The 2023 Mercedes-Benz S500 sits at the modern luxury end of the Mercedes-Benz sedan lineup, pairing flagship comfort and technology with the kind of wheel-and-tire packages that can change noticeably by setup. On this car, tire selection is not a one-size-fits-all decision, because the S500 appears with multiple radial sizes across 19-, 20-, and 21-inch rims, including staggered front and rear applications. That makes the real choice less about vintage-style construction and more about confirming the exact wheel package, then comparing available tire series and sidewall treatments where options exist. For road manners, appearance, and proper fitment, the first step is matching the tire to the car's actual front and rear configuration.
Which Tire Size Is Right for The 2023 Mercedes-Benz S500
The 2023 Mercedes-Benz S500 uses five primary tire sizes, and the right one depends on the exact wheel package and whether the car is using a square or staggered setup. Sizes vary by sub-model position and rim diameter, so the first thing to confirm is whether the car is on 19-, 20-, or 21-inch wheels and whether the front and rear tires are the same size.
255/40R20 is a metric radial size that uses a 255-millimeter section width, a 40-series aspect ratio, and a 20-inch rim. On the 2023 Mercedes-Benz S500, it serves as a primary radial fitment and appears in both the standard 4Matic setup and the 4Matic Front application. Available choices in this size are limited but include a BFGoodrich g-Force Phenom T/A blackwall tire. It is the size to evaluate when the car has a 20-inch front or square wheel package, rather than the larger-width rear staggered sizing.
255/45R19 is a metric radial size with a 255-millimeter section width, a 45-series profile, and a 19-inch rim diameter. On the 2023 Mercedes-Benz S500, this size belongs to the 4Matic fitment and points to a 19-inch wheel configuration rather than the available 20- or 21-inch packages. Its meaning is straightforward for a modern luxury sedan owner: the tire must match both the 19-inch wheel and the intended overall setup of the car. Before choosing any replacement, confirm that the S500 still carries its original 19-inch wheels and has not been changed to a staggered package.
255/35R21 is a metric radial size that combines a 255-millimeter section width with a lower 35-series profile on a 21-inch rim. For the 2023 Mercedes-Benz S500, this size is used on the 4Matic Front application, where it works as part of a larger-diameter staggered arrangement. The lower-profile format signals that front fitment needs to be matched carefully to the rear size and wheel diameter already on the car. This is the size to check when the S500 is equipped with 21-inch front wheels rather than a 19-inch or 20-inch setup.
285/30R21 is a wider metric radial size using a 285-millimeter section width, a 30-series aspect ratio, and a 21-inch rim diameter. On the 2023 Mercedes-Benz S500, it is the rear tire size for the 4Matic Rear setup and belongs with the 255/35R21 front tire in a staggered 21-inch package. Its wider tread and shorter sidewall mean the main concern is matching the rear position correctly instead of treating it as an all-around fitment. Owners should verify that the rear wheels are in fact 21-inch wheels before selecting this size.
285/35R20 is a metric radial size with a 285-millimeter section width, a 35-series profile, and a 20-inch rim. On the 2023 Mercedes-Benz S500, it is used at the rear in the 4Matic Rear configuration, making it part of a staggered setup rather than a universal four-corner size. This size offers the broadest product variety here, including BFGoodrich, Nitto, and Pro-Trac choices in blackwall, raised white letter, and redline styles across g-Force Comp 2 AS, NT555 G2, and Street Pro III lines. It is the correct size to compare when the car has 20-inch rear wheels and the owner wants more selection in appearance or tire series.
Sub-model fitment on the 2023 Mercedes-Benz S500 is tied closely to wheel position and package. Checking whether the car is a standard 4Matic setup or a front and rear staggered application matters before choosing tires, because the sizes and rim diameters are not the same across every configuration.
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2023 Mercedes-Benz S500 4Matic
The 2023 Mercedes-Benz S500 4Matic uses either 255/45R19 or 255/40R20, both in radial construction. That makes wheel diameter the key detail to confirm first, since the correct replacement depends on whether the car is riding on 19-inch or 20-inch wheels.
The 2023 Mercedes-Benz S500 4Matic Front uses either 255/35R21 or 255/40R20 radial tires, depending on the wheel package. For tire selection, the front axle size needs to match the existing staggered setup rather than being chosen in isolation.
The 2023 Mercedes-Benz S500 4Matic Rear uses either 285/30R21 or 285/35R20 in radial construction. That means rear tire choice should be made with the rear wheel diameter and the corresponding front size already on the car in mind.
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 2023 Mercedes-Benz S500 Tires for Sale
Available product choices center on 255/40R20 and especially 285/35R20, with options from BFGoodrich, Nitto, and Pro-Trac. Buyers can compare tire series such as g-Force Phenom T/A, g-Force Comp 2 AS, NT555 G2, and Street Pro III, along with blackwall, raised white letter, and redline sidewall treatments.
These FAQs focus on the tire sizes used on the 2023 Mercedes-Benz S500, how front and rear fitment can differ, and what to compare when choosing among available radial tire options.
Tire Size & Fitment
What tire size fits a 2023 Mercedes-Benz S500?
The 2023 Mercedes-Benz S500 uses several primary tire sizes: 255/45R19, 255/40R20, 255/35R21, 285/35R20, and 285/30R21. All of them are radial sizes, and they are tied to specific wheel packages and, in staggered applications, to front or rear position rather than one universal fitment for every car.
The practical step is to confirm the exact wheel setup already on the car before ordering tires. A 19-inch square setup, a 20-inch arrangement, and a 21-inch staggered setup each call for different sizes, so checking both wheel diameter and whether the front and rear match will prevent choosing the wrong tire.
What size rim does a 2023 Mercedes-Benz S500 use?
The 2023 Mercedes-Benz S500 appears with 19-inch, 20-inch, and 21-inch rim diameters, depending on configuration. That wheel diameter directly determines which tire size belongs on the car, since each primary size is built around one of those three rim diameters.
Wheel diameter should be verified from the actual wheels on the vehicle, not assumed from the model name alone. An S500 with 19-inch wheels uses a different tire size than one equipped with 20-inch or 21-inch wheels, and a staggered package can also mean the front and rear rims share diameter while using different widths.
Why does the 2023 Mercedes-Benz S500 have more than one tire size?
The 2023 Mercedes-Benz S500 has more than one tire size because it was fitted with different wheel packages, including square and staggered arrangements. Some configurations use the same width front and rear, while others use narrower front tires and wider rear tires to match the car's specific setup.
That means the correct replacement tire depends on the exact wheels currently installed on the vehicle. Looking only at the year, make, and model is not enough here; the owner should confirm wheel diameter, check whether the front and rear sizes differ, and then match each axle position correctly before selecting a tire.
Choosing the Right Tire
What should I consider when choosing a 285/35R20 tire for a 2023 Mercedes-Benz S500?
Start by confirming that 285/35R20 is actually the rear size on the car's current 20-inch setup. For the 2023 Mercedes-Benz S500, this size belongs to the rear 4Matic application, and available choices vary by brand, tire series, sidewall style, and in some cases rim-width specification.
Selection then comes down to how the car is used and how the owner wants it to look. BFGoodrich, Nitto, and Pro-Trac offer different takes on the same size, so it helps to compare construction details, sidewall presentation, and wheel compatibility instead of choosing only by the size molded into the sidewall.
What sidewall styles are available for 2023 Mercedes-Benz S500 tires?
Among the available S500 tire options here, sidewall styles include Blackwall, RWL, and Redline. That variety appears most clearly in 285/35R20, where the same basic size can be selected with a more understated look or with a more visual sidewall treatment.
Sidewall style does not change the need to match the correct tire size, wheel diameter, and axle position. Once those fitment basics are confirmed, appearance becomes a real part of the decision, especially on a luxury sedan where wheel presentation matters and where a redline or raised white letter tire creates a very different visual effect.
What brands offer tires for the 2023 Mercedes-Benz S500?
Available tire brands for the 2023 Mercedes-Benz S500 include BFGoodrich, Nitto, and Pro-Trac. Brand choice depends on the exact tire size, with the strongest product variety appearing in 285/35R20 and a more limited but still clear option in 255/40R20.
Brand should be compared alongside tire series, sidewall treatment, and wheel compatibility rather than treated as the only decision point. A buyer choosing a rear 20-inch tire has more room to compare among different product lines, while a front 255/40R20 fitment calls for verifying the size first and then evaluating the narrower set of available choices.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2023 Mercedes-Benz S500?
Yes, modifications can affect tire fitment on a 2023 Mercedes-Benz S500. If the car has aftermarket wheels, altered offsets, suspension changes, or a lowered ride height, the original relationship between tire size, wheel width, and body clearance may no longer match the factory-style setup.
That matters even more on an S500 using low-profile 20- or 21-inch tires, where clearance margins can be tighter. Before replacing tires, check the actual wheel diameter and width already on the car, then inspect for room at the fender, inner liner, and suspension components during straight-ahead and full-lock steering positions.
What should I inspect before driving a 2023 Mercedes-Benz S500 on new tires?
Before driving a 2023 Mercedes-Benz S500 on new tires, confirm that each tire matches the correct axle position, wheel diameter, and intended size for the car's setup. It is also wise to inspect the wheels for damage, verify inflation pressure, and make sure the tires seat properly with no visible rubbing or irregular sidewall shape.
A short road test should be followed by another visual check, especially on staggered applications. Pay attention to steering feel, clearance during turns, and any contact marks near the fenders or suspension. Catching a mismatch early is especially important on modern low-profile tires, where a wrong size can show up quickly in ride quality or interference.
How often should tires on a 2023 Mercedes-Benz S500 be inspected?
Tires on a 2023 Mercedes-Benz S500 should be inspected regularly, not only when they appear worn. A quick visual check every few weeks and before longer drives helps catch uneven wear, air loss, cuts, bulges, or sidewall damage before they become larger problems, especially on lower-profile tire sizes.
Owners should also inspect any time the car hits a pothole, curb, or road debris, since large-diameter wheel packages can be less forgiving of impact damage. Checking tread condition, pressure stability, and any changes in vibration or steering response will help keep the S500's ride quality and tire fitment working as intended.
