2026 Mercedes-Benz GLA Bolt Pattern & Tire Size
The 2026 Mercedes-Benz GLA OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2026 Mercedes-Benz GLA has a 5x112 bolt pattern, an OEM tire size of 235/55R18, and a 66.6mm center bore.
Other years of the Mercedes-Benz GLA
2026 Mercedes-Benz GLA Engine & Trim Levels
Detailed tire and wheel breakdown for the 2026 Mercedes-Benz GLA
Tire geometry â 235/55R18
The 235/55R18 fitted to the 2026 Mercedes-Benz GLA has a section width of 235mm and an aspect ratio of 55%, mounted on a 18-inch rim. That gives a sidewall height of 129.3mm (5.09") and an overall outside diameter of 715.7mm (28.18"). At highway speed this tire completes roughly 445 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2026 Mercedes-Benz GLA while keeping the speedometer accurate, target a 245/48R19 (plus-one). For a softer ride or winter setup, a 225/63R17 (minus-one) keeps the overall diameter within Âą3% of stock, which is the industry tolerance for ABS and stability control to stay calibrated.
Wheel fitment specs
The 2026 Mercedes-Benz GLA uses a 5x112 bolt pattern with a 66.6mm hub bore. Safe rim width range for the OEM tire is 7.0J â 8.0J, and offsets in the ET48 â ET58 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2026 Mercedes-Benz GLA is printed on the driver-side door jamb sticker â always defer to that value, not to the maximum pressure printed on the tire sidewall. Check pressure monthly and before long trips; under-inflation by 20% can reduce tread life by 25%.
OEM Wheel & Tire Specs
Frequently Asked Questions
What tire size does the 2026 Mercedes-Benz GLA GLA250 use?
The 2026 Mercedes-Benz GLA GLA250 uses 235/55R18 tires as standard equipment.
What tire size does the 2026 Mercedes-Benz GLA AMG GLA45 S use?
The 2026 Mercedes-Benz GLA AMG GLA45 S uses 255/40R20 tires as standard equipment.
What is the bolt pattern of the 2026 Mercedes-Benz GLA?
The 2026 Mercedes-Benz GLA has a 5x112 bolt pattern with a center bore of 66.6mm.
What is the wheel offset of the 2026 Mercedes-Benz GLA?
The 2026 Mercedes-Benz GLA has a wheel offset of ET53.
Other Vehicles with 5x112 Bolt Pattern
The following vehicles share the same 5x112 bolt pattern as the 2026 Mercedes-Benz GLA, making wheel interchangeability possible (verify offset and center bore before swapping).