The new GLA is equipped with comfort seats as standard. They are upholstered in ARTICO man-made leather and three-dimensionally embossed fabric in black. They are also optionally available in the trendy sagegrey colour. The Progressive equipment variant offers three interior colours: black, macchiato beige and sagegrey. In the AMG Line, the standard seat cover in ARTICO man-made leather/microfibre MICROCUT is now also available in bahia brown. A total of four upholstery colours are available in the AMG Line: black, bahia brown, sagegrey and the new shade red pepper combined with black. The fabric covering of the comfort seat is made of 100% recycled materials. In the case of the ARTICO/MICROCUT seat cover, this proportion is 65% in the seat mirror and 85% in the bottom fabric.

Mercedes-Benz has significantly upgraded the standard equipment of the GLA and tailored the offer logic even more precisely to specific customer wishes. For example, in addition to the leather steering wheel and LED front headlights, the basic equipment already includes Highbeam Assist, a backup camera and the USB package. From the Progressive equipment variant onwards, customers also receive the Parking Package and the Mirror Package. Further functional equipment is bundled into packages based on real customer behaviour. In terms of design features such as colours, upholstery, trim and wheels, those interested can configure the vehicles individually.

The GLA now also features the latest generation of MBUX – with newly designed display styles: while "Classic" provides all relevant driver information, "Sporty" impresses with the dynamic rev counter. "Discreet" reduces the displays to the essential content. In combination with the three Navigation, Assistance and Services modes plus the 10 colour worlds of Ambient Light, there are numerous individualisation options. All previous functions such as Media, Phone, Vehicle etc. are still available. They can be conveniently operated via the touchscreen or the finger pads on the steering wheel.

The revision of the telematics system focused on a new design and improved performance. A new feature is the ability to connect wirelessly with smartphones via Apple CarPlay or Android Auto Wireless. For further connectivity, the GLA now has an additional USB-C port and increased USB charging power. All USB ports are now illuminated.

By activating online services in the Mercedes me app , the intelligent voice assistant becomes even more capable of dialogue and learning. The system gets to know the driver and remembers their typical settings or routes. At the appropriate moment, it suggests personalised infotainment, comfort and vehicle functions – precisely tailored to the respective driving situation. The driver can, of course, reject this suggestion with the “Do not suggest now” function, or permanently delete it with “Do not suggest again”. The vehicle will remember these wishes. Certain actions can be triggered even without saying "Hey Mercedes". In addition, the voice assistant can explain vehicle functions. The audio "Tourguide" adds an exciting feature to the travel information as part of the "MBUX Voice Assistant" from Mercedes me – initially exclusively in Germany. When the "Hey Mercedes, start Tourguide" voice command is given, MBUX reads out interesting facts about places of interest along the route. The system responds to the approximately 3,400 brown signs along German motorways.

The optional Burmester® surround sound system, in conjunction with the latest MBUX generation, now features the immersive Dolby Atmos audio experience, which gives music more space, clarity and depth. In addition, Dolby Atmos adapts to any playback environment, meaning fans can listen to music with unparalleled clarity that matches the artist’s original vision from the studio.

With the optional individualisation package for Mercedes me connect services, a new digital extra is also making its way into the GLA. A selection of mini-games specially developed for the touchscreens and the touch control buttons on the steering wheel turn the compact SUV into a mobile games console: those who have a charging stop or want to pass time waiting can play alone or compete with fellow passengers. Currently, classic games such as Sudoku, Shuffle Puck, Pairs, Match 3 and a quiz are available.

The new GLA models also step up in terms of safety assistance. An upgrade of the Driving Assistance package enables more comfortable control of the Lane Keeping Assist through the Active Steering Control. The next generation of the Parking package also supports longitudinal parking. And it offers 360-degree visualisation for camera-assisted parking. The Trailer Manoeuvring Assist is also available for the GLA for the first time. It facilitates reverse manoeuvring with camera support. The prerequisite is the trailer hitch with ESP® trailer stabilisation in conjunction with the Parking Package with 360-degree camera.

To further reduce consumption and emissions, the petrol engines in the new GLA are electrified throughout. The range includes four-cylinder units with seven- or eight-speed DCT dual-clutch transmissions as standard equipment. The mild hybrids are equipped with an additional 48-volt on-board power supply for the belt-driven starter-generator. Its briefly available additional power of 10 kW supports agility when starting or is used for quick boosting. The starter-generator also increases comfort: in addition to low-vibration and low-noise engine starting, it also enables coasting with the combustion engine switched off. In addition, it recuperates during braking and acceleration processes – and thus supplies the 12-volt on-board network as well as the 48-volt battery with electrical energy.