2015 Mercedes-Benz M-Class Review

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Edmunds' Expert Review

  • Very fuel-efficient diesel
  • very quick gasoline engines
  • serene ride
  • rich interior appointments
  • roomy backseat
  • top crash scores.
  • Lazy handling
  • base V6 can feel underpowered
  • expensive compared to most rivals.

The 2015 Mercedes-Benz M-Class may not be a standout among its rivals in any single category, but its supremely comfortable cabin and wide variety of engines and packages gives it broad appeal.

Notably, we picked the Mercedes-Benz M-Class as one of Edmunds' Best Used SUVs and Best Used Luxury SUVs for 2015.

Vehicle overview

In the premium midsize crossover sport-utility segment there are a couple of athletic entries that feel as if they could give a sport sedan a run for the money on a deserted, curvy road. The 2015 Mercedes-Benz M-Class is not among them. But for the greater majority of people shopping for a practicality-minded luxury crossover, that will be a non-issue. It's the M-Class' roomy, inviting cabin and feeling of impenetrable build quality that hold much greater sway.

Mercedes certainly gives you a wide range of engine options to choose from. Whether you're seeking high fuel economy or high performance, this Mercedes-Benz crossover trumps its American- and Japanese-brand rivals when it comes to providing a choice of power to the people. Although the popular, gasoline V6-powered ML350 carries over, the M-Class is refreshed with a new pair of models that each comes with an equally new engine. The ML250 Bluetec and its more efficient turbocharged four-cylinder diesel replaces the old six-cylinder ML350 Bluetec diesel, while the old V8-powered ML550 gives way to the turbocharged six-cylinder ML400. Sure, these lower model numbers may be concerning to those who value the apparent prestige that comes with topping the neighbors with higher digits, but both should represent significant fuel economy gains versus their predecessors without any real noticeable drop in performance. And if a big number is ultimately what you're seeking, the wild ML 63 AMG is still available, offering as much as 550 horsepower.

Close the hood and take a seat inside any ML and it will be quickly apparent that the cabin quality, as expected of a Mercedes-Benz, is second to none. The massive selection of options allows one to tailor the ML to his or her tastes -- indeed there are no fewer than four kinds of wood trim available. The downside is that it is all too easy to pump up the already hefty price by another five figures if you're not careful while checking boxes.

Shoppers in this segment aren't exactly left wanting for good choices. The M-Class' most direct rivals are likely the BMW X5 and Range Rover Sport, which boast sharper handling and provide comparable luxury, power and features along with the option of a third-row seat, something lacking in the ML. Those third-row seats are suitable for small children only, however . If sporty performance is a top priority, the Porsche Cayenne is a breed apart, while the Acura MDX and Lexus RX 350 are also quite appealing, especially for families. But for those who prefer to cruise in dignified comfort, the 2015 Mercedes-Benz M-Class is bound to satisfy.

2015 Mercedes-Benz M-Class models

The five-passenger 2015 Mercedes-Benz M-Class is available in four trim levels defined by the engine fitted: ML250 Bluetec, ML350, ML400 and ML 63 AMG. All trim levels come with all-wheel drive (4Matic in Benz lingo) except for the ML350, which can also be had with rear-wheel drive.

The ML250 (replaces last year's ML350 Bluetec) comes standard with 18-inch wheels, adaptive suspension dampers, LED running lights and taillights, automatic wipers, a sunroof, roof rails and a power liftgate. Inside, you'll find dual-zone automatic climate control, cruise control, wood interior trim, a manual tilt-and-telescoping leather-wrapped steering wheel, eight-way power front seats (with four-way power lumbar adjustment), heated front seats, reclining 60/40-split folding rear seats, MB-Tex premium vinyl upholstery (leather is optional), the COMAND electronics interface (with 7-inch color display), Mercedes' mbrace2 communications system (includes smartphone app integration), Bluetooth phone and audio connectivity and an eight-speaker sound system with HD radio, a USB port and an auxiliary audio jack. There are also numerous standard safety features listed below under Safety.

The ML350 is similarly equipped but comes with 19-inch wheels standard.

Adding the Premium 1 package to either the ML250 or ML350 brings a rearview camera, power-folding exterior mirrors, auto-dimming rearview and driver-side mirrors, a 10-way power driver seat (with four-way power lumbar), a power tilt-and-telescoping steering wheel, driver memory functions, double sun visors, a navigation system, voice command functionality, a rear 115-volt household-style power outlet, satellite radio and an iPod interface.

The Sport package for the ML250/350 adds AMG exterior trim and either 19- or 20-inch AMG wheels.

The ML400 starts with the ML350 models' standard equipment and the contents of the Premium 1 package and adds a turbocharged engine, keyless ignition and entry, a 13-speaker Harman Kardon sound system, leather seating, heated and cooled cupholders, multicolor interior ambient lighting and the Lane Tracking package (blind spot and lane-departure warning systems).

There are many other available option packages. The Lighting package includes adaptive bi-xenon headlights with automatic high-beam control. The Driver Assistance package adds adaptive cruise control and an advanced version of the Lane Tracking package (see "Safety," below). The Parking Assist package adds front and rear parking sensors, an automated parallel parking system and a surround-view parking camera. The On/Off-Road package (ML350/400) includes an adaptive suspension with air springs ("Airmatic"), a two-speed transfer case, a six-mode terrain selector and underbody skid plates. Airmatic is also available as a stand-alone option.

The Convenience package features the heated and cooled cupholders, second row sunshades and a center armrest pass-through. The Interior Sport package includes front sport seats, special seat trim (simulated suede on the ML250/350, Napa leather on ML400) and a sport steering wheel. Audiophiles may want to consider the pricey but stunning 14-speaker Bang & Olufsen BeoSound audio system.

The ML 63 AMG goes all-out with a turbocharged V8, an AMG-tuned Airmatic suspension with adaptive stabilizer bars, exclusive 20-inch AMG wheels, special leather upholstery, sport seats with ventilation, and unique styling elements inside and out. The Premium 1, Lighting, Lane Tracking and Parking Assist packages are standard as well, while the Driver Assistance package is optional. The AMG Performance package raises engine output and adds a higher top speed, along with red-painted brake calipers and a carbon-fiber engine cover. Also optional are 21-inch AMG wheels along with most of the other trims' extra equipment.

Individual option highlights include the "Active Curve" handling enhancement system, a trailer hitch, a panoramic sunroof, running boards, keyless ignition and entry, three-zone climate control, "multicontour" front seats with adjustable bolsters and massage functions, ventilated front seats, heated rear seats, the heated steering wheel, a dual-screen rear-seat entertainment system, enhanced iPhone connectivity controls (Drive Kit Plus), and a Splitview display for the COMAND system that can project different images to the driver and passenger.

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2015 Highlights

For 2015, the Mercedes-Benz M-Class lineup sees greater fuel efficiency with a pair of new engines -- a smaller diesel and a turbocharged V6 -- and the fitment of fuel-saving automatic engine stop-start technology for all engines.

Performance & mpg

All 2015 Mercedes-Benz M-Class models come standard with a seven-speed automatic. 4Matic all-wheel drive is standard on all but the ML350, where it's an option that replaces rear-wheel drive.

The ML350 features a 3.5-liter V6 engine rated at 302 hp and 273 pound-feet of torque. In Edmunds performance testing, an ML350 with AWD accelerated from zero to 60 mph in 6.8 seconds, which is average for this segment. EPA-estimated fuel economy is 20 mpg combined (18 city/24 highway) with rear-drive and 19 mpg combined (17 city/22 highway) with AWD.

The ML250 Bluetec comes with a 2.1-liter turbocharged four-cylinder diesel that produces 200 hp and a healthy 369 lb-ft of torque. Fuel economy is excellent at 25 mpg combined (22 city/29 highway). Mercedes claims an 8.9-second 0-60-mph time, which would place it near the bottom of the class in terms of acceleration.

The ML400 boasts a 3.0-liter turbocharged V6 that produces 329 hp and 354 lb-ft of torque. EPA-estimated fuel economy is 20 mpg combined (18 city/22 highway). That means it essentially matches the ML350 for efficiency, but it sprinted to 60 mph in a quicker 6.1 seconds in our testing.

The ML 63 AMG rocks a 5.5-liter turbo V8 that produces 518 hp and 516 lb-ft of torque. The AMG Performance package boosts that output to 550 hp and 560 lb-ft. Mercedes says the ML 63 will hit 60 mph in a startling 4.7 seconds in standard form, while the Performance package knocks off a tenth of a second. Fuel economy stands at 15 mpg combined (13 city/17 highway).

Properly equipped, the ML250/350 can tow up to 6,600 pounds; the ML400 and ML 63 AMG can tow up to 7,200 pounds.


Standard safety features for all 2015 Mercedes-Benz M-Class models include antilock brakes, traction and stability control, PreSafe (which can identify an imminent crash and automatically take measures to secure occupants), hill-start assist and hill-descent control, active front head restraints, a driver inattention warning system, a collision warning system, front and rear side airbags, side curtain airbags and a driver knee airbag. The mbrace2 communications system includes automatic collision notification, an SOS button, stolen vehicle location, geo-fencing, alarm notification and remote door lock/unlock. A rearview camera is standard on the ML 63 and optional on all other versions.

The M-Class additionally offers two levels of blind-spot and lane-departure protection. The first level comes via the Lane Tracking package, which monitors road conditions and alerts the driver by vibrating the wheel or emitting a beep. The second level is found in the Driver Assistance package, which adds "active" versions of these systems that can selectively apply the brakes if the driver fails to heed the car's warnings.

In government crash testing, the M-Class received a perfect five stars for overall, front and side crash protection. The M-Class also came up aces in crash tests performed by the Insurance Institute for Highway Safety, receiving the top mark of "Good" in the moderate-overlap frontal offset, small-overlap frontal offset, side-impact and roof strength tests. Its seat/head restraint designs also rate "Good" for whiplash protection in rear impacts, plus the M-Class garnered a "Superior" grade for front crash prevention when equipped with the optional Driver Assistance package.

In Edmunds brake testing, a 2015 ML400 on all-season tires stopped in a slightly below-average 125 feet.


The 2015 M-Class' standard gasoline V6 engine gets fairly frisky if you're willing to take it to redline, but acceleration can feel a little pokey in normal driving conditions. That's why the ML250 Bluetec diesel version is a win-win proposition: It delivers ample usable thrust in everyday passing and merging maneuvers along with superior fuel economy. As for the other, more powerful models, the ML400 is downright quick, while the ML 63 is just nuts. If ripping acceleration is a must, AMG has an SUV for you.

From the driver seat, the ride quality is exemplary, especially when equipped with the Airmatic system, isolating occupants from both road impacts and noise. It's a reason in itself to buy this Benz. On winding roads, however, the non-AMG M-Class models (without the optional Active Curve System) feel soft and out of sorts around turns. The steering is both devoid of feel and overly light in effort. Translation: This is not a sporty SUV. The ML 63 AMG, meanwhile, delivers considerably more capable but ultimately uninspiring handling.


The 2015 Mercedes-Benz M-Class features understated interior styling that complements the restrained exterior. The dashboard is almost identical to that of the larger GL-Class, underscoring the fact that the M and GL are essentially differently sized portions of the same dish.

If you're OK with only two rows of seating, save some money and get the M-Class; if you need three rows, bring enough cash for the GL-Class. However, rival midsize luxury crossovers like the Acura MDX or BMW X5 offer the option of seven-passenger seating in a package that's similar in size to the M-Class.

To its credit, though, the M offers roomy accommodations for five and provides more second-row legroom than most competitors do. Cargo capacity measures 38.2 cubic feet behind the rear seats and 80 cubes with the rear seatbacks folded flat: solid figures for this class.

Materials quality inside the M-Class is superb, ranking right up there with any luxury SUV on the market. The standard knob-based COMAND interface works better than most systems of its ilk, providing a welcome amount of user-friendly redundancy among the control knob, dash buttons and wheel controls.

Consumer reviews

Read what other owners think about the Used 2015 Mercedes-Benz M-Class.

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Most helpful consumer reviews

5 out of 5 stars
Great Value for the price of a loaded Durango
Jeff M,09/19/2016
ML 250 BlueTEC 4MATIC 4dr SUV AWD (2.1L 4cyl Turbodiesel 7A)
Not a sports sedan, so I didn't rate it as such. It is an SUV, a road-going one at that, handles well and excellent braking with very good acceleration around town. Highway passing power is as expected with a diesel (lazy), towing the rated 7,200lbs seems like it'd be a stretch in mountains but I haven't tried. Mine is mostly a business/family car, averages 33mpg highway (calculated, since new) and I can get close to 30 around town driven gently. Well-controlled firm but not too firm ride and handling, nice interior and exterior details where good engineering is apparent. Stout suspension and undercarriage. Good interior space for four large adults for business, decent luggage space for travel. Controls are logical and easy to understand. Update: 46,000 miles, no problems except: one piece of wood trim had the finish crack (replaced under warranty), had the engine ECU re-flashed to cure a stumbling problem when very cold out (<15F), buzz in one speaker when using phone. A little disappointed in the tires lasting only around 50k miles (due for replacement now), but otherwise very dependable and reliable. The DEF (for the exhaust treatment) never needs to be touched, I have it filled every 10k miles at oil change time and that's it. People with other brand diesels seem to need to fill their DEF tanks more often. It does tow well. I was a bit concerned that it wouldn't have the power, but pulls my 7,000# boat/trailer out of the water fine, tows on highway well also, I am impressed with how stable it is considering it's not a huge vehicle nor wheelbase. With the Bluetec / diesel not available anymore in the US, I might have this one for a long time. Update 67,000 miles: The car has been semi-retired to personal travel and occasional errands. I installed new Michelin tires, no significant change to ride nor other metrics. I leased a new Explorer (also on Michelin tires) for business travel, which has given me an interesting perspective on the Mercedes however: Even with the 4-cyl Ecoboost (turbo) and the same type of driving, the Explorer only delivers around 21mpg to the Bluetec's 33. The gas engine does have more "pep" however and less lag, so overall better highway acceleration. That's where the new Explorer (8 months & 17,000 miles) ends its advantages. Coing back to my older and higher-mile Mercedes at the end of the week the differences are much more obvious to me. The Explorer's controls are kludgy and cheap feeling, the layout much less well thought-out, touch-screen is nice but Ford's navigation is dismal in comparison to Mercedes', the ride is loud, engine noise louder in the cabin than is the bluetec, and general ride is rough. The Mercedes has a far superior AWD system and is much more stable in gusty winds. That on top of the Explorer's blind-spots that take a second or third glance over my shoulders to change lanes, and there is really nothing nice I can say about the Explorer, ... makes me very happy that I spent the extra for the Mercedes. Hopped in the ML last weekend for a 400mile round-trip to visit relatives and smiled every mile, just so much nicer to drive, everything about the experience is better an it drives tighter with 4X the miles on it, I think it's going to see the 300K mark that my last Mercedes did without a rattle. Waiting for my 2-year Exporer lease to run out, ... but certainly keeping the Mercedes long-term. I would like a little more highway passing power, and to see diesel prices drop, but with 800+ mile range (to the explorer's 350) I'm happy to pay a price between regular and premium gasoline for my diesel.
5 out of 5 stars
4 cylinder diesel- great SUV
Game Changer,03/01/2018
ML 250 BlueTEC 4MATIC 4dr SUV AWD (2.1L 4cyl Turbodiesel 7A)
I bought my 2015 ML250 on 02-17-18 as a CPO from FL. I had a 2014 Audi Q5 that was out of warranty, needed new tires, and was a tad small for my 6'3" frame. I've never owned a diesel but had been interested in a Q5 TDI prior to the VW scandal and emissions cheating. Anyways, I located this vehicle and drove down on a Friday to trade my Q5 and take delivery of ML250. The engine note and diesel sound took a bit getting used to and initially I felt like the acceleration was a tad slow. I averaged 30.9 mpg on the way back to Atlanta doing 80 mph which I thought was phenomenal. I've now driven the vehicle for two weeks and am averaging 29.0 mpg which is great considering the traffic encountered here. Vehicle has much more interior room than the Q5 and is top notch in terms of materials quality. I have the park assist, lane assist, chrome package, and Premium 1 package. My only complain is the navigation which is minor since I primarily use Waze. Maybe I need to play around with it but the voice guidance is non-stop while driving, interfering with the music. Overall, the vehicle is top notch and I will see how reliable it is over time. I did pay for the 2 year/unlimited CPO extended warranty for peace of mind. I would recommend this SUV without reservation if you're looking for a luxury SUV with great fuel mileage and aren't looking for sports car performance. With 369 lb/ft torque, it will get up and go but is more of a cruiser than a bruiser.
5 out of 5 stars
Surprising Diesel Performance
Chad Tennant,09/15/2017
ML 250 BlueTEC 4MATIC 4dr SUV AWD (2.1L 4cyl Turbodiesel 7A)
Bought vehicle off lease with 20,000 miles. Wanted to have 2 more years of warranty and the four year warranty works. What I find most pleasant is the quick response of the 4 cylinder diesel and the motor silence at 80 mph. How MB got such superb performance in a small diesel is astounding. The SUV is just perfect. Seats comfy, fit and finish excellent, materials high end, ride soft but firm on highway, turns effortlessly. I bought this SUV to tow a boat and for longer trips. The 4WD system makes taking boat out at the boat ramp easy and I get 20 mpg while towing a 3,000 pound boat at 68 mph. The 25 gallon fuel tank allows an 800 mile range at 70mph. I get 33 mpg at 70 mph and 31.3 mpg at 82 mph. MB has done a complete job with the ML250. Performance, 6,800 pound tow capacity, great fuel economy in a full size SUV. I bought the three year extended warranty a year ago. Have had no issues. Will keep this real suv for many more years. Have owned ML 250 for 4.5 years. Enjoy the vehicle and plan to keep it 3-4 more years.
5 out of 5 stars
Best all-around vehicle I've ever owned
George Gilmore,09/21/2016
ML 250 BlueTEC 4MATIC 4dr SUV AWD (2.1L 4cyl Turbodiesel 7A)
This vehicle has hauled a packed 12 foot dual axle U-Haul twice from Michigan to western NY with ease while achieving better than 18 miles per gallon while averaging over 60 MPH for the trip. It's maneuverable, the back seats fold perfectly flat with the cargo area for loading all sorts stuff. It's quiet, it has a great sound system no matter where you're sitting (Harmon Kardon), great seats, great ride, great visibility. Best mileage on a trip was 34.5 MPG averaging 52 MPH. Around town I get 27 MPG. I didn't buy this for it's sporty handling. We wanted exactly what we got; a safe, practical all-purpose road cruiser


NHTSA Overall Rating

5 out of 5 stars
The National Highway Transportation Safety Administration offers independent analysis.
  • Frontal Barrier Crash Rating
    Overall5 / 5
    Driver5 / 5
    Passenger5 / 5
  • Side Crash Rating
    Overall5 / 5
  • Side Barrier Rating
    Overall5 / 5
    Driver5 / 5
    Passenger5 / 5
  • Combined Side Barrier & Pole Ratings
    Front Seat5 / 5
    Back Seat5 / 5
  • Rollover
    Rollover4 / 5
    Dynamic Test ResultNo Tip
    Risk Of Rollover19.8%
IIHS Rating
The Insurance Institute of Highway Safety uses extensive crash tests to determine car safety.
  • Side Impact Test
  • Roof Strength Test
  • Rear Crash Protection / Head Restraint
  • IIHS Small Overlap Front Test
    Not Tested
  • Moderate Overlap Front Test

More about the 2015 Mercedes-Benz M-Class

Used 2015 Mercedes-Benz M-Class Overview

The Used 2015 Mercedes-Benz M-Class is offered in the following submodels: M-Class ML 63 AMG, M-Class SUV, M-Class Diesel. Available styles include ML 350 4MATIC 4dr SUV AWD (3.5L 6cyl 7A), ML 350 4dr SUV (3.5L 6cyl 7A), ML 400 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo 7A), ML 250 BlueTEC 4MATIC 4dr SUV AWD (2.1L 4cyl Turbodiesel 7A), and ML 63 AMG 4dr SUV AWD (5.5L 8cyl Turbo 7A). Pre-owned Mercedes-Benz M-Class models are available with a 3.5 L-liter gas engine or a 3.0 L-liter gas engine, with output up to 329 hp, depending on engine type. The Used 2015 Mercedes-Benz M-Class comes with all wheel drive, and rear wheel drive. Available transmissions include: 7-speed shiftable automatic. The Used 2015 Mercedes-Benz M-Class comes with a 4 yr./ 50000 mi. basic warranty, a 4 yr./ 50000 mi. roadside warranty, and a 4 yr./ 50000 mi. powertrain warranty.

What's a good price on a Used 2015 Mercedes-Benz M-Class?

Price comparisons for Used 2015 Mercedes-Benz M-Class trim styles:

  • The Used 2015 Mercedes-Benz M-Class ML 350 4MATIC is priced between $21,684 and$27,995 with odometer readings between 49516 and112317 miles.
  • The Used 2015 Mercedes-Benz M-Class ML 63 AMG is priced between $55,998 and$55,998 with odometer readings between 25573 and25573 miles.

Shop with Edmunds for perks and special offers on used cars, trucks, and SUVs near Ashburn, VA. Doing so could save you hundreds or thousands of dollars. Edmunds also provides consumer-driven dealership sales and service reviews to help you make informed decisions about what cars to buy and where to buy them.

Which used 2015 Mercedes-Benz M-Classes are available in my area?

Shop Edmunds' car, SUV, and truck listings of over 6 million vehicles to find a cheap new, used, or certified pre-owned (CPO) 2015 Mercedes-Benz M-Class for sale near. There are currently 10 used and CPO 2015 M-Classes listed for sale in your area, with list prices as low as $21,684 and mileage as low as 25573 miles. Simply research the type of car you're interested in and then select a used car from our massive database to find cheap prew-owned vehicles for sale near you. Once you have identified a used vehicle you're interested in, check the AutoCheck vehicle history reports, read dealer reviews, and find out what other owners paid for the Used 2015 Mercedes-Benz M-Class.

Can't find a used 2015 Mercedes-Benz M-Classs you want in your area? Consider a broader search.

Find a used Mercedes-Benz M-Class for sale - 2 great deals out of 16 listings starting at $13,774.

Find a used Mercedes-Benz for sale - 10 great deals out of 18 listings starting at $23,210.

Find a used certified pre-owned Mercedes-Benz M-Class for sale - 2 great deals out of 16 listings starting at $13,301.

Find a used certified pre-owned Mercedes-Benz for sale - 9 great deals out of 20 listings starting at $17,073.

Should I lease or buy a 2015 Mercedes-Benz M-Class?

Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

Check out Mercedes-Benz lease specials
Check out Mercedes-Benz M-Class lease specials