Compare the2022 Mercedes A-ClassVS 2022 Audi A3

The A-Class 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 A-Class’ 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 A-Class and the A3 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, 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.

There are over 26 percent more Mercedes dealers than there are Audi dealers, which makes it easier should you ever need service under the A-Class’ warranty.

J.D. Power and Associates’ 2021 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Mercedes 25th in initial quality. With 47 more problems per 100 vehicles, Audi is ranked 32nd.

J.D. Power and Associates’ 2021 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 vehicles. J.D. Power ranks Mercedes 15th in reliability. With 5 more problems per 100 vehicles, Audi is ranked 20th.

Both the A-Class and the A3 have a standard automatic start/stop engine feature to stop unnecessary fuel waste and pollution at stop lights and heavy traffic. All A-Class’s have a standard disable switch for the system, so a driver can keep the engine from shutting off when the vehicle stops temporarily.

For better ride, handling and brake cooling the A-Class offers optional 19-inch wheels. The A3’s largest wheels are only 18-inches.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the A-Class 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.

The A-Class’ 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 A-Class’ 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 A-Class is 1 inch wider in the front and 1.3 inches wider in the rear than on the A3.

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

The A-Class has 6 cubic feet more passenger volume than the A3 (93 vs. 87).

The A-Class has 3.5 inches more front headroom, .6 inches more front legroom, .3 inches more front shoulder room, .6 inches more rear headroom and 1 inch more rear shoulder room than the A3.

To make loading groceries and cargo easier when your hands are full, the A-Class’ available trunk can be opened just by kicking your foot under the back bumper, leaving your hands completely free. The A3 doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.

J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Audi. J.D. Power ranks Mercedes 6th in service department satisfaction (above the industry average). With a 5% lower rating, Audi is ranked 12th.

The A-Class 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 A-Class 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.

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

On extremely cold winter days, the A-Class’ 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.

The A-Class’ optional 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.

The Mercedes A-Class outsold the Audi A3/S3/RS 3 by over two to one during the 2021 model year.