by VIN, Year, Make, Model by License Plate

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

Rating: 4.57
Based on 12 Owner Reviews
Cathleen V | March 31, 2025
The 2009 Mercedes-Benz SLK-Class is a compact roadster, part of the second generation (R171) that ran from 2004-2011. It's known for its retractable hardtop, blending open-air fun with coupe-like security. Key trims included the SLK280, SLK300, and SLK350. The AMG variant offered enhanced performance. Original pricing ranged from around $46,000 to over $60,000. Its combination of luxury, sporty handling, and the practicality of a hardtop convertible made it popular.
The Good

The 2009 SLK-Class offers a compelling blend of performance and luxury. Its responsive engines and sporty handling provide an enjoyable driving experience, appealing to emotional buyers. The retractable hardtop adds practicality, while the comfortable interior and Mercedes-Benz build quality offer peace of mind. It balances style and substance well. The car is generally reliable, making it a solid value proposition.

The Bad

Potential weaknesses of the 2009 SLK-Class include potential issues with the retractable hardtop mechanism, which can be costly to repair. Some owners have reported electrical problems and issues with the Sensotronic Brake Control system (though less common on this model year). Suspension components and bushings may also wear over time, requiring replacement.

2009 Mercedes-Benz SLK-Class: Quick Overview

  • Engine Options:
    • SLK280: 3.0L V6
    • SLK300: 3.0L V6 (replaced the 280 mid-year)
    • SLK350: 3.5L V6
    • SLK55 AMG: 5.5L V8
  • Horsepower:
    • SLK280/300: 228 hp
    • SLK350: 300 hp
    • SLK55 AMG: 355 hp
  • Fuel Economy (EPA Estimated):
    • SLK280/300: 18 mpg city / 26 mpg highway (estimated)
    • SLK350: 17 mpg city / 24 mpg highway (estimated)
    • SLK55 AMG: 14 mpg city / 20 mpg highway (estimated)
  • 0-60 Times:
    • SLK280/300: Approximately 6.2 seconds
    • SLK350: Approximately 5.4 seconds
    • SLK55 AMG: Approximately 4.9 seconds
  • Towing Capacity:
    • Not recommended or equipped for towing.
  • Trim-Level Features:
    • SLK280/300: Leatherette upholstery, power-adjustable seats, dual-zone climate control, premium audio system, alloy wheels.
    • SLK350: Leather upholstery, upgraded audio, sport-tuned suspension, unique styling elements.
    • SLK55 AMG: High-performance engine, AMG-tuned suspension, AMG styling, premium leather, upgraded brakes, and various performance enhancements. Keyless Go.

2009 Mercedes-Benz SLK-Class Specifications

Vehicle Information
Year 2009
Make Mercedes-Benz
Model SLK-Class
Trim -
Style -
Type Sedan
Category Sports Car
Manufacturing Details
Made In Germany
Manufacturing City BREMEN
Dimensions
Doors 2-Door
Curb Weight 3318 pounds
Gross Vehicle Weight Rating -
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 3.5 6
Engine Size 3.5L
Engine Cylinders 6
Transmission -
Transmission Type Automatic
Transmission Speeds -
Drivetrain Rear-Wheel Drive
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) $50,950
Invoice Price $47,384
Delivery Charges $875

Vehicle History Report

Vehicle
Specifications
Ownership
History
All History
Events
NMVTIS Title
History Check
Salvage/Rebuilt
Check
Accident
Check
Theft
Check
Open Lien
Check
Past Sale
Listings
Safety
Recalls
Odometer
Check
Market Price
Analysis

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

Frequently reported problems for the 2009 Mercedes-Benz SLK-Class often revolve around the retractable hardtop. Issues range from slow or malfunctioning operation to complete failure, potentially requiring expensive repairs. Electrical glitches, such as problems with the infotainment system or sensor malfunctions, have also been reported. While less frequent than in earlier models, some owners have experienced issues with the electronic stability control system. Suspension components, particularly bushings and ball joints, can wear out over time, leading to noises and reduced handling performance. Oil leaks, though not exceptionally common, can occur, especially around the valve cover gaskets and oil filter housing. Recalls for the 2009 SLK-Class were relatively limited, but it's always advisable to check the NHTSA website for any outstanding recalls specific to the vehicle's VIN. Long-term reliability concerns primarily relate to the complexity of the retractable roof and the potential for electrical gremlins as the car ages. Regular maintenance, particularly fluid changes and inspections, is crucial to minimize potential problems.

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

With proper maintenance, a 2009 Mercedes-Benz SLK-Class can easily provide 150,000 to 200,000 miles of service, or last well over 15 years. Longevity heavily depends on consistent upkeep, including regular oil changes, fluid flushes, and addressing minor issues promptly. Long-term durability is generally good, but weaknesses emerge in areas like the retractable hardtop mechanism, which can become problematic with age. Rubber components, such as seals and hoses, may also degrade over time, leading to leaks. Electrical systems can also be a source of trouble as the car ages, requiring careful diagnosis and repair.

What Technology & Safety Features are Included?

The 2009 Mercedes-Benz SLK-Class comes standard with a decent array of tech and safety features for its time. Standard features include a premium audio system with CD player and auxiliary input, dual-zone automatic climate control, power windows and locks, and cruise control.

Entertainment features included a Harman Kardon sound system, optional satellite radio, and a navigation system (often optional). Driver-assistance features were relatively limited compared to modern cars, but included features like electronic stability control (ESP), anti-lock brakes (ABS), and traction control. Optional features included parking sensors and a rearview camera (though less common).

Safety features include driver and passenger airbags, side airbags, and anti-lock braking system (ABS). It also has brake assist system, which helps to apply maximum braking force in emergency situations.

While crash-test ratings can vary, the SLK-Class typically performed well in safety tests, offering good protection for occupants in the event of a collision. It's important to consult the IIHS and NHTSA websites for specific crash-test ratings for the 2009 model year. Overall, the 2009 SLK-Class provides a reasonable level of technology and safety for its era, especially when equipped with optional features.

What Colors Options are Available?

Exterior Colors
Black
Arctic White
Flint Grey Metallic
Iridium Silver Metallic
Mars Red
Obsidian Black Metallic
Pewter Metallic
Andradite Green Metallic
Interior Colors
Almond Beige
Black Leather
Ash Grey Leather
Red Leather

2009 Mercedes-Benz SLK-Class Prices and Market Value

The 2009 Mercedes-Benz SLK-Class had a starting MSRP of around $46,000, with higher trims and options pushing the price over $60,000. As of today, used market prices typically range from $8,000 to $18,000, depending on condition, mileage, and trim level. The SLK-Class has depreciated significantly over time, as is typical for luxury vehicles. Factors affecting resale value include the car's condition, mileage, maintenance history, and the presence of desirable options. Models with low mileage, clean titles, and comprehensive service records command higher prices. The AMG variants generally hold their value better than the base models.

2009 Mercedes-Benz SLK-Class Cost of Ownership

Owning a 2009 Mercedes-Benz SLK-Class can be moderately costly. Insurance rates are generally higher than average due to the car's luxury status and potential repair costs. Fuel economy is decent but not exceptional. Maintenance and repair costs can be significant, especially for issues like the retractable hardtop or electrical problems. Long-term ownership requires diligent maintenance to avoid expensive repairs. While not the most economical car, it offers a premium experience that some buyers find worth the higher ownership costs.

2009 Mercedes-Benz SLK-Class Fuel Efficiency

Fuel Type Gasoline (Required)
Fuel Capacity 18.5 gallons
City Mileage 18 miles/gallon
Highway Mileage 26 miles/gallon

2009 Mercedes-Benz SLK-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 SLK-Class Insurance

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

How Does the 2009 Mercedes-Benz SLK-Class Compare to Other Sedan?

The 2009 Mercedes-Benz SLK-Class competes with roadsters like the BMW Z4, Audi TT, and Porsche Boxster. In terms of performance, the SLK350 and SLK55 AMG offer comparable or better power than many of their rivals, though the Boxster might offer a slightly more engaging driving experience. Feature-wise, the SLK-Class provides a good balance of luxury and technology, similar to the Z4 and TT. Reliability can be a concern, with the SLK's retractable hardtop being a potential weak point, while the Z4 is generally considered more reliable. The Audi TT boasts a more modern interior design.

Price-wise, the SLK-Class typically falls in the middle of the pack. Alternatives to consider include the BMW Z4 for better reliability and a more driver-focused experience, the Audi TT for a stylish and modern design, or the Porsche Boxster for superior handling. If reliability is a top priority, the Z4 might be a better choice. However, if you value the retractable hardtop and Mercedes-Benz cachet, the SLK-Class remains a solid option.

Ranks #695 Sedan

1 2023 Toyota Camry (5.0★)
2 2023 Honda Accord (0.0★)
3 2023 Lexus ES (0.0★)
4 2024 Subaru Legacy (5.0★)
5 2022 Mazda MX-30 (4.0★)
6 2024 BMW M3 (0.0★)
7 2023 Ford Mustang (5.0★)
8 2023 Mercedes-Benz AMG GT (0.0★)
9 2023 Audi A3 (0.0★)
10 2023 Chevrolet Camaro (5.0★)
11 2023 Hyundai Elantra Hybrid (0.0★)
12 2023 Nissan Altima (4.0★)
695 2009 Mercedes-Benz SLK-Class (4.0★)

Final Verdict: Is the 2009 Mercedes-Benz SLK-Class a Good Sedan?

The 2009 Mercedes-Benz SLK-Class is ideal for buyers seeking a stylish and sporty roadster with the added practicality of a retractable hardtop. It's a good choice for those who appreciate Mercedes-Benz luxury and are willing to accept potentially higher maintenance costs. Whether it's worth buying depends on the individual car's condition and price. A well-maintained example with a comprehensive service history can be a worthwhile purchase. Consider the SLK350 for a balance of performance and features. Before buying, thoroughly inspect the retractable hardtop mechanism and check for any signs of electrical issues. A pre-purchase inspection by a qualified mechanic is highly recommended.

2009 Mercedes-Benz SLK-Class Owner Reviews

4.57
Consumer Rating, Based on 12 Consumer Reviews
Overall rating
Cancel
Thank You for Your Review!

We truly appreciate the time and effort you took to share your experience with us.

Uh oh!

Something went wrong, please try again later.

Winston on May 2, 2019

Fun to drive, small for comfort driving, noisy

The car drives fast and has superb handling. There is quite a bit of cabin noise driving through bumps. LA traffic really kills the fun of this car.

Was this review helpful?
1
0

BR11 on April 23, 2019

AWESOME....

Normally-aspirated V-8 is the way to go. Option for the P30 AMG Performance Package for precision handling and braking performance!!! Hand-built engine is bullet-proof and provides the necessary longevity!

Was this review helpful?
1
0

Silkdress on December 11, 2018

Most reliable car I?ve owned

This car has a beautiful classic stylish design that is fast and drives great. When the top is down you feel like you don?t have a care in the world.

Was this review helpful?
1
0

BobF on June 30, 2018

Great looking car!

A real head turner for the 5 years I've owned it. Rare 6 speed manual, which has been loads of fun! Good road manners and handles very predictably. Highly recommended!

Was this review helpful?
1
0

Chrisbenz205 on June 25, 2018

Mercedes the best or nothing

I like it a lot. a lot of fun to drive and own. never gave me problems, decent gas mileage. Honestly would buy again. if i didn't already have 4 cars.

Was this review helpful?
1
0

Tyler on February 23, 2018

Excellent Performance and Quality

Great performance and a blast to drive!!! Build quality and reliability is outstanding! Great to drive a V8 again, after years of underpowered six and four cylinder cars.

Was this review helpful?
1
0

top686 on November 4, 2017

great little sports car

One hot little car all most 300 hp and still gets great mileage. A blast to drive. a hard top convertible.

Was this review helpful?
1
0

Enthusiast on September 2, 2012

Timeless style

Purchased my 2009 SLK 350 in July and have approx 1000 on the clock with it. Car performs as expected for a 300 hp auto. Amazed about how mild mannered it is under hard acceleration. traction control does it's job, but even with it turned off the car has tremendous grip. A few clicks and rattles when going slow with the top up, but some of this should be expected due to body flex and the torsion needs to show up somewhere. Rigid top panels are the weak link in that equation. Love it and would buy another one anyday.

Was this review helpful?
1
0

Third Benz on May 14, 2012

Comfortable Sports Car?

Finally found a CPO SLK350 with the combination of options, mileage, and color that met our requirements, after three months of looking. Was worth the wait! Originally had considered buying a certified pre-owned Porsche Boxster or Honda SR2000, but the more reviews I read, the better the SLK350 looked in terms of the comfort vs. sportiness trade off. The SLK is only a little less comfortable than our 2008 C350 Sport sedan, but has 32 more horsepower and sportier handling on county roads. Yet, it was comforatable enough for a four and a half hour, non-stop ride on the interstate. I am sure that for double or treble the money, there are other cars out there that I would like even better. But within my budget limitations, this car has the most bang for the buck.

Was this review helpful?
1
0

Jeffff on August 30, 2011

Great

Great car only problem is that it has an analog radio, which they fixed on the 2012 . I see no problems yet.

Was this review helpful?
1
0
Author Image
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.