2019 Audi Q5 vs. 2019 Mercedes GLC Coupe

Detailed Review, Specifications & Comparison

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Safety

Both the Q5 and GLC Coupe have child safety locks to prevent children from opening the rear doors. The 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 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 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 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 Q5’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 Q5’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 Q5 and the GLC Coupe have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, 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.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and its standard front crash prevention system, the Insurance Institute for Highway Safety grants the Q5 the rating of “Top Pick” for 2017, a rating granted to only 139 vehicles tested by the IIHS. The GLC Coupe has not been tested, yet.

Warranty

The Q5’s corrosion warranty is 7 years longer than the GLC Coupe’s (12 vs. 5 years).

Reliability

The Audi Q5’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 Q5’s reliability 38 points higher than the GLC Coupe.

J.D. Power and Associates’ 2018 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 13th in reliability, above the industry average. With 6 more problems per 100 vehicles, Mercedes is ranked 15th.

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.

Engine

The Q5’s 2.0 turbo 4 cyl. produces 7 more horsepower (248 vs. 241) than the GLC 300 Coupe’s standard 2.0 turbo 4 cyl.

As tested in Motor Trend the Audi Q5 is faster than the GLC 300 Coupe 2.0 turbo 4 cyl.:

 

Q5

GLC Coupe

Zero to 60 MPH

5.9 sec

6.7 sec

Quarter Mile

14.5 sec

15.2 sec

Speed in 1/4 Mile

94.6 MPH

89.6 MPH

Fuel Economy and Range

On the EPA test cycle the Q5 Auto gets better city fuel mileage than the GLC 300 Coupe (22 city/27 hwy vs. 21 city/27 hwy).

Regenerative brakes improve the Q5’s fuel efficiency by converting inertia back into energy instead of wasting it. The GLC Coupe doesn’t offer a regenerative braking system.

To lower fuel costs and make buying fuel easier, the Audi Q5 uses regular unleaded gasoline (premium recommended for maximum performance). The GLC Coupe requires premium, which can cost 20 to 55 cents more per gallon.

The Q5 has 1.1 gallons more fuel capacity than the GLC Coupe (18.5 vs. 17.4 gallons), for longer range between fill-ups.

Transmission

The Q5 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 GLC Coupe doesn’t offer an SMG or a conventional manual transmission.

The Q5’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The GLC Coupe doesn’t offer launch control.

Brakes and Stopping

The Q5 stops shorter than the GLC Coupe:

 

Q5

GLC Coupe

 

60 to 0 MPH

136 feet

137 feet

Motor Trend

Chassis

The design of the Audi Q5 amounts to more than styling. The Q5 has an aerodynamic coefficient of drag of .32 Cd. That is significantly lower than the GLC Coupe (.369) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the Q5 get better fuel mileage.

Passenger Space

The Q5 has 2.8 inches more front headroom, .2 inches more front legroom, .4 inches more front shoulder room, 1 inch more rear headroom, .6 inches more rear legroom and .7 inches more rear shoulder room than the GLC Coupe.

Cargo Capacity

The Q5 has a much larger cargo volume with its rear seat up than the GLC Coupe with its rear seat up (25.1 vs. 17.6 cubic feet). The Q5 has a much larger cargo volume with its rear seat folded than the GLC Coupe with its rear seat folded (53.1 vs. 49.4 cubic feet).

Towing

The Q5’s standard towing capacity is much higher than the GLC Coupe’s (4400 vs. 3500 pounds).

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Audi service is better than Mercedes. J.D. Power ranks Audi third in service department satisfaction. With a 3% lower rating, Mercedes is ranked 6th.

Economic Advantages

Insurance will cost less for the Q5 owner. The Complete Car Cost Guide estimates that insurance for the Q5 will cost $715 less than the GLC Coupe over a five-year period.

The Q5 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the Q5 will retain 52.7% to 53.4% of its original price after five years, while the GLC Coupe only retains 45.7% to 47.57%.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Audi Q5 will be $6871 to $14495 less than for the Mercedes GLC Coupe.

Recommendations

Consumer Reports® recommends the Audi Q5, based on reliability, safety and performance.

The Audi Q5 outsold the Mercedes GLC by 1769 units during the 2018 model year.

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

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