Compare the2025 Audi Q4 e-tronVS 2024 Mercedes EQB

Both the Q4 e-tron and EQB have child safety locks to prevent children from opening the rear doors. The Q4 e-tron 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 EQB’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 Q4 e-tron has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The EQB 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.

Over 200 people are killed each year when backed over by motor vehicles. The Q4 e-tron has a standard Maneuver Assist that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The EQB doesn’t offer automatic braking for stationary objects directly to the rear.

The Q4 e-tron’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. A lane departure warning system costs extra on the EQB.

Both the Q4 e-tron and the EQB have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, blind spot warning systems, rearview cameras, rear cross-path warning and available around view monitors.

The Audi Q4 e-tron achieved a “Top Safety Pick” rating from the Insurance Institute for Highway Safety (IIHS) for the 2024 model year. This recognition was based on its impressive performance in the small overlap frontal crash test, updated side impact crash test, headlight evaluations, and pedestrian crash prevention testing. The EQB has not yet been evaluated by the IIHS for 2024.

The Q4 e-tron’s corrosion warranty is 7 years longer than the EQB’s (12 vs. 5 years).

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that Audi vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Audi 10 places higher in reliability than Mercedes.

The Q4 e-tron has more powerful engines than the EQB:

On the EPA test cycle the Q4 e-tron gets better mileage than the EQB:

The Q4 e-tron can travel longer on a full charge than the EQB on a full charge:

For better stopping power the Q4 e-tron’s brake rotors are larger than those on the EQB:

For better traction and acceleration, the Q4 e-tron has larger rear tires than the EQB (255/50R19 vs. 235/50R19).

The Q4 e-tron’s standard 255/50R19 rear tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the EQB’s standard 55 series tires. The Q4 e-tron 55 e-tron’s optional 235/45R21 front and 255/40R21 rear tires have a lower 45 series front and 40 series rear profile than the EQB’s optional 50 series tires.

For better ride, handling and brake cooling the Q4 e-tron has standard 19-inch wheels. Smaller 18-inch wheels are standard on the EQB. The Q4 e-tron 55 e-tron’s optional 21-inch wheels are larger than the 20-inch wheels optional on the EQB.

The Q4 e-tron has standard front and rear gas-charged shocks for better control over choppy roads. The EQB’s suspension doesn’t offer gas-charged shocks.

For better maneuverability, the Q4 e-tron 45’s turning circle is 4.9 feet tighter than the EQB’s (33.5 feet vs. 38.4 feet). The Q4 e-tron 50’s turning circle is .7 feet tighter than the EQB’s (37.7 feet vs. 38.4 feet).

The Q4 e-tron 45 e-tron is 3.8 inches shorter than the EQB, making the Q4 e-tron easier to handle, maneuver and park in tight spaces.

The Q4 e-tron has .1 inches more front legroom, .8 inches more front shoulder room and .2 inches more rear shoulder room than the EQB.

The Q4 e-tron has a much larger cargo volume than the EQB with its rear seat up (24.8 vs. 10.7 cubic feet).

Heated windshield washer nozzles are standard on the Q4 e-tron to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. Heated windshield washer nozzles cost extra on the EQB.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Q4 e-tron Prestige has standard headlight washers to keep headlight output high. The EQB doesn’t offer headlight washers.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Q4 e-tron has standard extendable sun visors. The EQB doesn’t offer extendable visors.

Consumer Reports® recommends the Audi Q4 e-tron, based on reliability, safety and performance.