Overview & Reviews
While Mercedes-Benz will always be a quintessentially German automaker, its M-Class SUV has always been an American at heart. To begin with, it's built in Alabama and has been since it first burst onto the scene as one of the first luxury SUVs. The U.S. of A is also the M's primary market, as its sizable dimensions and mostly thirsty engines play much better in Frankfort, Kentucky, than they do back in Frankfurt, Germany.
Regardless of its origins, however, each generation of the Mercedes-Benz M-Class has been better than the last. This is especially true of the second generation, which replaced the original model that soldiered on through eight years of subpar reliability and build quality. As such, used shoppers are urged to consider the M-Class from 2006 and later. If you're interested in a newer model, however, the latest, third-generation M-Class is a subtle evolution of the previous one, upping the ante with even more power and features.
Although it's undeniably a solid choice for a midsize luxury SUV, there are many worthwhile and less expensive competitors in the premium SUV segment. As such, it's certainly worth a look around before you settle on this Germanic American.
Current Mercedes-Benz M-Class
The Mercedes-Benz M-Class midsize luxury SUV's exterior styling strikes a balance between traditional M-Class cues and the latest ones from the Mercedes-Benz line. As always with a Mercedes, however, it's the quality of construction and all-around feeling of solidity that make it stand out. Other key strengths include its diverse engine lineup, comfortable seating and excellent brakes. With only five seats, however, it's less family-friendly than some rivals that offer third-row seating, and its price can be considered quite expensive.
The current M-Class is available in four different trim levels defined by their engine: ML250 Bluetec, ML350, ML400 and ML63 AMG. All come with a seven-speed automatic and all-wheel drive ("4Matic") except for the ML350, which can be had with either rear- or all-wheel drive.
Under the hood, the ML250 Bluetec has a turbocharged 2.1-liter four-cylinder diesel with 200 horsepower and a healthy 369 pound-feet of torque. The ML350 comes with a 3.5-liter V6 that produces 302 hp and 273 lb-ft. The ML400 features a turbocharged 3.0-liter V6 that produces 329 hp and 354 lb-ft.
A beast apart from the rest of the lineup is the powerhouse ML63 AMG that boasts a turbocharged 5.5-liter V8 with 518 hp and 516 lb-ft. Output is even greater -- at 550 hp and 560 lb-ft – if you opt for the AMG Performance package. The ML63 AMG also includes active roll stabilization, sportier suspension and steering tuning, 20-inch wheels, stronger brakes and special interior trim.
All M-Class models come similarly equipped with standard items like a sunroof, a power liftgate, heated power front seats, the latest COMAND electronics interface, Bluetooth and an emergency communications system. Optional highlights include a panoramic sunroof, keyless ignition and entry and "multicontour" front seats with massage functions. The On/Off Road package is notable for its adaptive air suspension (that improves both ride and handling qualities) as well as its two-speed transfer case, six-mode terrain selector and underbody skid plates.
In reviews, we've been impressed by the Mercedes-Benz M-Class' brisk performance and strong brakes. Handling is confident enough around corners, but the electrically assisted steering is a little too light in effort and lacks the subtle feedback we've come to expect from Mercedes-Benz. Interior quality is excellent, as expected, though the more rounded dash design reminds us more of the distantly related Jeep Grand Cherokee in its appearance than its squared-off Mercedes siblings. Overall, the M-Class is solid choice for a luxury SUV, but as there's so much to choose from in this segment, taking a look at a few different competitors as well is a good idea.
Used Mercedes-Benz M-Class Models
The current third-generation Mercedes-Benz M-Class debuted for 2012. The following year brought the optional On/Off Road package (replacing the Dynamic Handling package) as well as the massage functions for the front seats.
Note that these M-Class models differed from today's lineup in terms of a few engine offerings. Specifically, compared to the current ML250 Bluetec, the 2012-'14 ML350 Bluetec had a more powerful but less fuel-efficient turbodiesel V6 with 240 hp and 455 lb-ft. Also available those first three years was the ML550 with its 4.7-liter turbocharged V8 good for 402 hp and 443 lb-ft.
The previous, second-generation M-Class was produced from 2006-'11. Though similar in appearance to the current model, this M-Class differs in its engine choices, hydraulic versus electric steering, slightly lower-quality interior, and electronics controls that were less user-friendly than those of its contemporary competitors.
This generation was introduced with only two trims. The ML350 came with a 3.5-liter 268-hp V6, while the ML500 was powered by a 5.0-liter 302-hp V8. Both came similarly equipped.
The next year saw two additional models join the line. The ML320 CDI featured a relatively fuel-efficient diesel engine (215 hp, 398 lb-ft of torque) that didn't have California emissions approval, while the performance-oriented ML63 AMG came with a 6.2-liter V8 good for 503 hp. It also included a number of other performance and handling upgrades.
The ML550 replaced the ML500 for '08, boasting a 5.5-liter V8 good for a much healthier 382 hp. The following year saw the advent of the 50-state-compliant and renamed ML320 Bluetec, along with a base rear-wheel-drive ML350. Every ML also received a face-lift front and rear and an available updated COMAND system with Bluetooth phone connectivity.
For '10, the diesel model became the ML350 Bluetec and received a smidge more torque, but the bigger news was the addition of the ML450 Hybrid. Featuring a gasoline-electric hybrid system co-developed with BMW and General Motors, this ML featured a 3.5-liter V6, a pair of electric motors and an advanced transmission for a total of 335 hp. It achieved 22 mpg combined, which is good, but the cheaper Bluetec managed 21.
In reviews, our editors found the second-generation M-Class imparted that feeling of impenetrable solidity one expects from Mercedes-Benz. With the optional air suspension, the ride quality was impressively supple. Behind the wheel, one will find plenty of room and excellent support from the premium multicontour seats, as well as superb cabin materials. Major downsides included fussy electronic controls, pokey acceleration with the V6 engine, and higher ownership costs than some other luxury SUVs.
The first-generation Mercedes M-Class debuted in 1998 with the ML320, which was motivated by a 3.2-liter V6 with 215 hp. More standard equipment was added in 1999, as well as a more powerful and luxurious V8-equipped ML430 model. Detail improvements in 2000 included an interior freshening and optional third-row seating on all M-Class models, and in 2001 the TeleAid emergency calling system became standard across the lineup. These early ML models suffered from extensive quality-control issues that often resulted in expensive repair bills, so we wouldn't recommend them as used-car purchases.
The Mercedes-Benz M-Class was reworked and improved in 2002 with the modification of more than 1,100 parts and the substitution of the ML500 for the previous ML430, now featuring a 5.0-liter V8 packing 288 hp. Telltale signs included new bumpers, clear-lens headlights and restyled mirrors. In late 2003, the ML350 replaced the ML320, featuring a larger 3.5-liter 232-hp V6.
Mercedes was also first to market with a high-performance luxury SUV, offering the ML55 AMG from 2000-'03. Sold in limited numbers, this pricey ML had a 5.4-liter V8 good for 342 hp and 376 lb-ft of torque, along with a sport-tuned suspension.
User Reviews:
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Best SUV I have ever driven - 2006 Mercedes-Benz M-Class
By Ray Gerbi - May 28 - 2:10 pmI have had my ML350 for 4 months now, and have driven on a couple of extended trips during that time. As well as it drives, it looks even better. Folks really check it out when I drive by! The handling is superb, and it is a very quick, comfortable machine to drive. I thought the 20.5 mpg on the highway was a tad low, but, I do have a tendency to drive a bit faster than a good speed for economical driving. My wife loves to drive the suv, and she says she feels very safe and comfortable in it. I am 67 and I have had my share of luxury vehicles. I would recommend this vehicle to anyone looking for the safety and practicality of an SUV, and the comfort of a luxury car.
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Lease is up in May! - 1998 Mercedes-Benz M-Class
By PatR - May 22 - 2:00 amDuring the first two years this ML was in the shop 13(not a good #) times. The next two years were flawless except for routine service. I can purchase the ML for $24,000, but I am worried about long term reliability. Considering a Toyota Highlander or a Chevy Trailblazer to replace the ML. How has everyones ML been after the first two years?
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Constant Nightmare-BEWARE!! - 2000 Mercedes-Benz M-Class
By Holley - May 17 - 10:00 amIm appalled at the lack of quality of this vehicle.The shop owns my car.Its my part-time job to pick up and drop my car off at the service department when it isnt being towed.When I pick up my repaired car it always breaks down within a day or so.Ive been following up with MB-USA but dont bother.They send you right back to the dealership who coulnt care less about customer service-and Ive been to three so far!I would love to trade it in but it wont run long enough.Im trying to determine what steps to take to hold MBUSA responsible.Other car makers are completely aware so ML-320 owners are taking the hit on trade-in.BEWARE!!!
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Great Car - 2005 Mercedes-Benz M-Class
By CPad - May 17 - 9:33 amI bought my ML with 35K miles on it and its been the absolute best car Ive ever owned. I love the solid feel (others descriptions of a tank are accurate) and I feel completely safe in this vehicle. It handles beautifully in the wet, snowy weather in my area. I too have had trouble with the flaking on the back windows but thats about it cosmetically. The car handles like a dream and has enough horsepower to get me out of a tough place if I ever find myself in one. Cant seem to find a phone that works thru the speaker feature tho...
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Glad We Moved Up!! - 2010 Mercedes-Benz M-Class
By nymonymgr - May 14 - 3:50 amWe replaced a 2007 Honda Pilot whos lease was maturing. Couldnt pass up the deal. Lower payment than a new Pilot or Pathfinder do to MBs year end event and a much higher residual. Couldnt be happier so far. True German engineering and craftsmanship. Plenty of power and room for a family of four. Looks great in Capri Blue with a tan interior. It has the P1 package which includes NAV, power liftgate, etc, heated seats, running boards and the dual dvds for the kids. Perfect fit and finish with high end materials. NAV, bluetooth, etc. arent as intuitive as my Infinity but got used to it. This truck is a tank in the snow...handles much better than the Pilot did!
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Ed`s review - 2006 Mercedes-Benz M-Class
By ed - May 11 - 2:50 amHad an old Ml320 for 5 years and like it. This one is a far better car , drives better , looks better and has all this bells and whistles. It doesn`t drive like a SUV anymore. High quality vehicle.
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Safe and Secure. - 2003 Mercedes-Benz M-Class
By Joe Cross - May 9 - 4:56 pmThe feel of this SUV on the road is one of stability and security. This is my second M class, the first was the reason for the second. On my way home one evening a Lincoln Town Car pulled out in front of me and we collided nearly head on, I ended up on 2 wheels going the wrong way into on coming traffic. I was able to control the vehicle and turn it while on two wheels back onto my side of the road.
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ML has a heavy and sticky gas pedal. - 2004 Mercedes-Benz M-Class
By JBear - May 8 - 10:00 amOne very annoying problem that is mentioned by many ML owners is the heavy and sticky feel of the gas pedal. It makes it difficult and uncomfortable to drive smoothly. MB service just says "thats the way it is" theres no fix. That is unfortunate because there is a lot to like about the ML and this problem is something that you experience every single time you drive. MB engineers need to drive a BMW and experience the silky smooth progression of the BMW throttle.
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A FINE CAR - 1999 Mercedes-Benz M-Class
By ML320S - April 24 - 10:00 amWE USE THIS VEHICLE ONLY ON LONGER TRIPS. HAVE HAD TO TAKE IT BACK TO DEALER ONE TIME FOR A FAULTY REAR HATCH LOCK UNDER WARRENTY. HAVE DRIVEN PAST MAY VEHICLES IN THE DITCH ON ICY FREEWAYS.EXCELLENT WINTER CAR. EXCELLENT RIDE.
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ml 320 AFTER 2 YEARS - 2001 Mercedes-Benz M-Class
By gARY - April 24 - 10:00 amI still love this vehicle after 2 years, all wheel drive awesome and its pretty quick too.