Performance Specifications of the 2025 Mercedes-Benz GLB SUV   

Power Meets Precision: Performance Features of the 2025 GLB SUV

With a turbocharged engine, advanced transmission, and available all-wheel drive, the performance specifications of the 2025 Mercedes-Benz GLB SUV reflect a bold step forward in capability. It all starts with the 2.0-liter inline-4 turbo engine, producing 221 horsepower thanks to a twin-scroll turbocharger. This setup gives the GLB rapid response for passing, merging, and uphill climbs. New for 2025, mild hybrid technology adds an electric boost of up to 13 horsepower, helping improve both fuel economy and takeoff power.  

Power is matched with control through the 8G-DCT 8-speed dual-clutch automatic transmission. This advanced gearbox delivers the quick-shifting feel of a manual with the comfort of an automatic. Thanks to its dual-clutch design, it shifts faster than a human can manually, offering a more athletic response when you need it most. The DYNAMIC SELECT system lets you choose from ECO, Sport, and Comfort driving modes, so whether you're in traffic or cruising on open roads, the GLB adapts with the tap of a button.

Shift paddles on the steering wheel also give you full control when you want to drive with a little extra excitement. 

The available 4MATIC® all-wheel drive distributes torque between the front and rear wheels based on grip for added traction and driving confidence. Whether driving in rain, snow, or over loose terrain, this system maximizes stability and handling. Features like Downhill Speed Regulation and a dedicated loose-surface mode add capability when conditions change. A rugged drivetrain and advanced engineering make this GLB a great fit for Arizona’s diverse road conditions.  

Fuel efficiency is also a focus. The ECO Start® /Stop system temporarily shuts off the engine during idle moments, like stoplights or heavy traffic, to conserve fuel and reduce emissions. Once you lift your foot off the brake, the engine restarts without delay. If preferred, this function can be turned off manually.  

To support all this performance, the 2025 GLB rides on a 4-wheel independent suspension system. Up front, a 4-link axle promotes stability and smooth cornering, while the rear features a multilink design for improved handling and ride quality. Both systems use lightweight forged aluminum parts to reduce weight and increase rigidity, delivering confident performance with a refined feel.