For enhanced safety, the front seat shoulder belts of the Audi new Q5 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The BMW X3 doesn’t offer height-adjustable seat belts.
Both the new Q5 and X3 have child safety locks to prevent children from opening the rear doors. The new Q5 has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The X3’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.
The new Q5 has standard Secondary Collision Brake Assist, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The X3 doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.
Earlier warning of stopped traffic, traffic signals, dangerous road conditions, weather, or accidents, can keep driver's safer and prevent crashes. The new Q5 has Car-to-X Services, a system that seamlessly communicates important warnings to the driver about impending danger, if they're available. The X3 doesn’t offer a system that can receive automated systems from infrastructure.
The Audi new Q5 offers an optional Top View Camera System and it also offers an optional rear camera washer to make backing always safe, regardless of road dirt or grime, while the BMW X3 doesn’t offer a camera washer, requiring manual cleaning.
Both the new Q5 and X3 have rear cross-traffic warning, but the new Q5 has Rear Cross-Traffic Assist (automatically applies the brakes) to better prevent a collision when backing near traffic. The X3’s Cross Traffic Warning doesn’t automatically brake.
The new Q5’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The X3 doesn’t offer a driver alert monitor.
Both the new Q5 and the X3 have standard driver and passenger frontal airbags, front side-impact airbags, front seat center airbag, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.