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2011 Mercedes-Benz SLK-Class Overview, Reviews, Ratings & Specs

Rating: 4.85
Based on 12 Owner Reviews â–¶
Simon A | March 31, 2025
The 2011 Mercedes-Benz SLK-Class is a luxury roadster, part of the second generation (R171) produced from 2004 to 2011. Its retractable hardtop offers open-air driving with coupe-like security. Key trims include the SLK300, SLK350, and SLK55 AMG. The pricing range when new was approximately $47,000 to $68,000. It's popular for its blend of Mercedes-Benz luxury, sporty handling, and the convenience of a folding hardtop, providing year-round usability.
The Good

The 2011 SLK-Class offers a compelling blend of performance and luxury. Its retractable hardtop appeals emotionally, while Mercedes-Benz's reputation for comfort and safety offers practical reassurance. The powerful engines provide engaging performance. While not the most fuel-efficient, it provides a desirable mix of sporting thrills and premium features.

The Bad

Potential weaknesses of the 2011 SLK-Class include the complex retractable hardtop mechanism, which can be prone to failure. Electronics can sometimes be problematic. Suspension components and the engine mounts might require replacement as the car ages. Regular maintenance is crucial to prevent costly repairs.

2011 Mercedes-Benz SLK-Class: Quick Overview

Key specs for the 2011 Mercedes-Benz SLK-Class:

  • Engine Options:
    • SLK300: 3.0L V6
    • SLK350: 3.5L V6
    • SLK55 AMG: 5.5L V8
  • Horsepower:
    • SLK300: 228 hp
    • SLK350: 300 hp
    • SLK55 AMG: 355 hp
  • Fuel Economy (EPA Estimated):
    • SLK300: 19 mpg city / 26 mpg highway
    • SLK350: 19 mpg city / 25 mpg highway
    • SLK55 AMG: 16 mpg city / 22 mpg highway
  • 0-60 Times:
    • SLK300: Approximately 6.3 seconds
    • SLK350: Approximately 5.4 seconds
    • SLK55 AMG: Approximately 4.9 seconds
  • Towing Capacity: Not Applicable (Towing is not recommended for the SLK-Class)
  • Trim-Level Features:
    • SLK300: Leather upholstery, power-adjustable seats, dual-zone climate control, Bluetooth connectivity, and a premium audio system.
    • SLK350: Adds more powerful engine, sport-tuned suspension, and upgraded interior trim.
    • SLK55 AMG: High-performance engine and brakes, AMG-specific styling, sport seats, and enhanced performance features.

2011 Mercedes-Benz SLK-Class Specifications

Vehicle Information
Year 2011
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 3208 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 7-Speed Automatic
Transmission Type Automatic
Transmission Speeds 7-Speed
Drivetrain Rear-Wheel Drive
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) $53,300
Invoice Price $49,569
Delivery Charges $875

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Analysis

What Problems Does the 2011 Mercedes-Benz SLK-Class Have?

Frequently reported problems for the 2011 Mercedes-Benz SLK-Class often revolve around the complex systems within the vehicle. The retractable hardtop mechanism can be a source of concern, with reports of malfunctions and failures, requiring expensive repairs. Electrical issues, such as malfunctioning sensors and glitches in the infotainment system, are also relatively common.
Long-term reliability concerns include potential oil leaks, particularly around the engine and transmission. Suspension components, such as bushings and ball joints, may wear out faster than expected, especially on models frequently driven on rough roads. The SLK55 AMG, with its high-performance engine, can be more susceptible to engine-related issues if not properly maintained.
Recalls for the 2011 SLK-Class have been issued for various safety-related concerns, including issues with the fuel system and airbags. It is recommended to check the vehicle's VIN with the National Highway Traffic Safety Administration (NHTSA) to ensure all applicable recalls have been addressed.
Regular maintenance and diligent attention to warning signs are crucial for mitigating potential problems and ensuring long-term reliability of the 2011 SLK-Class. Potential buyers should have a pre-purchase inspection performed by a qualified mechanic specializing in Mercedes-Benz vehicles.

How long will the 2011 Mercedes-Benz SLK-Class last?

Based on owner data and maintenance habits, a well-maintained 2011 Mercedes-Benz SLK-Class can realistically provide 150,000 to 200,000 miles or 10-15 years of service. Long-term durability hinges on consistent maintenance, particularly addressing potential oil leaks, suspension wear, and electrical issues. Weaknesses over time include the aforementioned retractable hardtop malfunctions and potential corrosion in regions with harsh winters. Preventive maintenance and addressing issues promptly are key to maximizing its lifespan.

What Technology & Safety Features are Included?

The 2011 Mercedes-Benz SLK-Class comes standard with a range of tech and safety features. Built-in tech includes a COMAND infotainment system with a central display, Bluetooth connectivity, and a premium audio system. Entertainment features consist of a CD player and available satellite radio.
Driver-assistance features are relatively limited compared to modern vehicles but include standard stability control, anti-lock brakes, and traction control. Optional features include Parktronic parking sensors, which assist with maneuvering in tight spaces.
Safety features include front and side airbags, as well as active head restraints to mitigate whiplash injuries. The SLK-Class also features a strong safety cage design. Crash-test ratings from the IIHS and NHTSA vary depending on the specific year and testing methodology. Generally, the SLK-Class performs well in frontal and side-impact crash tests, providing good occupant protection.
Optional features available for the 2011 SLK-Class include a navigation system, leather upholstery upgrades, heated seats, and the Airscarf system, which blows warm air on the neck for comfortable open-air driving in cooler temperatures. The Airscarf is a particularly desirable option for those who plan to use the roadster year-round.

What Colors Options are Available?

Exterior Colors
Black
Arctic White
Mars Red
Diamond White Metallic
Obsidian Black Metallic
Steel Grey Metallic
Palladium Silver Metallic
Iridium Silver Metallic
Graphite Grey
Interior Colors
Almond Beige
Black Leather
Ash Grey Leather
Red Leather

2011 Mercedes-Benz SLK-Class Prices and Market Value

The 2011 Mercedes-Benz SLK-Class had a starting price of around $47,000 when new, with the SLK55 AMG exceeding $68,000. Current used market prices typically range from $12,000 to $25,000, depending on condition, mileage, and trim level. The SLK-Class has depreciated considerably due to age, mileage, and the availability of newer models. Factors affecting resale value include the car's condition, maintenance history, mileage, and the presence of desirable options like Airscarf and navigation. Lower mileage examples in excellent condition command higher prices.

2011 Mercedes-Benz SLK-Class Cost of Ownership

The 2011 Mercedes-Benz SLK-Class is generally considered costly to own. Insurance premiums are typically higher due to its classification as a luxury sports car. Fuel costs can be significant, especially for the SLK350 and SLK55 AMG models. Maintenance and repair costs are also above average, as parts and labor can be expensive. Long-term ownership requires diligent maintenance to prevent costly repairs to the retractable hardtop, electrical systems, and engine components.

2011 Mercedes-Benz SLK-Class Fuel Efficiency

Fuel Type Gasoline (Required)
Fuel Capacity 18.5 gallons
City Mileage 19 miles/gallon
Highway Mileage 25 miles/gallon

2011 Mercedes-Benz SLK-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 Not Tested
Side Impact Test Results Not Tested

2011 Mercedes-Benz SLK-Class Insurance

Insurance for a 2011 Mercedes-Benz SLK-Class is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.

How Does the 2011 Mercedes-Benz SLK-Class Compare to Other Sedan?

The 2011 Mercedes-Benz SLK-Class competes with roadsters like the BMW Z4, Audi TT, and Porsche Boxster. In terms of performance, the SLK350 offers comparable power to the Z4 and TT, but the Boxster generally provides a more engaging driving experience. The SLK55 AMG delivers potent acceleration, rivaling the performance of higher-end Boxster models.
Regarding features, the SLK-Class offers a retractable hardtop, a feature that provides coupe-like security and weather protection, setting it apart from the soft-top Z4 and Boxster. The Audi TT offers similar features but in a more compact package. In terms of reliability, the SLK-Class can be prone to some issues, as mentioned previously, but with proper maintenance can be reliable. The Porsche Boxster generally has a better reliability record.
Price-wise, the SLK-Class typically falls between the Audi TT and Porsche Boxster. As used cars, a 2011 SLK represents good value, but potential buyers should factor in higher maintenance costs.
Alternatives to consider include the BMW Z4 for its sporty handling, the Audi TT for its stylish design and available quattro all-wheel drive, and the Porsche Boxster for its superior driving dynamics. If performance and handling are top priorities, the Boxster is a better choice. If a retractable hardtop is essential, the SLK-Class remains a strong contender.

Ranks #670 Sedan

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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★)
670 2011 Mercedes-Benz SLK-Class (5.0★)

Final Verdict: Is the 2011 Mercedes-Benz SLK-Class a Good Sedan?

The 2011 Mercedes-Benz SLK-Class is ideal for those seeking a stylish and comfortable roadster with the convenience of a retractable hardtop. It's a good buy on the used market for enthusiasts who appreciate Mercedes-Benz luxury and sporty handling, but are aware of potential maintenance costs. It's worth buying if a pre-purchase inspection reveals no major issues and the car has a documented maintenance history. The SLK300 offers a good balance of performance and economy, while the SLK350 provides a more spirited driving experience. The SLK55 AMG is for those seeking maximum performance, but comes with higher running costs.

2011 Mercedes-Benz SLK-Class Owner Reviews

4.85
Consumer Rating, Based on 12 Consumer Reviews
Overall rating
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DJ Hott on July 13, 2018

Great looks and design!

So far i love this car it's comfortable and i'm 6'0" 225lbs good leg room, lots of pep, great braking, handles like a champ,I get all kinds of looks when I drive by top up or down!!!

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Buck on March 2, 2018

Outstanding car for the money!

This car is loaded and is fun to drive. Drop the top in less than 1 minuet to enjoy to sun and wind.

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BOB IAG on December 6, 2017

One of a kind !!! LOW,LOW milage !!!

Great car, we just don't drive it enough. Bought it for my wife and we have two other vehicles that we drive most of the time.

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Alan Evora on September 17, 2017

owned 2 back to back, oil changes only, great car=

Hard top convertible, well engineered, reliable, stylish, comfortable and a trunk big enough for a full set of golf clubs

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crome dome on May 13, 2012

Love my SLK

This car is fun and sporty and purrs like a kitten. The breaks and steering are very precise. The car is easy to park but because the front is so low watch out for the curb. The front defroster, elecgtric tilt steering wheel and rear speaker performance are all disapointing . The convertable hardtop disappears like magic. Remember to close the interior shell in the trunk or the top will not close. I keep the running lights on to not get cut off in traffic. Washing the car is snap because of it's compact size. Previously I drove a 2008 GMC pick up and the insurance premium was $60 more for 6 months than the SLK.

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Norfolk_SLK on October 28, 2011

SLK300 = Miles of smiles!

I have wanted one of these ever since they came out in 1998... So I asked the guy above and saved my money and waited. Bought the car in January 2011 and drove it home, and have not regretted it. the car is solid, safe, fast as I need. This vehicle gets 23-28 in town (18-24 on snow) and 30-34 mpg at 65 with the a/c on arctic on the highway. The performance is fast and sophisticated - if you want a sledgehammer buy the SLK55 AMG! This car is comfortable - I'm 6' 2" and it is adjustable down to anyone smaller. The interior is in my opinion better laid out, roomier and more comfortable than the SL's. The 2011 is the best of the second generation series W172's in styling inside and out. This car feels SOLID and safe. You ride in the car not on it. SLK's are not cheap even with a lease, but I can't think of any car I would trade you mine for at four times the price. This car is a daily driver I have driven it in all kinds of weather, from snow to sweltering and my SLK has never let me down or left me stranded. (Some advice if you drive year round- if you live where it snows get the best SNOW tires you can, and anticipate where you are going and how to get there and you can do just fine, but be warned SLKs are no 4matic ML or G-Wagon. My SLK is the best present I have ever given myself! Thanks Big Guy in the sky for the blessing!

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dude on August 25, 2011

slk

Style, Comfort, Perfomance all words to describe the Mercedes Bendz SLK. If u want a Mercedes, the SLK is the car for you

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DJ Hott on July 13, 2018

Great looks and design!

So far i love this car it's comfortable and i'm 6'0" 225lbs good leg room, lots of pep, great braking, handles like a champ,I get all kinds of looks when I drive by top up or down!!!

Was this review helpful?
1
0

Buck on March 2, 2018

Outstanding car for the money!

This car is loaded and is fun to drive. Drop the top in less than 1 minuet to enjoy to sun and wind.

Was this review helpful?
1
0

BOB IAG on December 6, 2017

One of a kind !!! LOW,LOW milage !!!

Great car, we just don't drive it enough. Bought it for my wife and we have two other vehicles that we drive most of the time.

Was this review helpful?
1
0
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Simon A

Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.