2019 Mercedes A-Class vs. 2019 BMW 3 Series Sedan

Detailed Review, Specifications & Comparison

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Safety

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 3 Series Sedan doesn’t offer a driver alert monitor.

Both the A-Class and the 3 Series Sedan have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, available all wheel drive, lane departure warning systems, blind spot warning systems and around view monitors.

Warranty

There are over 10 percent more Mercedes dealers than there are BMW dealers, which makes it easier should you ever need service under the A-Class’ warranty.

Transmission

The A-Class 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 3 Series Sedan doesn’t offer an SMG or a conventional manual transmission.

Tires and Wheels

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 3 Series Sedan doesn’t offer run-flat tires.

Suspension and Handling

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 3 Series Sedan doesn’t offer drift compensation steering.

For better maneuverability, the A-Class’ turning circle is 1.3 feet tighter than the 3 Series Sedan’s (36.1 feet vs. 37.4 feet). The A-Class’ turning circle is 3.1 feet tighter than the 3 Series Sedan xDrive’s (36.1 feet vs. 39.2 feet).

Chassis

The Mercedes A-Class may be more efficient, handle and accelerate better because it weighs about 300 to 350 pounds less than the BMW 3 Series Sedan.

The A-Class is 6.6 inches shorter than the 3 Series Sedan, making the A-Class easier to handle, maneuver and park in tight spaces.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Mercedes service is better than BMW. J.D. Power ranks Mercedes 6th in service department satisfaction (above the industry average). With a 11% lower rating, BMW is ranked 8th.

Ergonomics

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 3 Series Sedan doesn’t offer a remote starting system.

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

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