2019 Audi Q3 vs. 2019 Mercedes GLC Coupe

Detailed Review, Specifications & Comparison

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Safety

Both the Q3 and GLC Coupe have child safety locks to prevent children from opening the rear doors. The Q3 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 GLC Coupe’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 Q3 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 GLC Coupe 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.

When descending a steep, off-road slope, the Q3’s standard Hill Descent Control allows you to creep down safely. The GLC Coupe doesn’t offer Hill Descent Control.

To help make backing safer, the Q3’s optional cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The GLC Coupe doesn’t offer a cross-path warning system.

Both the Q3 and the GLC Coupe have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems and around view monitors.

Warranty

The Q3’s corrosion warranty is 7 years longer than the GLC Coupe’s (12 vs. 5 years).

Reliability

The Audi Q3’s engine uses a cast iron block for durability, while the GLC Coupe’s engines use an aluminum block. Aluminum engine blocks are much more prone to warp and crack at high temperatures than cast iron.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the Q3’s reliability 36 points higher than the GLC Coupe.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than Mercedes vehicles. J.D. Power ranks Audi 8th in reliability, above the industry average. With 10 more problems per 100 vehicles, Mercedes is ranked 13th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Audi vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Audi 10 places higher in reliability than Mercedes.

Fuel Economy and Range

To lower fuel costs and make buying fuel easier, the Audi Q3 uses regular unleaded gasoline. The GLC Coupe requires premium, which can cost 20 to 55 cents more per gallon.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Audi Q3 higher (7 out of 10) than the Mercedes GLC Coupe (5). This means the Q3 produces up to 8 pounds less smog-producing pollutants than the GLC Coupe every 15,000 miles.

Tires and Wheels

The Q3’s optional tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the GLC Coupe’s optional 45 series front tires.

The Q3 has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the GLC Coupe; it requires you to depend on its run-flat tires, which limits mileage and speed before they are repaired. If a run-flat is damaged beyond repair by a road hazard your vehicle will have to be towed.

Chassis

The Q3 is 9.7 inches shorter than the GLC Coupe, making the Q3 easier to handle, maneuver and park in tight spaces.

Cargo Capacity

The Q3 has a much larger cargo volume than the GLC Coupe with its rear seat up (23.7 vs. 17.6 cubic feet).

Ergonomics

To improve rear visibility by keeping the rear window clear, the Q3 has a standard rear wiper. The GLC Coupe doesn’t offer a rear wiper.

Recommendations

Consumer Reports® recommends the Audi Q3, based on reliability, safety and performance.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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