Certified Benz & Beemer Compares 2016 Mercedes Benz C-Class VS 2016 Acura TLX Near Phoenix, AZ

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2016 Mercedes Benz C-Class

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2016 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, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, front parking sensors, available all wheel drive, lane departure warning systems, blind spot warning systems and rearview cameras.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Mercedes C-Class Sedan is safer than the Acura TLX:

C-Class Sedan


Front Seat


5 Stars

5 Stars




Abdominal Force

147 G’s

179 G’s

Into Pole


5 Stars

5 Stars

Max Damage Depth

12 inches

14 inches




New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

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

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without their vehicle while it’s being repaired. Consumer Reports predicts that the C-Class Sedan’s reliability will be 10% better than the TLX.

J.D. Power and Associates’ 2015 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 14th in initial quality, above the industry average. With 15 more problems per 100 vehicles, Acura is ranked 26th, 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 C450 AMG’s standard 3.0 turbo V6 produces 72 more horsepower (362 vs. 290) and 117 lbs.-ft. more torque (384 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


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

Fuel Economy and Range Comparison

On the EPA test cycle the C300 Sedan gets better fuel mileage than the TLX V6:

C-Class Sedan




25 city/34 hwy

21 city/34 hwy



24 city/31 hwy

21 city/31 hwy

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

For better stopping power the C-Class Sedan’s front brake rotors are larger than those on the TLX:

C-Class Sedan

C450 AMG


Front Rotors

13 inches

14.2 inches

12.6 inches

Rear Rotors

11.8 inches

12.6 inches

12.2 inches

The C-Class Sedan’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the TLX are solid, not vented.

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

C-Class Sedan


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 C-Class Sedan’s front to rear weight distribution is more even (55% to 45%) than the TLX’s (60% to 40%). This gives the C-Class Sedan more stable handling and braking.

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 C300 Sedan 4MATIC executes Motor Trend’s “Figure Eight” maneuver quicker than the TLX (26.3 seconds @ .7 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 when your hands are full, the C-Class Sedan’s trunk can be opened just by kicking your foot under the back bumper, leaving your hands completely free. The C-Class Sedan also offers an optional power trunk, which opens and closes automatically by pressing a button or just by kicking your foot under the back bumper. The TLX doesn’t offer a power or hands-free opening 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 in front of the driver’s line of sight, 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.

On extremely cold Winter days, the C-Class Sedan 300’s optional heated steering wheel provides comfort, allowing the driver to steer safely and comfortably before the car heater warms up. The TLX doesn’t offer a heated steering wheel.

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.

J.D. Power and Associates rated the C-Class Sedan second among compact premium cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner’s expectations. The TLX isn’t in the top three.

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 87% during the 2015 model year.

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