The 2018 Mercedes-Benz Trucks GLE63 AMG S blends high-performance AMG character with the height, weight, and road presence of a modern luxury SUV. On this vehicle, tire selection is closely tied to the exact wheel setup, especially because the GLE63 AMG S uses multiple radial sizes across 21-inch and 22-inch fitments. The standard 4Matic model uses 295/35R21, while the Coupe configuration uses a staggered front and rear arrangement in either 21-inch or 22-inch form. That makes the key decision less about broad brand preference and more about confirming whether the vehicle is the standard body style or Coupe, then matching the correct size to the correct axle and rim diameter.
Which Tire Size Is Right for The 2018 Mercedes-Benz Trucks GLE63 AMG S
Five tire sizes apply to the 2018 Mercedes-Benz Trucks GLE63 AMG S, and the right one depends first on identifying the exact sub-model and wheel diameter. The standard 4Matic uses a single 21-inch size, while the Coupe uses staggered front and rear radial sizes in either 21-inch or 22-inch form. Before choosing a tire, confirm both the body style and whether the vehicle is on 21-inch or 22-inch wheels.
295/35R21 is a metric radial size with a 295-millimeter section width, a 35-series aspect ratio, and fitment for a 21-inch rim. On the 2018 Mercedes-Benz Trucks GLE63 AMG S, this size applies to the 4Matic configuration rather than the staggered Coupe setup. Its relatively wide footprint and short sidewall suit a high-performance SUV that balances grip, response, and upscale road manners. If the vehicle is not a Coupe and is still on its correct 21-inch wheels, this is the size to verify before comparing tire construction details, brand options, and overall dimensional match.
275/45R21 is a metric radial tire size that combines a 275-millimeter section width with a 45-series profile on a 21-inch rim. On the 2018 Mercedes-Benz Trucks GLE63 AMG S, this size serves as a front fitment for the 4Matic Coupe in the 21-inch staggered arrangement. That means it is paired with a different rear tire size and should be evaluated as part of the complete axle-specific setup rather than as a universal fitment for every GLE63 AMG S. Choosing this size starts with confirming the Coupe front wheel position and retaining the intended front-to-rear balance.
285/40R22 is a metric radial size with a 285-millimeter section width, a 40-series profile, and a 22-inch rim diameter. For the 2018 Mercedes-Benz Trucks GLE63 AMG S, it is used on the front axle of the 4Matic Coupe when equipped with the 22-inch staggered wheel package. The larger rim diameter and axle-specific role make wheel confirmation especially important before comparing available tires. This size should be selected only after verifying that the Coupe is running the 22-inch front setup, since it is not interchangeable with the 21-inch front fitment.
315/40R21 is a very wide metric radial tire size, using a 315-millimeter section width, a 40-series profile, and a 21-inch rim. On the 2018 Mercedes-Benz Trucks GLE63 AMG S, this size belongs to the rear axle of the 4Matic Coupe when the vehicle carries the 21-inch staggered setup. Its role is specific to the rear position, so it should be matched to the correct front size rather than chosen in isolation. Buyers should confirm both wheel diameter and axle placement before selection, especially on vehicles that may have had wheel or tire changes over time.
325/35R22 is a metric radial size with an extra-wide 325-millimeter section width, a 35-series profile, and fitment for a 22-inch rim. On the 2018 Mercedes-Benz Trucks GLE63 AMG S, it is the rear size for the 4Matic Coupe when equipped with the 22-inch staggered combination. This is a specialized rear application rather than a general GLE63 AMG S fitment, and it works as part of a matched front-and-rear package. The practical step is to confirm that the vehicle is a Coupe on 22-inch wheels before comparing tire options in this rear size.
2018 Mercedes-Benz Trucks GLE63 AMG S Sub-Model Tires
Sub-model fitment matters on the 2018 Mercedes-Benz Trucks GLE63 AMG S because the standard 4Matic and the Coupe do not use the same tire arrangement. The main distinction is simple: the standard model uses one 21-inch size, while the Coupe uses staggered front and rear radial sizes in either 21-inch or 22-inch form.
1
2018 Mercedes-Benz Trucks GLE63 AMG S 4Matic
The 2018 Mercedes-Benz Trucks GLE63 AMG S 4Matic uses a single radial tire size rather than a staggered front-and-rear combination. That makes selection more straightforward, but wheel diameter and any past changes to the vehicle should still be checked before choosing a replacement.
2018 Mercedes-Benz Trucks GLE63 AMG S 4Matic Coupe Front
The 2018 Mercedes-Benz Trucks GLE63 AMG S 4Matic Coupe Front uses one of two front radial sizes depending on whether the Coupe is on 21-inch or 22-inch wheels. Front tire selection needs to stay matched to the corresponding rear size and confirmed wheel diameter for the full staggered setup.
2018 Mercedes-Benz Trucks GLE63 AMG S 4Matic Coupe Rear
The 2018 Mercedes-Benz Trucks GLE63 AMG S 4Matic Coupe Rear uses a dedicated rear radial size tied to either the 21-inch or 22-inch staggered package. Rear fitment should be chosen only after confirming the Coupe’s actual wheel diameter and preserving the correct front-to-rear relationship.
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.
Frequently Asked Questions
Tire questions for the 2018 Mercedes-Benz Trucks GLE63 AMG S usually come down to sub-model identification, 21-inch versus 22-inch wheels, and keeping the correct staggered setup in place. The answers below focus on exact size fitment, rim selection, replacement strategy, and road-use checks.
Tire Size & Fitment
What tire size fits a 2018 Mercedes-Benz Trucks GLE63 AMG S?
The 2018 Mercedes-Benz Trucks GLE63 AMG S uses several radial tire sizes depending on the exact configuration. The 4Matic uses 295/35R21. The 4Matic Coupe uses a staggered setup, with 275/45R21 front and 315/40R21 rear on 21-inch wheels, or 285/40R22 front and 325/35R22 rear on 22-inch wheels.
That means the first step is identifying whether the vehicle is the standard 4Matic or the Coupe, then confirming the wheel diameter now on the vehicle. Coupe fitment is axle-specific, so front and rear sizes should not be mixed casually. If the vehicle has aftermarket wheels or has been retired from its original setup, verify the actual tire placard, wheel markings, and current tire sizes before replacing anything.
What size rim does a 2018 Mercedes-Benz Trucks GLE63 AMG S use?
The 2018 Mercedes-Benz Trucks GLE63 AMG S uses either 21-inch or 22-inch rims, depending on the tire size and sub-model setup. The 4Matic uses a 21-inch rim with 295/35R21. The Coupe uses either 21-inch staggered sizes, 275/45R21 front and 315/40R21 rear, or 22-inch staggered sizes, 285/40R22 front and 325/35R22 rear.
Rim diameter needs to be confirmed before any tire purchase because the 21-inch and 22-inch Coupe fitments are not the same arrangement. On a staggered vehicle, front and rear wheels may also differ in width even when the diameter is correct. Checking the wheel stamping and the existing tire sidewall is the safest way to confirm what is actually on the vehicle today.
Why does the 2018 Mercedes-Benz Trucks GLE63 AMG S have more than one tire size?
More than one tire size appears on the 2018 Mercedes-Benz Trucks GLE63 AMG S because the standard 4Matic and the Coupe do not share the same layout. The 4Matic uses one 21-inch size, while the Coupe uses staggered front and rear tires. The Coupe is also found with either a 21-inch or 22-inch wheel package.
That difference matters because tire choice is tied to both body style and axle position. A front Coupe tire should be matched to the correct rear companion size, and a 21-inch setup should not be confused with a 22-inch setup. Confirming the exact sub-model, current wheel diameter, and front-versus-rear placement avoids ordering a tire that belongs to another GLE63 AMG S configuration.
Choosing the Right Tire
What should I consider when choosing a tire for a 2018 Mercedes-Benz Trucks GLE63 AMG S?
Start with the exact fitment: 295/35R21 for the 4Matic, or the correct staggered front and rear sizes for the Coupe in either 21-inch or 22-inch form. This is a radial-only application, so the main decision is not bias-ply versus radial, but matching the correct size to the correct wheel diameter and axle position.
Once the size is confirmed, compare the actual role of the tire on the vehicle. A standard 4Matic replacement is simpler because all four positions use the same size, while the Coupe requires preserving the intended front-to-rear relationship. It also helps to confirm whether the vehicle still has its original wheel setup, since aftermarket wheels can change the fitment picture quickly.
How do I choose between the available tires for a 2018 Mercedes-Benz Trucks GLE63 AMG S?
The best starting point is choosing within the exact size already assigned to the vehicle’s sub-model and wheel package. On this Mercedes-Benz performance SUV, the most important distinction is whether the tire belongs on the standard 4Matic or the staggered Coupe, and then whether it belongs on the front or rear axle.
Comparison becomes much easier after that fitment step is settled. Use wheel diameter, tire size, and axle position as the non-negotiable points, then review the tire’s overall intended role on the vehicle. If the GLE63 AMG S has been modified, or if the current wheels differ from stock appearance, inspect the actual wheel and tire combination before assuming the next replacement should follow the same size printed in a catalog.
What rim-width specifications should I compare when choosing 2018 Mercedes-Benz Trucks GLE63 AMG S tires?
Rim width always matters when selecting replacement tires, especially on wide, low-profile AMG SUV fitments such as 295/35R21, 315/40R21, and 325/35R22. Even when the rim diameter is correct, the wheel still needs to suit the tire’s approved width range so the tire maintains its intended shape and seating on the wheel.
That check becomes even more important on Coupe models with staggered front and rear sizes because wheel widths may differ between axles. The practical approach is to verify the actual wheel dimensions on the vehicle before ordering tires, particularly if it has aftermarket wheels. Diameter alone is not enough; the wheel must also be appropriate for the exact tire size being installed.
Restoration & Appearance
Does correct tire fitment matter for a 2018 Mercedes-Benz Trucks GLE63 AMG S restoration?
Correct tire fitment still matters, even on a late-model high-performance SUV such as the 2018 Mercedes-Benz Trucks GLE63 AMG S. The right size preserves the vehicle’s intended stance and keeps the wheel-and-tire package visually consistent with the standard 4Matic or the Coupe’s staggered arrangement, rather than giving the vehicle an accidental mismatched look.
For an appearance-focused project, start by confirming whether the vehicle should present as a 21-inch or 22-inch setup and whether it is the standard body style or Coupe. That is more important here than period-style sidewall concerns common to older collector vehicles. If originality is especially important, compare the current wheels and tires against marque-specific references before changing sizes.
How does tire construction affect the appearance of a restored 2018 Mercedes-Benz Trucks GLE63 AMG S?
On the 2018 Mercedes-Benz Trucks GLE63 AMG S, construction is straightforward because the fitments are radial. The visual difference comes less from choosing between bias-ply and radial, and more from keeping the correct low-profile, wide-tread proportions associated with the proper 21-inch or 22-inch AMG wheel package for the standard model or Coupe.
That means appearance is shaped mainly by size accuracy and axle placement rather than by vintage-style construction choices. A tire that is too tall, too narrow, or assigned to the wrong wheel diameter can change the vehicle’s presentation quickly. For a clean restoration-oriented result, confirm the exact sub-model and wheel setup first, then stay with the correct front and rear sizing relationship.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Mercedes-Benz Trucks GLE63 AMG S?
Yes. Modifications can change tire fitment on a 2018 Mercedes-Benz Trucks GLE63 AMG S even when the vehicle still appears to use the same general wheel diameter. Aftermarket wheels, different wheel widths, altered offsets, lowering changes, or suspension work can all affect how 295/35R21, 275/45R21, 315/40R21, 285/40R22, or 325/35R22 sit in the wheel openings.
That matters most on the Coupe because its staggered setup depends on correct front and rear relationships as well as adequate clearance. A modified vehicle should be checked at full steering lock and through suspension travel before assuming the original size arrangement still works the same way. Wheel markings and actual measured setup are more useful than visual guesswork when replacement time comes.
What should I inspect before driving a 2018 Mercedes-Benz Trucks GLE63 AMG S on new tires?
Before driving on new tires, confirm that each tire matches the correct axle position, size, and rim diameter for the 2018 Mercedes-Benz Trucks GLE63 AMG S configuration. Then inspect inflation pressure, wheel condition, valve stems, and basic clearance around the fenders and suspension. On Coupe models, front and rear placement deserves special attention because the setup is staggered.
A short initial drive should be followed by another quick inspection for any rubbing, air loss, or unusual wear pattern beginning to develop. It also helps to recheck lug torque after installation and keep an eye on ride behavior during the first miles. Vehicles that have sat for long periods benefit from a broader inspection of brakes, bushings, and alignment condition before regular road use.
How should tires on a 2018 Mercedes-Benz Trucks GLE63 AMG S be maintained?
Maintain tires on a 2018 Mercedes-Benz Trucks GLE63 AMG S by checking pressure regularly, inspecting tread and sidewalls for cuts or bulges, and watching for irregular wear that could point to alignment or suspension issues. Because these are wide, low-profile radial sizes, proper inflation and prompt attention to damage are especially important for both ride quality and even wear.
Stored or lightly used vehicles still need routine inspection because age and inactivity can matter as much as mileage. Look for cracking, repeated air loss, and any signs of contact damage from curbs or debris. On Coupe models, keep track of front and rear sizes carefully during service so the staggered arrangement stays intact and replacement decisions remain consistent at the next tire change.
