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8.3

Overall

Scorecard

Critics' Rating: 8.4
Performance: 7.8
Interior: 8.4
Total Cost of Ownership: 7.9
Safety: 9.8
Reliability:
J.D. Power Ratings Logo

2014 Mercedes-Benz M-Class Review

The 2014 Mercedes-Benz M-Class is a solid contender in the luxury midsize SUV class, with a range of powerful engines choices, a cushioned ride, and a top-notch interior. However, the M-Class is not the sportiest model in the class.

Pros & Cons

  • Upscale cabin
  • Potent and efficient available turbodiesel engine
  • Lots of cargo room
  • Rivals are more fun to drive

2014 Mercedes-Benz M-Class Overview

Is the 2014 Mercedes-Benz M-Class a Good Used Car?

You can't go wrong with the M-Class for a comfortable daily driver. It has a cushioned ride and a luxurious cabin that has plenty of features to keep everyone comfortable and entertained. Additionally, the M-Class' reliability and safety scores are comparable to those of most rivals.

The M-Class isn't quite as thrilling to drive as some competitors, but it pairs plenty of engine power with comfortable, composed handling. You can choose from a range of engines, starting with the base V6 (in the ML350) up to a twin-turbocharged V8 (in either the ML550 or ML63 AMG). Models with the base V6 get up to 18 mpg in the city and 23 mpg on the highway. A V8-powered M-Class will get worse fuel economy, but have exceptional power and quick acceleration. The best engine in the range may be the turbodiesel V6 in the ML350 BlueTEC, which combines solid power with excellent fuel economy, getting 20 mpg in the city and 27 mpg on the highway.

Read more about M-Class performance »

Its luxurious cabin is where the M-Class really shines. Throughout the interior, everything is well built, and there are first-rate materials – including some real wood trim – covering every surface. The driver and front passenger have a commanding view of the road ahead, and both rows of seats are comfortable and roomy, offering plenty of head- and legroom. The M-Class has two full sets of LATCH connectors for installing child safety seats on the outboard rear seats, with an additional upper tether on the middle rear seat.

Every M-Class comes with Mercedes' COMAND infotainment system, which you control with a console-mounted knob. It's easy to operate the system, and it has logical menus to help you quickly find the setting you want. Other standard features include a power sunroof, Bluetooth, and a USB port. Some models come with navigation, a rearview camera, active lane keep assist, forward collision warning, and a rear-seat entertainment system. A power liftgate is also standard in all M-Class trims, and there is up to 80.3 cubic feet of overall cargo space, which is more than most luxury midsize competitors offer.

Read more about M-Class interior »

Used 2014 Mercedes-Benz M-Class Prices

Prices for the 2014 M-Class range from around $34,600 to about $70,000, depending on the vehicle's condition, mileage, and location. 

See the Best Used Car Deals »

How Reliable Is the 2014 Mercedes-Benz M-Class?

The M-Class gets a 3.5 out of five for reliability, which is about average for a luxury midsize SUV. A three is considered average among all vehicles.

How Safe Is the M-Class?

The M-Class' safety scores are in line with most rivals. The Insurance Institute for Highway Safety named the 2014 M-Class a Top Safety Pick+, and the National Highway Traffic Safety Administration gave the M-Class a five-star overall rating. The M-Class earned a top score in every crash test category except one, the NHTSA rollover test, in which it earned four out of five stars.

See M-Class safety scores »

Should I Consider Another Used M-Class?

The 2014 model is part of the M-Class' third generation, which began in 2012 and continues through 2017 (though the name was changed to GLE in 2016). The 2012, 2013, and 2014 M-Class models are similar, with a few changes to powertrains. Models from 2012 all come standard with all-wheel drive and are only available with the gas or turbodiesel V6 engines, while 2013 models add a rear-wheel-drive gas variant and two turbocharged V8 models. Forward collision warning is not available in 2012 or 2013 models.

Compare the 2012, 2013, and 2014 M-Class »

Which Used Mercedes-Benz M-Class Is Right for Me?

The best model you can buy is the ML350 BlueTEC, which has the powerful yet fuel-efficient turbodiesel V6 engine, along with leatherette upholstery, heated and power-adjustable front seats, a power sunroof, a power liftgate, dual-zone automatic climate control, the COMAND infotainment system, Bluetooth, and a USB port. If you prefer a gasoline engine, the ML350 has the same features. The ML550 has a similar features list, along with a twin-turbo V8. The ML63 AMG has a more potent version of the V8 and adds features like an air suspension, upgraded leather upholstery, and unique styling elements.

If you buy an M-Class from a Mercedes-Benz dealership, you can get a certified pre-owned model. Mercedes-Benz certified pre-owned vehicles come with the balance of the original four-year/50,000-mile new-car warranty, plus an additional one-year/unlimited-mileage warranty. If the new-car warranty is expired, you’ll just receive the one-year/unlimited-mileage warranty. Every Mercedes-Benz CPO vehicle must pass a 164-point inspection. Additional benefits like towing and roadside assistance may be available, so read the Mercedes-Benz warranty page carefully.

Read more about certified pre-owned vehicles »

We Did the Research for You: 19 Pieces of Data Analyzed

We analyzed 19 different data sets to write this overview, ranging from published professional reviews to crash test scores and reliability ratings. Whether you want to know which M-Class model gets the best fuel economy or has the features you want, we've got all the info right here.

Why You Can Trust Us

Our staff has 75 years of combined experience working in the automotive segment, and we've been ranking cars, trucks, and SUVs for a decade. To ensure our reviews remain unbiased, we don't accept pricey trips or expensive gifts from automakers, and the ads you see on our site are placed by an outside source to further insulate our editorial team.

2014 Mercedes-Benz M-Class and Other Cars to Consider

Which Is Better: 2014 Mercedes-Benz M-Class or 2014 BMW X5?

The BMW X5 and the M-Class have a lot in common: luxurious cabins, powerful engines, and loads of features. However, there are a few differences to bear in mind when cross-shopping these German rivals. The M-Class has higher reliability and safety scores than the X5, and it has more cargo space too. The X5, on the other hand, has notably agile handling for a luxury midsize SUV, and it's available with unique features you can't get in the M-Class (like a night vision camera with pedestrian detection and a third row of seats). Ultimately, either SUV is an excellent choice.

Which Is Better: 2014 Mercedes-Benz M-Class or 2014 Porsche Cayenne?

The Porsche Cayenne lives up to its brand's heritage, and you'll feel like you're driving a sports car rather than a midsize SUV. The Cayenne has a range of powerful engines and poised, controlled handling around turns. Even if sharp performance isn't your thing, the Cayenne's cabin will appeal to you. It's incredibly luxurious, with top-notch materials on every surface and seats that will keep you comfortable even on the longest drives. To top it off, the Cayenne has one of the highest reliability scores in the class, so it should last you for many years. The one downside is the Cayenne's price. You'll pay several thousand dollars more for a Cayenne than an M-Class. Still, the price difference is worth it.

Compare the M-Class, X5, and Cayenne »

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