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

Rating: 4.63
Based on 27 Owner Reviews â–¶
Jovan | March 31, 2025
The 2009 Mercedes-Benz CLK-Class is a luxury coupe and convertible, representing the second generation of this model line. Produced from 2003-2009 (for the coupe) and 2003-2010 (for the convertible), it offered a blend of style and performance. Key trims included the CLK350 and the more potent CLK550. Its elegant design, comfortable ride, and Mercedes-Benz prestige contributed to its popularity. The original pricing ranged from approximately $48,000 to $60,000+ depending on trim and options.
The Good

The 2009 CLK-Class offers a compelling blend of luxury and performance. Its elegant design and comfortable interior appeal to emotional buyers, while its respectable performance and Mercedes-Benz build quality (though not without flaws) satisfy practical considerations. The CLK350 balances efficiency and power, while the CLK550 delivers thrilling acceleration. It's a stylish and comfortable cruiser.

The Bad

Potential weaknesses of the 2009 CLK-Class include potential electrical issues, particularly with sensors and control modules. Some owners have reported problems with the convertible top mechanism (on convertibles). Regular maintenance is crucial to prevent costly repairs. Rust can be an issue in certain climates, so inspect carefully. Suspension components may also require attention over time.

2009 Mercedes-Benz CLK-Class: Quick Overview

  • Engine Options:
    • CLK350: 3.5L V6
    • CLK550: 5.5L V8

  • Horsepower:
    • CLK350: 268 hp
    • CLK550: 382 hp

  • Fuel Economy (EPA Estimated):
    • CLK350: 17-18 mpg city / 24-25 mpg highway (depending on model and driving conditions)
    • CLK550: 15 mpg city / 22 mpg highway

  • 0-60 Times:
    • CLK350: Approximately 6.1-6.3 seconds
    • CLK550: Approximately 4.9-5.2 seconds

  • Towing Capacity: The CLK-Class is not designed for towing. Towing capacity is minimal and not recommended.

  • Trim-Level Features:
    • CLK350: Standard features typically include: Leather upholstery, power seats, sunroof, dual-zone automatic climate control, premium audio system, alloy wheels, anti-lock brakes (ABS), stability control, and a suite of airbags.
    • CLK550: Builds upon the CLK350 features, adding: More powerful V8 engine, upgraded brakes, sport-tuned suspension, AMG styling cues, premium leather options, and potentially additional luxury features.
    • Optional Features: Both trims often had optional features such as: Navigation system, premium sound systems (e.g., Harman Kardon), heated seats, ventilated seats, park assist, keyless go, and various appearance packages.

2009 Mercedes-Benz CLK-Class Specifications

Vehicle Information
Year 2009
Make Mercedes-Benz
Model CLK-Class
Trim -
Style 2-Door Cabriolet 3.5-Liter
Type Convertible
Category Subcompact Car
Manufacturing Details
Made In Germany
Manufacturing City OSNABRUCK
Dimensions
Doors 2-Door
Curb Weight 1744.06 kg
Gross Vehicle Weight Rating -
Overall Height 141.22 cm
Overall Length 465.33 cm
Overall Width 173.99 cm
Wheelbase Length 271.53 cm
Standard Seating 4
Engine & Performance
Engine 3.5-L V-6
Engine Size 3.5L
Engine Cylinders 6
Transmission 7-Speed Automatic
Transmission Type Automatic
Transmission Speeds 7-Speed
Drivetrain Rear-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel ABS
Steering Type Rack & Pinion
Pricing
Manufacturer Suggested Retail Price (MSRP) $56,100 USD
Invoice Price $52,173 USD
Delivery Charges $875 USD

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

Frequently reported problems for the 2009 Mercedes-Benz CLK-Class often revolve around electrical issues. These can manifest as malfunctioning sensors (e.g., oxygen sensors, mass airflow sensors), problems with the COMAND system, and issues with the convertible top mechanism (on convertibles). Some owners have reported problems with the climate control system and its associated actuators. Oil leaks are also a fairly common issue, particularly as the car ages.

While specific recalls can vary, it's important to check the NHTSA (National Highway Traffic Safety Administration) website for any outstanding recalls related to the 2009 CLK-Class. Common recall areas for Mercedes-Benz vehicles of this era often involve fuel system components, airbags, and brake system components.

Long-term reliability concerns often center around the durability of the electronic components and the potential for corrosion, especially in areas with harsh winters. Suspension components, such as control arms and ball joints, may require replacement over time. The M272 and M273 engines (used in the CLK350 and CLK550, respectively) are generally reliable, but proper maintenance, including regular oil changes, is essential to prevent issues like timing chain wear (more prevalent on earlier versions of these engines). Regular transmission servicing is also crucial for long-term reliability.

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

With proper maintenance, a 2009 Mercedes-Benz CLK-Class can realistically provide 200,000 miles or more of service. Many well-maintained examples are still on the road with over 150,000 miles. However, achieving this longevity requires diligent maintenance habits, including regular oil changes, fluid flushes, and addressing minor issues promptly. Long-term durability weaknesses often stem from electrical component failures, suspension wear, and potential rust issues (depending on geographic location). Ignoring maintenance or delaying repairs will significantly shorten the lifespan and increase the likelihood of major problems.

What Technology & Safety Features are Included?

The 2009 Mercedes-Benz CLK-Class offered a respectable array of tech, entertainment, driver-assistance, and safety features for its time. Standard entertainment features included a premium audio system (often Bose), a CD player, and an AM/FM radio. The COMAND system, an optional feature, provided navigation, audio controls, and access to vehicle settings through a central display screen.

Driver-assistance features were relatively limited compared to modern vehicles, but the CLK-Class included standard features such as cruise control, anti-lock brakes (ABS), and electronic stability control (ESP). Optional features like park assist could aid in parking maneuvers.

Safety features were a priority, with standard equipment including a comprehensive airbag system (front, side, and curtain airbags), traction control, and brake assist. The CLK-Class also featured a strong safety cage construction.

Crash-test ratings from the IIHS (Insurance Institute for Highway Safety) and NHTSA should be consulted for specific data on the 2009 CLK-Class. While specific ratings may vary, Mercedes-Benz vehicles generally performed well in crash tests, reflecting the company's commitment to safety. Keep in mind that crash test standards have evolved since 2009, so comparing these results directly to modern vehicles may not be entirely relevant.

What Colors Options are Available?

Exterior Colors
Black
Arctic White
Iridium Silver Metallic
Obsidian Black Metallic
Mars Red
Diamond Black Metallic
Quartz Blue Metallic
Steel Grey Metallic
Tealite Blue Metallic
Interior Colors
Black Leather
Grey Leather
Alpaca Grey Leather
Black MB-Tex
Grey MB-Tex
Almond Beige Leather
Almond Beige MB-Tex

2009 Mercedes-Benz CLK-Class Prices and Market Value

When new, the 2009 Mercedes-Benz CLK-Class ranged from approximately $48,000 to $60,000+, depending on the trim level and options. As of today, used market prices typically range from $8,000 to $18,000+, depending on condition, mileage, and location. The CLK-Class has depreciated significantly due to its age and the inherent depreciation of luxury vehicles. Factors affecting resale value include mileage, condition (both mechanical and cosmetic), service history, and the presence of desirable options (e.g., navigation, premium audio). Convertibles tend to hold their value slightly better than coupes.

2009 Mercedes-Benz CLK-Class Cost of Ownership

The 2009 Mercedes-Benz CLK-Class is generally considered costly to own. Insurance premiums are higher than average due to its luxury status and repair costs. Fuel economy is decent for the CLK350, but the CLK550 can be thirsty. Maintenance and repair costs can be substantial, especially if performed at a Mercedes-Benz dealership. Parts can be expensive, and some repairs require specialized knowledge. Budgeting for regular maintenance and potential repairs is essential for long-term ownership.

2009 Mercedes-Benz CLK-Class Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity 62.08 liters
City Mileage 7.23 km/l
Highway Mileage 10.63 km/l

2009 Mercedes-Benz CLK-Class Safety Rating

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

2009 Mercedes-Benz CLK-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 CLK-Class Insurance

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

How Does the 2009 Mercedes-Benz CLK-Class Compare to Other Convertible?

The 2009 Mercedes-Benz CLK-Class competed with luxury coupes and convertibles such as the BMW 3 Series (coupe/convertible), Audi A4/A5 (coupe/convertible), and Lexus IS (convertible). In terms of performance, the CLK550 offered strong acceleration, rivaling the BMW 335i and surpassing the Lexus IS 350C. The CLK350 offered a more balanced approach, similar to the Audi A5 3.2.

Regarding features, the CLK-Class offered a comparable level of luxury and technology, although the BMW 3 Series often had a slightly more driver-focused interior, while the Lexus IS prioritized reliability and ease of use. Reliability is where the CLK-Class can fall short compared to the Lexus IS. The BMW 3 Series generally offers a sportier driving experience, while the Audi A5 provides a stylish design and available all-wheel drive.

Alternatives to the CLK-Class include the BMW 3 Series (for a sportier driving experience and generally better reliability), the Audi A5 (for stylish design and available AWD), and the Lexus IS (for superior reliability). Ultimately, the best choice depends on individual priorities and preferences. If reliability is paramount, the Lexus IS is a strong contender. If a sportier driving experience is desired, the BMW 3 Series is a good choice. If styling is a key factor, the Audi A5 is worth considering.

Ranks #115 Convertible

1 2005 Toyota MR2 Spyder (0.0★)
2 2015 Lexus IS (0.0★)
3 2009 Honda S2000 (4.0★)
4 2023 Mazda MX-5 Miata RF (4.0★)
5 2023 BMW 8 Series (0.0★)
6 2021 Ford Mustang (5.0★)
7 2020 Mercedes-Benz SL-Class (0.0★)
8 2023 Audi S5 Sportback (0.0★)
9 2023 Ferrari F8 Spider (0.0★)
10 2023 Porsche 718 Boxster (4.0★)
11 2021 Jeep Compass (5.0★)
12 2019 Buick Cascada (0.0★)
115 2009 Mercedes-Benz CLK-Class (5.0★)

Final Verdict: Is the 2009 Mercedes-Benz CLK-Class a Good Convertible?

The 2009 Mercedes-Benz CLK-Class is ideal for buyers seeking a stylish and comfortable luxury coupe or convertible at a relatively affordable price point on the used market. It's worth buying *if* you're prepared for potentially higher maintenance and repair costs associated with an aging luxury vehicle. A pre-purchase inspection by a qualified mechanic is essential. The CLK350 offers a good balance of performance and efficiency, while the CLK550 provides a more thrilling driving experience. Consider a well-maintained example with a thorough service history. Those prioritizing reliability above all else might be better served by a Lexus IS convertible.

2009 Mercedes-Benz CLK-Class Owner Reviews

4.63
Consumer Rating, Based on 27 Consumer Reviews
Overall rating
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David on June 13, 2022

2009 CLK200 - Fun car combined with luxury driving

Bought a 12 year old 2009 CLK 200 coupe petrol with 100K on the clock. Styling is sleek Driving, on cold engine the gearbox likes to hold onto the lower gears longer than I would like and I am told it does this to warm up the catalytic converter quickly. I don’t like that feature because if your a little heavy on the accelerator then your going to red line it on cold. To offset this I drive in Comfort mode and very light on the accelerator until warm. Short trips is not great on petrol especially if your engine doesn’t warm right up you will notice your mpg going below 20mpg easily if you are heavy on the accelerator. Long motorway journeys this car comes into its own and is an absolute pleasure to drive, smooth as silk and loads of acceleration power when you need it, it will absolutely blast off brilliantly on motorway driving so watch that speedo because you will very quickly shoot way past the speed limit. Will get 30-36mpg on motorway driving. Engine is very quiet and it does stand up to some really hard driving. Interior. Is comfortable and I’m 6,1 and 108 kilos and it fits me well. The only layout I don’t like is the placement of the window switches on the drivers side, why they didn’t put them by the gear lever I don’t know. Engine is quiet and the supercharger makes a nice noise when you put your foot down. I have found this car very easy to service myself, as with any car the more good quality oil changes the better. Plenty of good examples out there to buy even though the years are now ticking by you can find some great ones out there. Fun car combined with luxury driving.

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Lorita green on March 17, 2021

Great vehicle

I loved the price and drive of the vehicle! I love the sunroof and 2 door style. I will definitely be back. The color is exactly what I was looking for as well

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Calgary AMG on April 9, 2020

performance and luxury

we have owned 31 vehicles ( still have 3 Benz) mostly european luxury & sports. Our CLK is a 2009 cabrio with AMG pkg. This is the most satisfying to drive. solid , quiet , smooth & fast. We've driven 400 km with top down in great comfort.

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Mercedes Chaz on March 7, 2020

Great sports car with plenty of power. Classic AMG

Great driving experience Sports car feel with luxury features Plus paddle shifters for sports enthusiasts Mechanical maintain records for review Sunroof moonroof low profile tires eventuate the AMG look

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Doyle on February 12, 2020

Finest car I have ever owned!

My Mercedes Benz CLK 550 is by far the finest car I have ever owned. At eleven years old, it is better than any new car I ever had, and I've had several!

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Lumark630 on August 21, 2019

Great vehicle.

The 5.5 litre engine is incredible. If you want a fun and sporty convertible, look no further. I had a 350 and it was great, too. But, nothing beats a V8. Get one while they are still available.

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Ehsan on August 14, 2019

Comfortable

This car is really amazing car for summer I like the amg exhaust and the sound is really load and super amazing and family car for going to beach

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bb12 on June 28, 2019

Most reliabl car i ever owned

This car has it all sports, comfort, luxury and a family car despite being a coupe. Excellent visibility as it does not have B pillar and almost no blind spot. It is the only coupe with back side windows rolls down

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GJ_FLI on June 15, 2019

Incredible Car. Most fun I’ve ever owned.

Mercedes and AMG have a special synergy. This car is no exception. The CLK 550 with the AMG Sport Package is one of the most satisfying coupes to drive of its age. The power, handling, looks and comfort all combine to make this car one heck of a value for the money.

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bonspy on January 17, 2019

My second favorite Mercedes Benz

The 2009 Mercedes Benz CLK 550 is a head turner with plenty of attitude under the hood. With 381 horsepower the CLK 550 is plenty powerful enough to plant you into your leather seats nicely. It handles extremely well and provides a comfortable ride as well. The interior is well thought out and has the ergonomic qualities that I look for in a luxury car. However, with a push of a button, ending the traction control, the car turns into a beast that requires some deft driving to maintain control. With nearly 400 horsepower and nearly 400 lb/ft of torque the car can easily overwhelm a novice driver. The traction control button is there for a reason and unless you have had some driving schools teaching you to drive such a car I would suggest leaving the traction control button alone. I must say that I've had some issues with reliability with this car. The convertible top controls do not work and neither does the trunk. After replacing the hydraulic pump the top still does not work, which is very disappointing. Also, the Mercedes Benz dealer has been of little assistance in fixing the problems with the top. Their solution was a $3500 new top, which is unacceptable to me. On the other hand, not being able to use the convertible top is not such a big deal to me and I enjoy driving the car regardless. Since I live in a state that actually has a winter season I should let you know that Mercedes has figured out how to build a car that is comfortable in winter even with a convertible top. The car is nice and toasty on the inside, even when winter temperatures are in the low teens, so kudos for German engineering on that note. All in all I love this car and would recommend it to anyone that likes a beautiful car that has lots of power and amenities. I would definitely buy another one, although this time I would buy a coupe! LOL!

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Jovan

Jovan specializes in interpreting vehicle records and making sense of VIN data. With over 10 years of experience in the automotive data industry, his work ensures that every report is clear, accurate, and useful for car buyers.