Mercedes GLS-Class (X166) Wheel Lug Patterns, Offset ET & Center Bore Reference

The Mercedes GLS-Class (X166) SUV features specific wheel lug patterns essential for proper wheel fitment. The standard lug pattern combines lug count and pitch circle diameter (PCD) to ensure wheels mount correctly. Along with lug pattern, offset (ET) and center bore dimensions are critical for safe and optimal wheel installation.\n\nFor the GLS-Class (X166) produced between 2016 and 2019, common lug patterns include a 5×112 mm PCD. Offset ET values typically range from 35 to 45 mm, while the center bore is 66.6 mm. Rim sizes vary from 19 to 22 inches depending on trim and wheel design.\n\nReferencing a year-sorted table helps identify the exact wheel lug specifications applicable to your vehicle’s production year. Understanding these details ensures compatibility and maintains driving performance and safety when selecting aftermarket or replacement wheels.\n\nAlways verify wheel lug pattern, offset ET, and center bore against your specific model year to confirm fitment on Mercedes GLS-Class (X166). This data supports informed choices for suspension, clearance, and aesthetic customization.

Year
Make / model / trim Year Tire Rim width (in) Rim diam. (in) Bolt pattern Offset ET Bore DIA Mounting
Mercedes GLS-Class (X166) 350 d 4-matic2019265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 400 4-matic2019265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 500 4-matic2019265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) AMG 63 4-matic2019265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 350 d 4-matic2018265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 400 4-matic2018265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 500 4-matic2018265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) AMG 63 4-matic2018265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 350 d 4-matic2017265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 400 4-matic2017265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 500 4-matic2017265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) AMG 63 4-matic2017265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 350 d 4-matic2016265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 400 4-matic2016265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 500 4-matic2016265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) AMG 63 4-matic2016265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 350 d 4-matic2015265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 400 4-matic2015265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) 500 4-matic2015265/60R188185×1125666.6M14*1,5
Mercedes GLS-Class (X166) AMG 63 4-matic2015265/60R188185×1125666.6M14*1,5

FAQ

What is the standard lug pattern for the Mercedes GLS-Class (X166)?
The standard lug pattern is 5×112 mm PCD for most 2016-2019 Mercedes GLS-Class (X166) models.
Why is offset (ET) important for wheel fitment?
Offset ET determines how far the wheel sits from the hub mounting surface, affecting clearance and handling; for GLS-Class (X166), it usually ranges between 35 and 45 mm.
What is the center bore size for wheels compatible with Mercedes GLS-Class (X166)?
The center bore diameter is typically 66.6 mm, ensuring proper hub-centric fitment.
Tire size calculatorShow

Compare two tire sizes — diameter, speedometer error, and clearance change.

inchmm
Size 1Size 2DiffDiff(%)
Diameter25.0"25.4"0.5"1.89%
Width7.7"8.5"0.8"10.26%
Circumference78.4"79.9"1.5"1.86%
Profile height5.0"4.2"-0.7"-15.08%
Turnover per mile80779314-1.73%
Clearance--+0.2"-
25.0"
7.7"
old tire side
25.5"
8.5"
new tire side
old tire
15"
old rim
5.0"
new tire
17"
new rim
4.2"

Speedometer Error

(First wheel OEM size)

Reading20 mph30 mph40 mph50 mph60 mph70 mph80 mph90 mph
Actual20.430.540.750.961.171.281.491.6