. The 235/60R18 size fits an 18-inch rim, 235/55R19 fits a 19-inch rim, and both 255/45R20 and 285/40R20 are built for 20-inch wheels.
Rim diameter is the first fitment point to confirm because a tire must match the wheel exactly. It also helps clarify whether the vehicle has a standard wheel package or a 20-inch setup, and on the coupe, whether the front and rear wheels are part of a staggered arrangement.
Why does the 2017 Mercedes-Benz Trucks GLC300 have more than one tire size?
More than one tire size appears on the 2017 Mercedes-Benz Trucks GLC300 because the model was offered with different wheel packages and body configurations. Standard SUV versions can use 18-, 19-, or 20-inch sizes, while the coupe can use a staggered 20-inch front-and-rear combination with different widths.
That means tire selection should follow the vehicle's actual setup rather than a one-size-fits-all assumption for every GLC300. Looking at the wheels already installed, checking front and rear sizes on a coupe, and matching the replacement tire to that configuration will prevent ordering the right diameter in the wrong fitment.
Choosing the Right Tire
What should I consider when choosing a 255/45R20 tire for a 2017 Mercedes-Benz Trucks GLC300?
Start with fitment basics: the tire should be 255/45R20 and mounted on the correct 20-inch wheel application for the 2017 Mercedes-Benz Trucks GLC300. Within that size, available choices differ by brand, tire series, sidewall style, and rim-width specification, so the decision becomes more detailed than simply matching the size code.
A buyer choosing among 255/45R20 options should compare how the tire will be used and how it should look on the vehicle. Blackwall keeps a contemporary presentation, while raised white letter and Redline create a more expressive appearance, and checking wheel width compatibility helps narrow the field to suitable choices.
What sidewall styles are available for 2017 Mercedes-Benz Trucks GLC300 tires?
For the 2017 Mercedes-Benz Trucks GLC300, sidewall style variation appears in the 255/45R20 size. Available options include Blackwall, RWL, which is raised white letter, and Redline, giving 20-inch applications more appearance variety than a plain replacement-only selection.
Sidewall style does not change the basic size requirement, but it can strongly influence the vehicle's presentation. Buyers using 20-inch wheels can decide whether they want a more understated look with Blackwall or a more distinct visual statement with raised white letters or a Redline treatment.
What brands offer tires for the 2017 Mercedes-Benz Trucks GLC300?
Brand choice is available in the 255/45R20 fitment for the 2017 Mercedes-Benz Trucks GLC300, where BFGoodrich, Nitto, and Pro-Trac all appear. Those options also span multiple tire series, giving buyers more than one path within the same primary 20-inch size.
Brand should be weighed alongside the rest of the tire's specifications rather than treated as the only deciding factor. Tire series, sidewall style, and wheel-width compatibility can matter just as much, especially when the goal is to match the GLC300's actual setup and the look the owner wants.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2017 Mercedes-Benz Trucks GLC300?
Yes. Modifications can change what fits on a 2017 Mercedes-Benz Trucks GLC300 even when the tire size matches a known factory wheel package. Aftermarket wheels, changes in wheel width or offset, suspension lowering, and body or brake-clearance changes can all affect how a tire sits and turns.
A GLC300 that has been altered should be checked as an individual vehicle before replacement tires are chosen. Wheel diameter still has to match the tire, but clearance at the fender, inner wheelhouse, and steering lock should also be reviewed, especially on 20-inch and staggered coupe setups.
What should I inspect before driving a 2017 Mercedes-Benz Trucks GLC300 on new tires?
Before regular road use, inspect tire pressure, bead seating, valve stems, wheel condition, and the clearance around the tire at full steering lock. It is also worth checking that the front and rear sizes are correct on any staggered 20-inch coupe setup so the vehicle is not accidentally running a mismatched arrangement.
A short follow-up inspection after the first miles is also useful. Looking for air loss, rubbing marks, vibration, or uneven contact can catch installation or fitment issues early, and that is especially important on vehicles with optional wheel packages or any prior wheel and suspension changes.
What should I check before a longer drive in a 2017 Mercedes-Benz Trucks GLC300?
Before a longer drive, confirm that all four tires are the correct sizes for the vehicle's wheel package, set pressures to the vehicle's requirements, and inspect for cuts, bulges, cracking, and unusual wear. On a coupe with staggered 20-inch fitment, make sure the front and rear tires have not been mixed.
Longer trips also make it worthwhile to review tread condition and look for any signs of slow air loss from a nail, damaged valve stem, or wheel issue. A GLC300 that has sat for extended periods should get extra attention, since low-use vehicles can develop age and condition problems even without heavy mileage.
