Certified Benz & Beemer Compares 2015 Mercedes Benz C-Class VS 2015 Acura TLX Near Scottsdale, AZ

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2015 Mercedes Benz C-Class

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VS

2015 Acura TLX

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 Acura TLX 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 TLX doesn’t offer a driver alert monitor.

Both the C-Class Sedan and the TLX 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 14 percent more Mercedes dealers than there are Acura 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 Initial Quality Study of new car owners surveyed provide the statistics that show that Mercedes vehicles are better in initial quality than Acura vehicles. J.D. Power ranks Mercedes 13th in initial quality, above the industry average. With 16 more problems per 100 vehicles, Acura is ranked 25th, below the industry average.

J.D. Power and Associates’ 2015 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Mercedes vehicles are more reliable than Acura vehicles. J.D. Power ranks Mercedes 7th in reliability, above the industry average. With 5 more problems per 100 vehicles, Acura is ranked 11th.

Engine Comparison

The C300 Sedan’s standard 2.0 turbo 4 cyl. produces 35 more horsepower (241 vs. 206) and 91 lbs.-ft. more torque (273 vs. 182) than the TLX’s standard 2.4 DOHC 4 cyl. The C300 Sedan’s 2.0 turbo 4 cyl. produces 6 lbs.-ft. more torque (273 vs. 267) than the TLX’s optional 3.5 SOHC V6. The C400 Sedan’s standard 3.0 turbo V6 produces 39 more horsepower (329 vs. 290) and 87 lbs.-ft. more torque (354 vs. 267) than the TLX’s optional 3.5 SOHC V6.

As tested in Motor Trend the C300 Sedan is faster than the Acura TLX 4 cyl.:

C-Class Sedan

TLX

Zero to 60 MPH

6.4 sec

7.2 sec

Quarter Mile

14.8 sec

15.6 sec

Speed in 1/4 Mile

93.4 MPH

91.1 MPH

As tested in Motor Trend the C400 Sedan is faster than the Acura TLX V6:

C-Class Sedan

TLX

Zero to 60 MPH

4.7 sec

5.9 sec

Quarter Mile

13.2 sec

14.4 sec

Speed in 1/4 Mile

107.3 MPH

98.4 MPH

Fuel Economy and Range Comparison

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

C-Class Sedan

TLX

2WD

C300/Auto

25 city/34 hwy

21 city/34 hwy

V6

AWD

C300/Auto

24 city/31 hwy

21 city/31 hwy

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.) Acura only offers an automatic engine start/stop system on the TLX V6 SH-AWD.

Brakes and Stopping Comparison

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

C-Class Sedan

TLX

60 to 0 MPH

108 feet

124 feet

Motor Trend

Tires and Wheels Comparison

The C-Class Sedan’s standard tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the TLX’s standard 55 series tires. The C-Class Sedan’s optional 225/40R19 front and 245/35R19 rear tires have a lower 40 series front and 35 series rear profile than the TLX V-6’s 50 series tires.

For better ride, handling and brake cooling the C-Class Sedan offers optional 19-inch wheels. The TLX’s largest wheels are only 18-inches.

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 TLX 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 TLX’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 TLX 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 TLX doesn’t offer drift compensation steering.

For a smoother ride and more stable handling, the C-Class Sedan’s wheelbase is 2.5 inches longer than on the TLX (111.8 inches vs. 109.3 inches).

The C300 Sedan 4MATIC handles at .87 G’s, while the TLX V-6 SH-AWD pulls only .82 G’s of cornering force in a Motor Trend skidpad test.

The C400 Sedan 4MATIC executes Motor Trend’s “Figure Eight” maneuver 1.1 seconds quicker than the TLX (25.9 seconds @ .8 average G’s vs. 27 seconds @ .74 average G’s).

For better maneuverability, the C-Class Sedan’s turning circle is 2 feet tighter than the TLX V-6’s (36.8 feet vs. 38.8 feet). The C-Class Sedan’s turning circle is 2.7 feet tighter than the TLX SH-AWD’s (36.8 feet vs. 39.5 feet).

Chassis Comparison

The C-Class Sedan is 5.8 inches shorter than the TLX, 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 TLX doesn’t offer active grille shutters.

Passenger Space Comparison

The C-Class Sedan has .4 inches more rear headroom and .7 inches more rear legroom than the TLX.

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 TLX doesn’t offer a power trunk.

Ergonomics Comparison

Unlike the driver-only memory system in the TLX, 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.

The C-Class Sedan offers an optional heads-up display which projects speed and navigation instruction readouts onto the windshield, allowing drivers to view information without diverting their eyes from the road. The TLX doesn’t offer a heads-up display.

The power windows standard on both the C-Class Sedan and the TLX have locks to prevent small children from operating them. When the lock on the C-Class Sedan is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The TLX prevents the driver from operating the other windows just as it does the other passengers.

The C-Class Sedan’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The TLX’s standard intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

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 TLX doesn’t offer automatic dimming high beams.

To help drivers see further while navigating curves, the C-Class Sedan offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The TLX doesn’t offer cornering lights.

A power rear sunshade is optional in the C-Class Sedan to help block heat and glare for the rear passengers. The TLX doesn’t offer a rear sunshade.

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 TLX doesn’t offer an automated parking system.

Recommendations Comparison

Motor Trend performed a comparison test in its January 2015 issue and they ranked the Mercedes C300 Sedan 4MATIC higher than the Acura TLX.

The C-Class Sedan was chosen as one of Automobile Magazine’s “All Stars” in 2015. The TLX has never been an “All Star.”

The Mercedes C-Class outsold the Acura TLX by almost four to one during 2014.

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