The GLB has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Q3 doesn’t offer a remote starting system.
Unlike the driver-only memory seat and mirrors optional at extra cost in the Q3, the GLB has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, suspension setting, power steering assist, outside mirror angle, climate settings and radio stations and the front passenger seat also adjusts to the new passenger’s preset preferences.
The GLB’s standard easy entry and exit feature glides the driver’s seat back, making it easier for the driver to get in and out. The Q3 doesn’t offer an easy entry system.
The GLB offers an optional heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Q3 doesn’t offer a heads-up display.
The GLB has standard Keyless-Go that allows you to unlock the doors from any outside door handle, open the cargo door, and start the engine, all without removing the key from the pocket or purse. The Audi Advanced Key costs extra on the Q3.
The GLB’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The Q3’s cruise control switches are unlit, making them difficult to find at night and operate safely.
The Q3 Premium Plus’ cornering lamps activate a lamp on the front corner when the turn signal is activated. The GLB’s optional adaptive cornering lights turn the actual headlight unit up to several degrees, depending on steering wheel angle and vehicle speed. This lights a significant distance into corners at any speed.
When the GLB is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The Q3’s mirror doesn’t automatically adjust for backing.
On extremely cold winter days, the GLB’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the vehicle heater warms up. The Q3 doesn’t offer a heated steering wheel.
To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes GLB has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the Q3.
The GLB offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The Q3 doesn’t offer a house-current electrical outlet.
The GLB’s Active Parking Assist can parallel park by itself, stopping and changing direction automatically. The Q3 doesn’t offer an automated parking system.