Certified Benz & Beemer Compares 2015 Mercedes Benz C-Class VS 2015 Audi A6 Near Phoenix, AZ

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2015 Mercedes Benz C-Class

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VS

2015 Audi A6

Safety Comparison

For enhanced safety, the front and rear seat shoulder belts of the Mercedes C-Class Sedan have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision. The Audi A6 doesn’t offer pretensioners for the rear seat belts.

The C-Class Sedan’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 A6 doesn’t offer a driver alert monitor.

The C-Class Sedan has standard mbrace, which uses a global positioning satellite (GPS) receiver and a cellular system to get turn-by-turn driving directions, remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The A6 doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the C-Class Sedan and the A6 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height-adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding and available all wheel drive.

Warranty Comparison

There are over 18 percent more Mercedes dealers than there are Audi dealers, which makes it easier should you ever need service under the C-Class Sedan’s warranty.

Reliability Comparison

J.D. Power and Associates’ 2014 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 second in reliability, above the industry average. With 47 more problems per 100 vehicles, Audi is ranked 19th.

Engine Comparison

The C300 Sedan’s standard 2.0 turbo 4 cyl. produces 21 more horsepower (241 vs. 220) and 15 lbs.-ft. more torque (273 vs. 258) than the A6 2.0T’s standard 2.0 turbo 4 cyl. The C400 Sedan’s standard 3.0 turbo V6 produces 19 more horsepower (329 vs. 310) and 29 lbs.-ft. more torque (354 vs. 325) than the A6 3.0T’s standard 3.0 supercharged V6.

As tested in Car and Driver the C400 Sedan is faster than the A6 3.0T:

C-Class Sedan

A6

Zero to 60 MPH

4.7 sec

5.6 sec

Zero to 100 MPH

11.6 sec

13.7 sec

5 to 60 MPH Rolling Start

5.5 sec

6 sec

Quarter Mile

13.3 sec

14 sec

Speed in 1/4 Mile

107 MPH

101 MPH

Top Speed

136 MPH

129 MPH

Fuel Economy and Range Comparison

On the EPA test cycle the C-Class Sedan AWD gets better fuel mileage than the A6 AWD:

C-Class Sedan

A6

AWD

Turbo 4 cyl./Auto

24 city/31 hwy

20 city/29 hwy

Turbo V6/Auto

21 city/29 hwy

18 city/27 hwy

Supercharged V6

Regardless of its engine, the C-Class Sedan’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) Audi only offers an automatic engine start/stop system on the A6 3.0 T/TDI.

Brakes and Stopping Comparison

The C-Class Sedan stops much shorter than the A6:

C-Class Sedan

A6

70 to 0 MPH

160 feet

171 feet

Car and Driver

Tires and Wheels Comparison

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the C-Class Sedan can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The A6 doesn’t offer run-flat tires.

Suspension and Handling Comparison

The C-Class Sedan has a standard driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The A6’s suspension doesn’t offer adjustable shock absorbers.

The C-Class Sedan has a standard automatic load leveling suspension to keep ride height level with a heavy load or when towing. The A6 doesn’t offer a load leveling suspension.

The C-Class Sedan’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 A6 doesn’t offer drift compensation steering.

For better maneuverability, the C-Class Sedan’s turning circle is 2.2 feet tighter than the A6’s (36.8 feet vs. 39 feet).

Chassis Comparison

The C-Class Sedan is 9.4 inches shorter than the A6, making the C-Class Sedan easier to handle, maneuver and park in tight spaces.

The front grille of the C-Class Sedan uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The A6 doesn’t offer active grille shutters.

Cargo Capacity Comparison

To make loading and unloading groceries and cargo easier, especially for short adults or children, the C-Class Sedan offers an optional power trunk, which opens and closes automatically by pressing a button, or optionally by just kicking your foot under the back bumper, completely leaving your hands free. The A6 doesn’t offer a power trunk.

Ergonomics Comparison

Unlike the driver-only memory system in the A6, the C-Class Sedan offers an optional passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

If the windows are left down on the C-Class Sedan the driver can raise them all using the key in the outside lock cylinder or the keyless remote; on a hot day the driver can lower the windows. The driver of the A6 can’t use the remote to operate the windows.

While driving with high beams on, sensitive light sensors available for the C-Class Sedan detect other vehicles which could be blinded and automatically switch to low beams. The A6 doesn’t offer automatic dimming high beams.

When the C-Class Sedan 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 A6’s mirror doesn’t automatically adjust for backing.

Optional Mercedes-Benz Apps for the C-Class Sedan allows the driver and passengers access to select programs on their smartphones, including finding fuel prices at nearby service stations, searching the internet and other connected activities without taking their eyes off the road or their hands from the wheel. The A6 doesn’t offer factory integrated smartphone program access.

The C-Class Sedan’s 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 A6 doesn’t offer an automated parking system.

Recommendations Comparison

The Mercedes C-Class outsold the Audi A6/S6 by over three to one during the 2014 model year.

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