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Compare the2024 Mercedes CLAVS 2024 Audi A3

2024 Mercedes CLA
2024 Audi A3

Safety

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The CLA offers an optional Surround View System to allow the driver to see objects all around the vehicle on a screen. The A3 only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

The CLA has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. A system to reveal vehicles in the A3’s blind spot costs extra.

To help make backing out of a parking space safer, the CLA has standard Rear Cross-Traffic Alert and Active Brake Assist automatically engages the brakes to help avoid a collision. Audi charges extra for Rear Cross-Traffic Assist on the A3.

The CLA’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The A3 doesn’t offer a driver alert monitor.

Both the CLA and the A3 have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available all wheel drive and lane departure warning systems.

Warranty

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There are over 25 percent more Mercedes dealers than there are Audi dealers, which makes it easier should you ever need service under the CLA’s warranty.

Reliability

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J.D. Power and Associates’ 2023 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Audi vehicles. With 20 fewer problems per 100 vehicles, JD Power ranks Mercedes higher than Audi.

J.D. Power and Associates’ 2022 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than Audi With 37 fewer problems per 100 vehicles in the first three years of ownership, J.D. Power ranks Mercedes higher than Audi.

Engine

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The CLA’s 2.0 turbo 4-cylinder hybrid produces 20 more horsepower (221 vs. 201) and 37 lbs.-ft. more torque (258 vs. 221) than the A3’s 2.0 turbo 4-cylinder hybrid.

As tested in Car and Driver the Mercedes CLA is faster than the Audi A3:

CLA

A3

Zero to 60 MPH

5.6 sec

6 sec

Zero to 100 MPH

15 sec

16.1 sec

5 to 60 MPH Rolling Start

6.1 sec

6.8 sec

Quarter Mile

14.2 sec

14.6 sec

Speed in 1/4 Mile

97 MPH

95 MPH

Top Speed

130 MPH

127 MPH

Transmission

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An eight-speed automatic (SMG) is standard on the Mercedes CLA, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the A3.

Brakes and Stopping

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For better stopping power the CLA’s brake rotors are larger than those on the A3:

CLA

A3

Front Rotors

13 inches

12 inches

Rear Rotors

12.6 inches

10.7 inches

The CLA stops much shorter than the A3:

CLA

A3

70 to 0 MPH

166 feet

181 feet

Car and Driver

Tires and Wheels

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For better ride, handling and brake cooling the CLA has standard 18-inch wheels. Smaller 17-inch wheels are standard on the A3. The CLA’s optional 19-inch wheels are larger than the 18-inch wheels optional on the A3.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the CLA can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The A3 doesn’t offer run-flat tires.

Suspension and Handling

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The CLA’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 A3 doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the CLA’s wheelbase is 3.9 inches longer than on the A3 (107.4 inches vs. 103.5 inches).

For better handling and stability, the track (width between the wheels) on the CLA is 2.8 inches wider in the front and 3.5 inches wider in the rear than on the A3.

Chassis

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The design of the Mercedes CLA amounts to more than styling. The CLA has an aerodynamic coefficient of drag of .27 Cd. That is lower than the A3 (.29) and many sports cars. A more efficient exterior helps keep the interior quieter and helps the CLA get better fuel mileage.

Passenger Space

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Because it has more passenger and cargo room, the EPA rates the CLA a Compact car, while the A3 is rated a Subcompact.

The CLA has 1.7 inches more front headroom, .6 inches more front legroom, .3 inches more front shoulder room and 1 inch more rear shoulder room than the A3.

Cargo Capacity

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The CLA has a larger trunk than the A3 (11.6 vs. 10.9 cubic feet).

Ergonomics

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The CLA has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The A3 doesn’t offer a remote starting system.

Unlike the driver-only memory seat and mirrors optional at extra cost in the A3, the CLA has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The CLA’s standard easy entry and exit feature glides the driver’s seat back, making it easier for the driver to get in and out. The A3 doesn’t offer an easy entry system.

The CLA offers an optional heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The A3 doesn’t offer a heads-up display.

Heated windshield washer nozzles are optional on the CLA to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The A3 doesn’t offer heated windshield washer nozzles.

To help drivers avoid possible obstacles, the CLA offers optional cornering lights to illuminate around corners when the turn signals are activated. The A3 doesn’t offer cornering lights. The CLA also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

The CLA’s sun-visors swivel front-to-side to block glare from the side windows. The A3’s visors are fixed into the windshield header.

On extremely cold winter days, the CLA’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The A3 doesn’t offer a heated steering wheel.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes CLA has a standard wireless phone charging system (Qi) in the center console. Wireless charging costs extra on the A3.

The CLA’s Active Parking Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The A3’s automatic parking system requires operating the brakes and transmission to safely park.

Recommendations

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J.D. Power and Associates rated the CLA first among small premium cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The A3 isn’t in the top three.

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