Compare the2025 Mercedes GLBVS 2025 Acura MDX

The GLB’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The MDX doesn’t offer pre-crash pretensioners.

When descending a steep, off-road slope, the GLB’s standard Downhill Speed Regulation allows you to creep down safely. The MDX doesn’t offer Downhill Speed Regulation.

Both the GLB and MDX have rear cross-traffic warning, but the GLB has Active Brake Assist (automatically applies the brakes) to better prevent a collision when backing near traffic. The MDX’s Rear Cross Traffic Monitor doesn’t automatically brake.

Both the GLB and the MDX have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, front wheel drive, 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, driver alert monitors, available all wheel drive, lane departure warning systems and around view monitors.

There are over 41 percent more Mercedes dealers than there are Acura dealers, which makes it easier should you ever need service under the GLB’s warranty.

A hardened steel chain, with no maintenance needs, drives the camshafts in the GLB’s engine. A rubber cam drive belt that needs periodic replacement drives the MDX’s camshafts. If the MDX’s belt breaks, the engine could be severely damaged when the pistons hit the opened valves.

As tested in Motor Trend the Mercedes GLB is faster than the Acura MDX V6:

On the EPA test cycle the GLB gets better mileage than the MDX:

Regenerative brakes improve the GLB’s fuel efficiency by converting inertia back into energy instead of wasting it. The MDX doesn’t offer a regenerative braking system.

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes GLB higher (6 out of 10) than the Acura MDX (4). This means the GLB produces up to 12.1 pounds less smog-producing pollutants than the MDX every 15,000 miles.

The GLB offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The MDX doesn’t offer an SMG or a conventional manual transmission.

The GLB stops shorter than the MDX:

The GLB’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The MDX doesn’t offer drift compensation steering.

The GLB 250 4MATIC handles at .83 G’s, while the MDX SH-AWD pulls only .82 G’s of cornering force in a Motor Trend skidpad test.

For better maneuverability, the GLB’s turning circle is 2.1 feet tighter than the MDX’s (38.4 feet vs. 40.5 feet).

For greater off-road capability the GLB has a greater minimum ground clearance than the MDX (7.9 vs. 7.3 inches), allowing the GLB to travel over rougher terrain without being stopped or damaged.

The Mercedes GLB may be more efficient, handle and accelerate better because it weighs about 650 to 900 pounds less than the Acura MDX.

The GLB is 1 foot, 4 inches shorter than the MDX, making the GLB easier to handle, maneuver and park in tight spaces.

The GLB is 6.5 inches narrower than the MDX, making the GLB easier to handle and maneuver in traffic.

The GLB has 2.2 inches more front headroom and 1.2 inches more rear headroom than the MDX.

The power windows standard on both the GLB and the MDX have locks to prevent small children from operating them. When the lock on the GLB is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The MDX prevents the driver from operating the other windows just as it does the other passengers.

The GLB’s standard Keyless-Go allow 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. Keyless Access System standard on the MDX doesn’t offer a sensor on the rear doors, so you’ll have to reach a front handle to unlock the rear door.

The GLB’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The MDX’s standard intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

Heated windshield washer nozzles are optional on the GLB to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The MDX doesn’t offer heated windshield washer nozzles.

To help drivers avoid possible obstacles, the GLB offers optional cornering lights to illuminate around corners when the turn signals are activated. The MDX doesn’t offer cornering lights. The GLB also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

The Mercedes GLB has power folding mirrors that offer unparalleled convenience while maneuvering in tight places or parked. With the mirrors folded it’s easier to walk past and help prevent parking damage. The mirrors can be quickly unfolded when the driver is ready to leave. Power folding mirrors costs extra on the MDX.

The GLB’s Active Parking Assist can parallel park by itself, stopping and changing direction automatically. The MDX doesn’t offer an automated parking system.

The GLB will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the GLB will retain 61.32% of its original price after five years, while the MDX only retains 50.63% to 53.63%.