2020 Mercedes E-Class Wagon vs. 2020 Audi A7

Detailed Review, Specifications & Comparison

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Safety

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The E-Class Wagon’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 A7 doesn’t offer a driver alert monitor.

Both the E-Class Wagon and the A7 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, available lane departure warning systems, around view monitors and rear cross-path warning.

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 E-Class Wagon’s 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

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The E-Class Wagon’s 3.0 turbo V6 produces 27 more horsepower (362 vs. 335) than the A7’s 3.0 turbo V6 hybrid.

Fuel Economy and Range

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The E-Class Wagon has 1.8 gallons more fuel capacity than the A7 (21.1 vs. 19.3 gallons), for longer range between fill-ups.

Transmission

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A nine-speed automatic is standard on the Mercedes E-Class Wagon, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the A7.

Brakes and Stopping

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For better stopping power the E-Class Wagon’s brake rotors are larger than those on the A7:

E-Class Wagon

A7

Front Rotors

14.2 inches

13.3 inches

Rear Rotors

14.2 inches

13 inches

The E-Class Wagon stops shorter than the A7:

E-Class Wagon

A7

70 to 0 MPH

156 feet

163 feet

Car and Driver

60 to 0 MPH

108 feet

116 feet

Motor Trend

Tires and Wheels

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Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the E-Class Wagon can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The A7 doesn’t offer run-flat tires.

Suspension and Handling

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The rear suspension of the E-Class Wagon uses air springs for a smoother, controlled ride than the A7, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The E-Class Wagon has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The E-Class Wagon’s height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The A7 doesn’t offer a load leveling suspension.

The E-Class Wagon’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 A7 doesn’t offer drift compensation steering.

The E-Class Wagon’s front to rear weight distribution is more even (51.7% to 48.3%) than the A7’s (53.9% to 46.1%). This gives the E-Class Wagon more stable handling and braking.

The E 450 4MATIC Wagon handles at .90 G’s, while the A7 Prestige pulls only .86 G’s of cornering force in a Motor Trend skidpad test.

Passenger Space

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The E-Class Wagon has standard seating for 7 passengers; the A7 can only carry 5.

The E-Class Wagon has .5 inches more front headroom, .4 inches more front legroom, .6 inches more front shoulder room, 2.5 inches more rear headroom and 1.2 inches more rear shoulder room than the A7.

Cargo Capacity

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The E-Class Wagon’s cargo area provides more volume than the A7.

E-Class Wagon

A7

Third Seat Removed

35 cubic feet

24.9 cubic feet

Pressing a switch automatically lowers the E-Class Wagon’s second row seats, to make changing between passengers and cargo easier. The A7 doesn’t offer automatic folding seats.

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 E-Class Wagon 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 A7 doesn’t offer a remote starting system.

The E-Class Wagon’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The A7’s cruise control switches are unlit, making them difficult to find at night and operate safely.

Heated windshield washer fluid is standard on the E-Class Wagon to defrost the washer nozzles and quickly clear ice and frost from the windshield without scraping. The A7 doesn’t offer heated windshield washer fluid.

To improve rear visibility by keeping the rear window clear, the E-Class Wagon has a standard rear wiper. The A7 doesn’t offer a rear wiper.

The E-Class Wagon has a 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The A7 doesn’t offer a house-current electrical outlet.

The E-Class Wagon’s optional Active Parking Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The A7 doesn’t offer an automated parking system.

Model Availability

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The Mercedes E-Class comes in coupe, convertible, sedan and station wagon bodystyles; the Audi A7 isn’t available as a coupe, convertible or station wagon.

Economic Advantages

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Insurance will cost less for the E-Class Wagon owner. The Complete Car Cost Guide estimates that insurance for the E-Class Wagon will cost $1335 to $2555 less than the A7 over a five-year period.

The E-Class Wagon will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the E-Class Wagon will retain 43.65% of its original price after five years, while the A7 only retains 36.74% to 37.64%.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Mercedes E-Class Wagon will be $7050 to $13968 less than for the Audi A7.

Recommendations

© 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 2020/02/18

Consumer Reports® recommends the Mercedes E-Class Wagon, based on reliability, safety and performance.

The E 450/E 53 was chosen as one of Car and Driver’s “Top Ten” for 2 of the last 3 years. The A7 has never been a Car and Driver “Top Ten” pick.

The Mercedes E-Class outsold the Audi A7/S7/RS 7 by over seven to one during the 2019 model year.

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