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2009 Mercedes-Benz M-Class Overview, Reviews, Ratings & Specs

Rating: 4.76
Based on 37 Owner Reviews â–¶
Cathleen V | March 31, 2025
The 2009 Mercedes-Benz M-Class is a mid-size luxury SUV, part of the second generation (W164) which ran from 2005 to 2011. It offers a blend of comfort, capability, and Mercedes-Benz prestige. Key trims include the ML350, ML550, and the high-performance ML63 AMG. Original pricing ranged from approximately $45,000 to $90,000+ depending on trim and options. It stood out for its luxurious interior, robust build quality, and available V8 power, making it a popular choice for families seeking a premium SUV experience.
The Good

The 2009 M-Class offers a comfortable and luxurious ride, appealing to emotional buyers seeking prestige. Its powerful engine options deliver satisfying performance. For practical buyers, it provides decent cargo space and available all-wheel drive for added security. While reliability can be a concern, a well-maintained model offers a solid ownership experience. The design is classic Mercedes-Benz SUV.

The Bad

The 2009 M-Class is known for potential issues with the air suspension system (if equipped), which can be expensive to repair. Oil leaks, particularly from the engine and transmission, are also common concerns. Electrical gremlins and issues with the transfer case in AWD models can occur. Regular maintenance is crucial to mitigate these risks.

2009 Mercedes-Benz M-Class: Quick Overview

  • Engine Options:
    • ML350: 3.5L V6
    • ML550: 5.5L V8
    • ML63 AMG: 6.2L V8
    • ML320 CDI (Diesel): 3.0L V6
  • Horsepower:
    • ML350: 268 hp
    • ML550: 382 hp
    • ML63 AMG: 503 hp
    • ML320 CDI: 215 hp
  • Fuel Economy (MPG): (Estimates, may vary)
    • ML350: 15 city / 20 highway
    • ML550: 13 city / 18 highway
    • ML63 AMG: 11 city / 15 highway
    • ML320 CDI: 18 city / 25 highway
  • 0-60 Times: (Estimates, may vary)
    • ML350: 8.4 seconds
    • ML550: 5.6 seconds
    • ML63 AMG: 4.8 seconds
    • ML320 CDI: 8.5 seconds
  • Towing Capacity: Up to 7,200 lbs (Properly equipped)
  • Trim-Level Features:
    • ML350: Standard features include power seats, dual-zone climate control, premium audio system, sunroof, and safety features like ABS and stability control.
    • ML550: Adds features like leather upholstery, upgraded audio, and more premium interior trim.
    • ML63 AMG: High-performance variant with AMG-tuned engine, suspension, brakes, and unique styling elements, sport seats.
    • ML320 CDI: Similar features to the ML350, but with a diesel engine offering improved fuel economy.

2009 Mercedes-Benz M-Class Specifications

Vehicle Information
Year 2009
Make Mercedes-Benz
Model M-Class
Trim -
Style 4-Door 3.0-Liter
Type Sport Utility Vehicle
Category Standard Sport Utility Vehicle
Manufacturing Details
Made In United States
Manufacturing City VANCE
Dimensions
Doors 4-Door
Curb Weight 2134.15 kg
Gross Vehicle Weight Rating 2830.41 kg
Overall Height 181.61 cm
Overall Length 478.79 cm
Overall Width 191.01 cm
Wheelbase Length 291.34 cm
Standard Seating 5
Engine & Performance
Engine 3.5-L V-6 DOHC 24V
Engine Size 3.5L
Engine Cylinders 6
Transmission Automatic
Transmission Type Automatic
Transmission Speeds 7-Speed
Drivetrain All-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel ABS
Steering Type Rack & Pinion
Pricing
Manufacturer Suggested Retail Price (MSRP) $47,100 USD
Invoice Price $43,803 USD
Delivery Charges $875 USD

Vehicle History Report

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Analysis

What Problems Does the 2009 Mercedes-Benz M-Class Have?

The 2009 Mercedes-Benz M-Class, while a luxury SUV, has some frequently reported problems and reliability concerns. One significant issue is the air suspension system, especially in models equipped with Airmatic. This system can experience leaks, compressor failures, and sensor malfunctions, leading to expensive repairs. Oil leaks are also a common issue, originating from various engine seals and gaskets, as well as the transmission. Electrical issues, such as malfunctioning sensors, faulty wiring, and problems with the entertainment system, are also frequently reported.
Specific to the 2009 model year, some owners have reported issues with the transfer case in 4MATIC (AWD) models, leading to noise and vibration. The fuel level sending unit can also fail, causing inaccurate fuel gauge readings.
Recalls for the 2009 M-Class have addressed issues such as potential fuel filter leaks and problems with the brake booster vacuum line, which could affect braking performance. Long-term reliability concerns revolve around the aging electrical components and the potential for corrosion in areas with harsh winters. Regular maintenance and addressing problems promptly are crucial to mitigating these issues and ensuring a longer lifespan for the vehicle.
Prospective buyers should carefully inspect the vehicle's service history and consider a pre-purchase inspection by a qualified mechanic familiar with Mercedes-Benz vehicles.

How long will the 2009 Mercedes-Benz M-Class last?

With proper maintenance, a 2009 Mercedes-Benz M-Class can reasonably reach 200,000 miles or more, providing 15+ years of service. However, achieving this longevity hinges heavily on consistent maintenance habits. Neglecting scheduled services will significantly shorten its lifespan. Weaknesses over time include the aforementioned air suspension, oil leaks, and electrical issues. Rust can also become a problem, especially in regions with road salt. Well-maintained examples with documented service records are more likely to provide reliable service and reach higher mileage figures. Expect higher repair costs as the vehicle ages.

What Technology & Safety Features are Included?

The 2009 Mercedes-Benz M-Class features a decent array of built-in tech and safety features for its time. Standard features include a COMAND infotainment system with a central display, AM/FM radio, CD player, and auxiliary input. Optional entertainment features included a Harman Kardon Logic7 surround-sound system and a rear-seat entertainment system with DVD player.
Driver-assistance features were relatively limited compared to modern vehicles, but included standard cruise control and optional Parktronic parking sensors. Safety features were more comprehensive, with standard anti-lock brakes (ABS), electronic stability control (ESP), traction control, and a suite of airbags, including front, side, and curtain airbags.
Optional safety features included blind-spot monitoring. Crash-test ratings from the Insurance Institute for Highway Safety (IIHS) are generally good, with the M-Class earning "Good" ratings in most categories. The National Highway Traffic Safety Administration (NHTSA) also awarded the M-Class favorable safety ratings. The 2009 M-Class offered a solid level of safety for its era, but lacks the advanced driver-assistance systems (ADAS) found in newer vehicles, such as lane departure warning, automatic emergency braking, and adaptive cruise control.

What Colors Options are Available?

Exterior Colors
Black
Arctic White
Iridium Silver Metallic
Obsidian Black Metallic
Steel Grey Metallic
Alpine Rain Metallic
Midnight Blue Metallic
Palladium Silver Metallic
Carneol Red Metallic
Interior Colors
Black Leather
Gray Leather
Alpaca Grey/Dark Grey Leather
Black MB-Tex
Gray MB-Tex
Alpaca Grey/Dark Grey MB-Tex

2009 Mercedes-Benz M-Class Prices and Market Value

When new, the 2009 Mercedes-Benz M-Class had an MSRP ranging from approximately $45,000 for the base ML350 to over $90,000 for a fully loaded ML63 AMG. As of today, used market prices typically range from $5,000 to $15,000, depending on condition, mileage, and trim level. The M-Class has depreciated significantly over time, as is typical for luxury vehicles. Factors affecting resale value include mileage, condition, maintenance history, and trim level. Models with lower mileage, excellent condition, and comprehensive service records command higher prices. The ML63 AMG tends to hold its value better than other trims due to its performance credentials.

2009 Mercedes-Benz M-Class Cost of Ownership

The 2009 Mercedes-Benz M-Class is generally considered costly to own long-term. Insurance premiums are higher than average due to its luxury status and potential repair costs. Fuel economy is poor, especially with the V8 engines. Maintenance and repair costs can be substantial, particularly for the air suspension and electrical systems. Parts are typically more expensive than those for non-luxury vehicles. Overall, prospective owners should budget for higher-than-average operating costs, making it not an economical choice.

2009 Mercedes-Benz M-Class Fuel Efficiency

Fuel Type Gasoline (Required)
Fuel Capacity 95.01 liters
City Mileage 6.38 km/l
Highway Mileage 8.5 km/l

2009 Mercedes-Benz M-Class Safety Rating

NHTSA
Side Driver Rating
Frontal Passenger Rating
Rollover Rating
Side Rear Passenger Rating
Frontal Driver Rating
IIHS
Roof Strength Test Results Not Tested
Rear Crash Protection/Head Restraint Ratings Not Tested
Moderate Overlap Front Test Results Good
Side Impact Test Results Good

2009 Mercedes-Benz M-Class Warranty

Basic
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Powertrain
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Rust
Original warranty 48 months / 50,000 miles
Estimated remaining Expired

2009 Mercedes-Benz M-Class Insurance

Insurance for a 2009 Mercedes-Benz M-Class is moderately priced, reflecting its status as a Sport Utility Vehicle with strong safety ratings and
reasonable repair costs.

How Does the 2009 Mercedes-Benz M-Class Compare to Other Sport Utility Vehicle?

The 2009 Mercedes-Benz M-Class competes with other mid-size luxury SUVs like the BMW X5, Audi Q7, Lexus RX, and Acura MDX. In terms of performance, the M-Class offers strong engine options, particularly the V8s, but the BMW X5 generally provides a sportier driving experience. Feature-wise, the M-Class is competitive, but rivals like the Audi Q7 offer more advanced technology. Reliability is where the M-Class often falls short compared to the Lexus RX and Acura MDX, which are known for their dependability. The Lexus RX, while not as sporty or luxurious, provides a significantly more reliable and economical ownership experience.
In terms of price, the used M-Class can be attractive, but the potential for costly repairs makes it a risk. The Acura MDX offers a similar level of practicality and features with better reliability and lower ownership costs, making it a potentially better alternative. The BMW X5 provides a sportier driving experience, but also shares similar reliability concerns. If reliability is a top priority, the Lexus RX or Acura MDX are generally better choices. If you're looking for a similar blend of luxury and performance but are willing to accept potential maintenance costs, the M-Class could be considered, especially if you find a well-maintained example at a good price. However, buyers should thoroughly research its history and consider a pre-purchase inspection.

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648 2009 Mercedes-Benz M-Class (5.0★)

Final Verdict: Is the 2009 Mercedes-Benz M-Class a Good Sport Utility Vehicle?

The 2009 Mercedes-Benz M-Class is ideal for buyers who appreciate luxury and are willing to accept potentially higher maintenance costs. It's worth buying used if you find a well-maintained example with a comprehensive service history and a clean bill of health from a pre-purchase inspection. Specific trims like the ML350 offer a good balance of features and performance, while the ML63 AMG appeals to those seeking high-performance thrills, but comes with increased running costs. However, if reliability and low ownership costs are primary concerns, alternatives like the Lexus RX or Acura MDX are better choices. Approach with caution and a realistic budget for potential repairs.

2009 Mercedes-Benz M-Class Owner Reviews

4.76
Consumer Rating, Based on 37 Consumer Reviews
Overall rating
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ZeroGee on July 5, 2023

Solid as a rock - but a lot more comfortable

I've owned this truck/SUV for over 5 years now and spent 2 years trying to find one. I will replace it with a newer version shortly so I can add a factory towing hitch package. The diesel engine is tremendously strong (torque) and a lot more fuel efficient that the comparable gasoline engine. I've personally put almost 74,000 miles on it with negligible problems.

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Airstreamingypsy on June 7, 2020

Favorite Car ever

This diesel SUV is my favorite car ever..... it's a shame they have all that pollution stuff on it, that's the cause of problems I've had... that said I love driving it and hope it's my forever car.

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Vinnie on February 20, 2020

Great family car

I own this car for 10 years and I'm very happy with it, never been to the mechanic for issues.Now I have 140k miles and the car runs like new

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Vinnie on September 15, 2018

BMW x5 2012

This is a strong car and very safe for my family and my little sun.it has all the features that you need in car .

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Dylan on August 16, 2018

Good price for good car

I like the car what it is look like. I really like Mercedes a lot and this is a good price for used car. The exterior are nice too.

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MAA on July 2, 2018

Great performance, reliability, looks

Loved owning this car. Great in ice and snow, lots of room, looks beautiful. Great technology, comfortable seats, and some decent off-roading capability. Love the wood inserts and black leather. With tinted windows and the stock 20" rims is eye catching, even when 5+ years old. Would buy another one of these in a minute!

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Fred's ML on June 22, 2018

Pleasantly surprised!!

I've been buying older Mercedes BMWs for the last 15 years ..never thought of owning an M series..really a great car for trips..lots of cargo space along w/ 25gal tank=Road Trip Ready

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wschatz on June 8, 2018

Just purchased it I?m very happy with that!

So far I love the vehicle and enjoying it thank you for your help with the purchase! Our sales rep. Tom Gomez was very helpful!

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Janjan on May 28, 2018

Perfect

The best ever and most reliable car I purchased do far. Very spacious and ride quality is top notch. I would recommend it to everyone who wants a nice car.

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fredy53053 on April 5, 2018

exellent car for the money

i have owned a Benz always is one of the best car in the road to my opinion and is prestigious to i love it

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Cathleen V

Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.