2019 Mercedes A-Class vs. 2019 Audi A4

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 A4 doesn’t offer a driver alert monitor.

Both the A-Class and the A4 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, lane departure warning systems, blind spot warning systems and around view monitors.

Warranty

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.

Reliability

J.D. Power and Associates’ 2018 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 14th in initial quality, above the industry average. With 13 more problems per 100 vehicles, Audi is ranked 25th, below the industry average.

Fuel Economy and Range

On the EPA test cycle the A 220 4MATIC gets better fuel mileage than the A4 45 TFSI Quattro (25 city/33 hwy vs. 23 city/34 hwy).

Brakes and Stopping

For better stopping power the A-Class’ standard front brake rotors are larger than those on the A4:

 

A-Class

A4

Front Rotors

12.6 inches

12.4 inches

The A-Class stops shorter than the A4:

 

A-Class

A4

 

70 to 0 MPH

153 feet

155 feet

Car and Driver

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 A4 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 A4 doesn’t offer drift compensation steering.

The A 220 4MATIC handles at .95 G’s, while the A4 Prestige Quattro pulls only .90 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the A-Class’ turning circle is 2 feet tighter than the A4’s (36.1 feet vs. 38.1 feet).

Chassis

The A-Class is 7 inches shorter than the A4, making the A-Class easier to handle, maneuver and park in tight spaces.

Passenger Space

The A-Class has 1.4 inches more front headroom and .5 inches more front legroom than the A4.

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 A4 doesn’t offer a remote starting system.

Unlike the driver-only memory seat and mirrors optional at extra cost in the A4, 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.

The A4’s cornering lamps activate a lamp on the front corner when the turn signal is activated. The A-Class’ optional adaptive cornering lights turn the actual headlight unit up to several degrees, depending on steering wheel angle and vehicle speed. This lights a significant distance into corners at any speed.

The A-Class’ optional Active Parking Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The A4 doesn’t offer an automated parking system.

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

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