Mercedes GLS-Class (X166) Tire Sizes & Rim Dimensions by Year and Trim

The Mercedes GLS-Class (X166) offers various tire sizes and rim specifications depending on the model year and trim level. Common tire markings include widths ranging from 285 to 295 mm, aspect ratios typically at 40 or 45, and diameters in 20 to 22 inches. Rim widths correspond accordingly, generally between 9.5 and 11 inches.\n\nFor example, base trims often feature 20-inch wheels with 285/45 tires, while higher trims or AMG packages may include 21- or 22-inch rims paired with wider tires such as 295/40. It's critical to reference the specific year and trim to confirm the exact size for safe replacement or upgrades.\n\nWhen comparing GLS-Class (X166) trims, note that rim width and diameter increase with sportier trims, enhancing handling and aesthetics. Always confirm OEM specifications before selecting tires or wheels to ensure compatibility and preserve driving dynamics.\n\nUsing these guidelines, you can effectively compare rim and tire dimensions across Mercedes GLS-Class (X166) trims and model years to make informed decisions about replacements or upgrades.

For bolt pattern (PCD), offset ET, center bore, and mounting details, open the bolt pattern page for Mercedes GLS-Class (X166).