2020 Mercedes A-Class vs. 2019 Audi A4

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/02/29

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 and rear 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

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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

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J.D. Power and Associates’ 2019 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 12th in initial quality. With 12 more problems per 100 vehicles, Audi is ranked 22nd.

Engine

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/02/29

As tested in Motor Trend the Mercedes A-Class is faster than the A4 40 TFSI:

A-Class

A4

Zero to 60 MPH

6.8 sec

7 sec

Quarter Mile

15.2 sec

15.4 sec

Speed in 1/4 Mile

94.3 MPH

91 MPH

Fuel Economy and Range

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/02/29

On the EPA test cycle the A 220 4MATIC Auto gets better fuel mileage than the A4 45 TFSI Quattro Auto 2.0 turbo 4 cyl. (248 HP) (24 city/34 hwy vs. 23 city/34 hwy).

Environmental Friendliness

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In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Mercedes A-Class higher (5 out of 10) than the Audi A4 (3 to 5). This means the A-Class produces up to 16.5 pounds less smog-producing pollutants than the A4 every 15,000 miles.

Brakes and Stopping

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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

60 to 0 MPH

130 feet

135 feet

Consumer Reports

60 to 0 MPH (Wet)

134 feet

145 feet

Consumer Reports

Tires and Wheels

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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

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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.

The A 220 executes Motor Trend’s “Figure Eight” maneuver quicker than the A4 Premium (26.5 seconds @ .68 average G’s vs. 27.2 seconds @ .64 average G’s).

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

Chassis

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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

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

Servicing Ease

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J.D. Power and Associates surveys of service recipients show that Mercedes service is better than Audi. J.D. Power ranks Mercedes fifth in service department satisfaction. With a 13% lower rating, Audi is ranked 8th.

Ergonomics

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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 A-Class’ standard easy entry system glides the driver’s seat back, making it easier for the driver to get in and out. The A4 doesn’t offer an easy entry system.

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.

When the A-Class is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The A4’s mirror doesn’t automatically adjust for backing.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Mercedes A-Class offers an optional wireless phone charging system (Qi) in the center console. The A4 doesn’t offer wireless personal charging.

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 A4 doesn’t offer an automated parking system.

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