2019 Acura TLX vs. 2019 Mercedes A-Class

Detailed Review, Specifications & Comparison

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Safety

The TLX V6’s optional pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The A-Class doesn’t offer pre-crash pretensioners.

To help make backing safer, the TLX’s optional cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The A-Class doesn’t offer a cross-path warning system.

Both the TLX and the A-Class have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front 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 blind spot warning systems and around view monitors.

For its top level performance in the IIHS moderate overlap frontal impact, side impact, rear impact, roof-crush crash tests, an “Acceptable” rating in the newer small overlap frontal crash test, and its standard front crash prevention system, the Insurance Institute for Highway Safety grants the TLX its highest rating: “Top Pick Plus” for 2015, a rating granted to only 159 vehicles tested by the IIHS. The A-Class has not been tested, yet.

Warranty

Acura’s powertrain warranty covers the TLX 2 years and 20,000 miles longer than Mercedes covers the A-Class. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the A-Class ends after only 4 years or 50,000 miles.

Reliability

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Acura vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Acura 4 places higher in reliability than Mercedes.

Engine

The TLX’s standard 2.4 DOHC 4 cyl. produces 18 more horsepower (206 vs. 188) than the A-Class’ 2.0 turbo 4 cyl. The TLX’s optional 3.5 SOHC V6 produces 102 more horsepower (290 vs. 188) and 46 lbs.-ft. more torque (267 vs. 221) than the A-Class’ 2.0 turbo 4 cyl.

As tested in Car and Driver the Acura TLX V6 is faster than the Mercedes A 220:

 

TLX

A-Class

Zero to 60 MPH

5.8 sec

6.1 sec

Zero to 100 MPH

14.1 sec

16.9 sec

5 to 60 MPH Rolling Start

6.2 sec

6.8 sec

Quarter Mile

14.2 sec

14.7 sec

Speed in 1/4 Mile

100 MPH

94 MPH

Fuel Economy and Range

An engine control system that can shut down half of the engine’s cylinders helps improve the TLX V6’s fuel efficiency. The A-Class doesn’t offer a system that can shut down part of the engine.

The TLX has 3.7 gallons more fuel capacity than the A-Class (17.2 vs. 13.5 gallons), for longer range between fill-ups.

The TLX has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The A-Class doesn’t offer a cap-less fueling system.

Transmission

A nine-speed automatic is standard on the Acura TLX, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the A-Class.

Tires and Wheels

For better traction, the TLX has larger standard tires than the A-Class (225/55R17 vs. 205/55R17). The TLX A-Spec’s tires are larger than the largest tires available on the A-Class (245/40R19 vs. 205/55R17).

The TLX A-Spec’s tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the A-Class’ 55 series tires.

The TLX has a standard easy tire fill system. When inflating the tires, the vehicle’s integrated tire pressure sensors keep track of the pressure as the tires fill and tell the driver when the tires are inflated to the proper pressure. The A-Class doesn’t offer vehicle monitored tire inflation.

Suspension and Handling

For a smoother ride and more stable handling, the TLX’s wheelbase is 1.9 inches longer than on the A-Class (109.3 inches vs. 107.4 inches).

For better handling and stability, the track (width between the wheels) on the TLX is 1.1 inches wider in the front and 2.2 inches wider in the rear than on the A-Class.

Chassis

The TLX uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The A-Class doesn’t offer active noise cancellation.

Passenger Space

The TLX has .8 inches more front legroom, 2.4 inches more front shoulder room, .6 inches more rear legroom and 1.4 inches more rear shoulder room than the A-Class.

Cargo Capacity

The TLX has a much larger trunk than the A-Class (14.3 vs. 8.6 cubic feet).

Recommendations

The Car Book by Jack Gillis recommends the Acura TLX, based on economy, maintenance, safety and complaint levels.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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