Compare the2024 Audi A4 AllroadVS 2022 Mercedes GLC

Safety
Warranty
Reliability
Engine
Fuel Economy and Range
Transmission
Brakes and Stopping
Tires and Wheels
Suspension and Handling
Cargo Capacity
Towing
Servicing Ease
Ergonomics

Safety

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Both the A4 Allroad and GLC have child safety locks to prevent children from opening the rear doors. The A4 Allroad 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’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 Audi A4 Allroad has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The GLC doesn’t offer a front passenger side knee airbag.

The A4 Allroad 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 GLC 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.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the A4 Allroad. But it costs extra on the GLC.

When descending a steep, off-road slope, the A4 Allroad’s standard Hill Descent Control allows you to creep down safely. The GLC doesn’t offer Hill Descent Control.

The A4 Allroad’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 GLC.

Both the A4 Allroad and the GLC have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear 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, rearview cameras, available blind spot warning systems, around view monitors and rear cross-path warning.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Audi A4 Allroad is safer than the Mercedes GLC:

	A4 Allroad	GLC
	Front Seat
STARS	5 Stars	5 Stars
Hip Force	308 lbs.	409 lbs.
	Rear Seat
STARS	5 Stars	5 Stars
Hip Force	777 lbs.	784 lbs.
	Into Pole
STARS	5 Stars	5 Stars
Max Damage Depth	12 inches	13 inches
Hip Force	666 lbs.	787 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

Warranty

The A4 Allroad’s corrosion warranty is 7 years longer than the GLC’s (12 vs. 5 years).

Reliability

The Audi A4 Allroad’s engine uses a cast iron block for durability, while the GLC’s engine uses 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 A4 Allroad’s reliability 20 points higher than the GLC.

From surveys of all its subscribers, Consumer Reports’ January 2023 Auto Issue reports that Audi vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Audi 18 places higher in reliability than Mercedes.

Engine

The A4 Allroad’s 2.0 turbo 4-cylinder hybrid produces 6 more horsepower (261 vs. 255) than the GLC’s 2.0 turbo 4-cylinder.

Fuel Economy and Range

On the EPA test cycle the A4 Allroad gets better mileage than the GLC:

			MPG
A4 Allroad
	AWD	2.0 turbo 4-cyl. Hybrid	23 city/30 hwy
GLC
	RWD	2.0 turbo 4-cyl.	22 city/27 hwy
	AWD	2.0 turbo 4-cyl.	21 city/28 hwy

Regenerative brakes improve the A4 Allroad’s fuel efficiency by converting inertia back into energy instead of wasting it. The GLC doesn’t offer a regenerative braking system.

To lower fuel costs and make buying fuel easier, the Audi A4 Allroad uses regular unleaded gasoline (premium recommended for maximum performance). The GLC requires premium, which can cost on average about 82.8 cents more per gallon.

Transmission

The A4 Allroad 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 doesn’t offer an SMG or a conventional manual transmission.

The A4 Allroad’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 doesn’t offer launch control.

Brakes and Stopping

The A4 Allroad stops shorter than the GLC:

	A4 Allroad	GLC
60 to 0 MPH	119 feet	126 feet	Motor Trend

Tires and Wheels

For better traction, the A4 Allroad has larger tires than the GLC (245/45R18 vs. 235/60R18).

The A4 Allroad’s tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the GLC’s standard 60 series tires.

Suspension and Handling

The A4 Allroad has a standard driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The GLC’s suspension doesn’t offer adjustable shock absorbers.

The A4 Allroad Premium Plus handles at .81 G’s, while the GLC 300 4MATIC pulls only .80 G’s of cornering force in a Motor Trend skidpad test.

The A4 Allroad Premium Plus executes Motor Trend’s “Figure Eight” maneuver 1 seconds quicker than the GLC 300 4MATIC (26.3 seconds @ .69 average G’s vs. 27.3 seconds @ .65 average G’s).

For greater off-road capability the A4 Allroad has a 1.5 inches greater minimum ground clearance than the GLC (6.5 vs. 5 inches), allowing the A4 Allroad to travel over rougher terrain without being stopped or damaged.

Cargo Capacity

The A4 Allroad has a much larger cargo volume with its rear seat up than the GLC with its rear seat up (24.2 vs. 19.4 cubic feet). The A4 Allroad has a much larger cargo volume with its rear seat folded than the GLC with its rear seat folded (58.5 vs. 56.5 cubic feet).

A low lift-over trunk design makes loading and unloading the A4 Allroad easier. The A4 Allroad’s trunk lift-over height is 26.1 inches, while the GLC’s liftover is 28.8 inches.

Towing

The A4 Allroad’s standard towing capacity is much higher than the GLC’s (3968 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 8th in service department satisfaction (above the industry average). With a 16% lower rating, Mercedes is ranked 18th.

Ergonomics

Heated windshield washer nozzles are standard on the A4 Allroad 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 GLC.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The A4 Allroad Prestige has standard headlight washers to keep headlight output high. The GLC doesn’t offer headlight washers.

The A4 Allroad has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the car heater warms up. A heated steering wheel costs extra on the GLC.