2023 Mercedes-Benz GLS450 — 4MATIC 22-23 Inch Wheels

The 2023 Mercedes-Benz GLS450 4MATIC 22-23 Inch Wheels shipped with 4 different factory tire sizes, depending on the wheel package it left the factory with (this can also reflect a staggered front/rear setup). Check your tire sidewall or door placard to confirm which one applies to your vehicle.

This trim shipped with more than one tire size (staggered fitment, front/rear, or optional wheel package). Confirm which one matches your vehicle by checking your tire sidewall or door placard.

285/45R22 (Front)

Section width285 mm
Aspect ratio (sidewall height)45% (128.3 mm)
Rim diameter22"
Overall tire diameter~32.1"
Revolutions per mile~628

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325/40R22 (Rear)

Section width325 mm
Aspect ratio (sidewall height)40% (130 mm)
Rim diameter22"
Overall tire diameter~32.2"
Revolutions per mile~626

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285/40R23 (Front)

Section width285 mm
Aspect ratio (sidewall height)40% (114 mm)
Rim diameter23"
Overall tire diameter~32"
Revolutions per mile~631

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325/35R23 (Rear)

Section width325 mm
Aspect ratio (sidewall height)35% (113.8 mm)
Rim diameter23"
Overall tire diameter~32"
Revolutions per mile~631

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What this size means for your Mercedes-Benz GLS450

On the 2023 Mercedes-Benz GLS450 4MATIC 22-23 Inch Wheels, the factory 285/45R22 measures about 32.1″ in overall diameter with a 128.3 mm (5.1″) sidewall, and completes roughly 628 revolutions per mile. Its 45-series aspect ratio gives a low-profile sidewall tuned for sharper handling, common on sport trims and larger-wheel packages. In tire terms it is a large-diameter fitment.

This is a staggered setup: the front axle runs 285/45R22 and the rear runs 325/40R22. The two sizes are not interchangeable, so order each for its correct axle and don't rotate front-to-rear.

Other 2023 Mercedes-Benz GLS450 trims

Mercedes-Benz GLS450 tire sizes by year

See every Mercedes-Benz GLS450 year & trim →

How to read a tire size

A tire size like 225/45R17 breaks down into three parts: the first number is the section width in millimeters (the tire's width from sidewall to sidewall), the second is the aspect ratio — the sidewall's height as a percentage of that width — and the number after the "R" is the rim diameter in inches. A letter prefix (P or LT) indicates Passenger or Light Truck construction; its absence usually means Euro-metric sizing.

Some trucks and off-road tires instead use "flotation" sizing, like 37X12.50R17 — here the numbers are the tire's overall diameter and width in inches directly, with the rim diameter last.

Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.