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8.1

Overall

Scorecard

Critics' Rating: 8.5
Performance: 7.6
Interior: 8.6
Total Cost of Ownership: 7.3
Safety: 10.0
Reliability:
J.D. Power Ratings Logo

2015 Mercedes-Benz M-Class Review

The 2015 Mercedes-Benz M-Class is a middle-of-the-pack luxury midsize SUV. It has high safety scores and an above-average reliability rating, but its power and acceleration don't match the rest of the class. 

Pros & Cons

  • High safety scores
  • Good fuel economy with diesel engine
  • Uninspired handling

2015 Mercedes-Benz M-Class Overview

Is the 2015 Mercedes-Benz M-Class a Good Used SUV?

A used 2015 Mercedes M-Class may be a good choice if you want an upscale, roomy SUV with plenty of features and a variety of powertrain options. It's far from the sportiest SUV in the class, but it offers enough power under the hood to be a capable daily driver and deliver a smooth ride.

Used 2015 Mercedes-Benz M-Class Performance and Interior

The 2015 Mercedes M-Class is available with four powertrains that range from a 200-horsepower four-cylinder diesel to a 329-horsepower twin-turbo V6. There is also the high-performance AMG model with a 518-horsepower twin-turbo V8. All M-Class models have a seven-speed automatic transmission. Front-wheel drive is standard with the base ML350 model. All other models have 4MATIC all-wheel drive. Fuel economy ranges from 22 mpg in the city and 29 mpg on the highway with the BlueTEC diesel to 18 mpg in the city and 23 on the highway in the standard ML350. The ML63 AMG gets a measly 13/17 mpg city/highway. 

The ML350 delivers decent power and acceleration for everyday use, but the twin-turbo V6 ML400 is more responsive. Though the diesel M-Class has much less horsepower, its torque gets you moving quickly. The performance AMG model, in comparison, could knock your socks off with its power and acceleration. However, driving dynamics in the M-Class are focused on comfort over performance. Handling isn't particularly agile and the steering can feel light, but you'll be treated to a mostly soft and comfortable ride. 

Read more about M-Class performance »

The 2015 M-Class offers good passenger accommodations all-around. Up front, the comfortable and supportive seats offer a commanding view of the road. Excellent rear legroom means even taller passengers should have a pleasant ride. The rear seats also recline for added comfort. There are two complete sets of LATCH car-seat connectors in the M-Class, with an additional top tether anchor on the rear middle seat. Leatherette upholstery and heated front seats come standard, but other models include leather, ventilated front seats, and multicontour front seats with massage settings. 

All M-Class models feature the Mercedes COMAND infotainment system, which eschews touch-screen functionality in lieu of a physical control knob on the center console. It's easy enough to use, but other buttons on the dashboard provide a shortcut for common functions. Other notable standard features include HD Radio and access to the mbrace telematics system. You may find used M-Class models equipped with amenities like navigation, voice recognition, satellite radio, and either a Harman Kardon or a Bang & Olufsen premium sound system. 

Read more about M-Class interior »

Used 2015 Mercedes-Benz M-Class Prices

Pricing for a used 2015 Mercedes-Benz M-Class ranges from about $36,000 for a base ML350 to a little over $46,000 for an ML400. The performance ML63 AMG should cost around $73,000. Prices vary based on the SUV's features, mileage, condition, and location.

See the Best Used Car Deals »

We Did the Research for You: 30 Reviews Analyzed

To create this 2015 Mercedes-Benz M-Class overview, we compiled and analyzed 30 reviews to summarize the findings of an array of professional automotive journalists. Our review also includes data like safety results, reliability scores, and total cost of ownership predictions.

Why You Can Trust Us

U.S. News & World Report has been ranking and reviewing cars for 10 years, and our editorial staff has decades of automotive industry experience. To ensure we stay impartial, we don't accept expensive incentives or gifts from car companies, and a third party handles our advertising.

How Reliable Is the 2015 Mercedes-Benz M-Class?

According to J.D. Power and Associates, the 2015 M-Class has a predicted reliability score of 3.5 out of five. That’s slightly above average compared to all cars on the market, but most SUVs in the Benz's class rank average or higher for reliability.

Read more about M-Class reliability »

How Safe Is the M-Class?

The 2015 M-Class has high safety scores for its class. It earned the best possible score of Good in all five Insurance Institute for Highway Safety crash tests, making it a 2015 IIHS Top Safety Pick+. 

A forward collision warning system comes standard in the M-Class, but that's the extent of its standard advanced safety features. Available technologies include a rearview camera, adaptive cruise control, lane departure warning, blind spot monitoring, driver drowsiness alert, adaptive headlights, a 360-degree camera, and a semiautonomous parking system. 

See M-Class safety scores »

Should I Consider Another Used M-Class?

2015 was the final year of the M-Class’ production; it was replaced by the 2016 Mercedes-Benz GLE-Class. The M-Class saw few major changes over the last few years of its life, meaning you can likely save some money with an older model. Still, there were some notable improvements for the 2015 model year, including the replacement of the ML350 BlueTEC and ML550 trims with the ML250 BlueTEC and ML400. Both trims received new engines that produce less horsepower but are more fuel-efficient.     

Compare the 2013, 2014, and 2015 M-Class » 

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

The 2015 Mercedes-Benz M-Class is available in four trims: ML350, ML250 BlueTEC, ML400, and the performance ML63 AMG. Each has a different powertrain and some varying features. Your best bet is to find a used ML400 model. It boasts a muscular twin-turbocharged V6 engine, all-wheel drive, and most of the features available in the M-Class (including leather seats, a rearview camera, blind spot monitoring, lane departure warning, a Harman Kardon sound system, navigation, and voice recognition).

You may also want to consider a certified pre-owned M-Class. 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 »

Read more about the Mercedes-Benz certified pre-owned program »

2015 Mercedes-Benz M-Class and Other SUVs to Consider

Which Is Better: 2015 Mercedes-Benz M-Class or 2015 BMW X5?

The 2015 BMW X5 is one of the best choices in the class if you value performance. It has a lineup of four powerful engines and delivers athletic, sporty handling without sacrificing ride comfort. The X5’s interior quality meets BMW's lofty standards, and you may even find a model with a third row for extra seating space. The X5 has average predicted reliability, and both SUVs have commendable safety scores.

Which Is Better: 2015 Mercedes-Benz M-Class or 2015 Mercedes-Benz GL-Class?

The 2015 Mercedes-Benz GL-Class is a 3-row luxury large SUV that will give you more room, but cost you more as well. The GL-Class has comparable quality and features, but its average predicted reliability rating makes this bigger SUV less of a value than the M-Class. You will get slightly better performance with the GL-Class, owing to its more powerful range of engines. The GL also delivers balanced handling for a slightly better day-to-day drive.

Compare the M-Class, X5, and GL-Class »

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