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Used Mercedes-Benz SLK300 for Sale

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About the Mercedes-Benz SLK300

Vehicle Summary

Indulge in a sporty and luxurious roadster with the Mercedes-Benz SLK300, which was released as the base model of the SLK-Class and produced through 2016. This small-yet-mighty roadster features a power-retractable convertible top, letting you feel the wind through your hair as you blaze your own trail. 

On the SLK-Class' second generation (2005-2011), the rear-wheel-drive SLK300 model is equipped with a zesty 3.0L V6 engine at 228 hp. Looking for even more excitement behind the wheel? The third-generation SLK300 is powered by a turbocharged 2.0L four-cylinder engine at an impressive 241 hp.

No matter which generation of SLK300 you lean towards, you'll enjoy such standard equipment as a power-retractable convertible top, robust sound system, and Bluetooth® connectivity for easy hands-free calling and control of your music. From a space standpoint, every SLK300 offers 10.1 cubic feet of cargo space behind its seats (with roof up), which is great for storing a couple of duffel bags for a weekend road trip. If you're shopping for a sporty roadster to power your adventures, a used Mercedes SLK300 is definitely worth a look.

Unless otherwise noted, information related to these featured vehicles comes from third-party sources, including manufacturer information. Product and company names may be trademarks™ or registered® trademarks of third-party entities. Use of them does not imply any affiliation with or endorsement by these entities.


Q: What is the difference between the Mercedes-Benz SLK300 and the Mercedes-Benz SLK250?

A: The SLK250 temporarily replaced the SLK300 as the model's base trim from 2012 through 2015. The main difference between the two is powertrain; the 2015 SLK250 is equipped with a turbocharged 1.8L four-cylinder engine at 201 hp and either a six-speed manual or seven-speed automatic transmission. The 2016 SLK300, on the other hand, is outfitted with a more powerful 2.0L four-cylinder turbo at 241 hp and a standard nine-speed automatic transmission.

Q: What is the fuel economy of the 2016 Mercedes-Benz SLK300?

A: Many factors can impact fuel economy. However, the 2016 rear-wheel-drive Mercedes-Benz SLK300 with turbocharged 2.0L four-cylinder engine and nine-speed automatic transmission gets an EPA-estimated 27 mpg combined.1

Q: Does the 2016 Mercedes-Benz SLK300 have a hardtop or soft top?

A: The 2016 SLK300 comes standard with a power-retractable hardtop.

Q: Was the Mercedes-Benz SLK Class discontinued?

A: While the last model year for the Mercedes SLK was 2016, the vehicle was simply rebranded as the SLC class and is still in production as of the 2020 model year.

1Fuel economy figures are based on EPA estimates for when vehicle sold as new. Fuel economy may vary for reasons like driving conditions and vehicle history. Unless specified, figures are for vehicles equipped with an automatic transmission. See

Mercedes-Benz SLK300 Trim Configurations

The SLK300 was an intermittent part of the second- and third-generation SLK-Series production. From 2012 through 2015, the SLK300 was temporarily replaced by the SLK250 as the base model before returning in 2016. If you're thinking about buying a used Mercedes SLK300 model, it may be helpful to explore some standard features from each generation.

For the second-generation SLK300, you can expect the following standard equipment on used 2011 models:

  • Retractable hardtop
  • 17-inch wheels
  • Manual dual-zone climate control
  • Nine-speaker sound system
  • Leather upholstery

For the third generation SLK-Series, standard equipment on the 2016 SLK300 model includes:

  • Eight-way power-adjustable front seats with memory functions
  • Power-retractable hardtop with fixed glass roof
  • Automatic windshield wipers
  • 5.8-inch central display
  • Premium vinyl upholstery

While the SLK300 was only ever offered in one trim level, there were some package options available as add-ons when this model was sold new. Check out features from the packages offered on the 2016 model below; you just might see some of these features on used models as you shop.

Premium 1 Package

  • Heated seats and neck heater
  • Keyless entry and ignition
  • 11-speaker Harman Kardon® sound system
  • Remote roof controls

Premium 2 Package

  • Automatic dual-zone climate control
  • Built-in navigation system with voice controls
  • Blind-spot-monitoring system

Premium 3 Package

  • Adaptive cruise control
  • Front and rear parking sensors
  • Automatic parallel parking system
  • Lane-keep assist technology

Sport Appearance Package

  • 18-inch wheels
  • Red ambient cabin lighting
  • Exclusive styling accents

Reviews for Mercedes-Benz SLK300

Overall Rating

4.6 out of 5(11 reviews)

Pure Exhilaration!

Two words that most aptly describe this car: pure exhilaration! I've owned over thirty cars and my 2010 Mercedes-Benz SLK 300 beats them all hands down. The interior appears cramped at first outward glance, but the body-contouring seat fits my 5'10" frame perfectly. This six-cylinder car has impressive rapid acceleration capabilities and hugs the road as if it were on rails. The convertible top is truly a feat of German engineering at its finest. The Formula One inspired front nose is beautiful and slices through the wind with the gentlest of ease. I purchased this as a pre-owned vehicle as I do not care for the front nose of the 2012 and 2013 SLK models, which appears more like those on today's many newly domestic-made automobiles. The six-CD/DVD navigation system, integrated Bluetooth phone capabilities, and voice command prompts add bells and whistles to the car's numerous bells and whistles. As I've stated at the beginning of this review, this car is pure exhilaration!

- Lew, 2010 Mercedes-Benz SLK300

Sexy Sophisticated

This is a super fun car to drive. I have always wanted a smaller car that you can park with out a problem. I love everything about it. The Con's would be it is small for a tall person over 6ft other then that this car rocks.

- Alleykid, 2010 Mercedes-Benz SLK300

SLK Roadster

I bought the same car up in Boston, MA., with only 32K miles on it. It is fully loaded, but without the nav system, for the same price. The only negative I have is that, with any coup, the doors open wide. So, getting in and out in a cramped parking lot is a pain. To get into the car easily, you need to be able to open the door fully. Other than that you are squeezing into it. The ride is like most sports vehichles. It hugs the turns, grips the road, but has a bumpy suspension. Like BMW says, you're not buying a luxury sedan you are buying a sports car. I did take it out on an empty stretch of straight highway and got it up to 120 mph without any trouble at all, and VERY quickly. The car drove incredibly well at that speed, and had plenty of room to peg the needle if I hadn't been worried about running into a "Statie". Maybe one day I will take it to Charlotte/Concord Speedway and see what it can really do.

- DiveMex, 2009 Mercedes-Benz SLK300

This price does not include tax, title, and tags. Additional fees may also apply depending on the state of purchase.