Mercedes-Benz R171 SLK-Class
The second-generation R171 SLK brought aggressive SLR McLaren styling and the innovative Airscarf system to Mercedes' compact roadster. It's an affordable entry into premium top-down motoring, with the V8-powered SLK 55 AMG being the most sought-after model.
Find one with Spotter →Mercedes-Benz R171 SLK-Class sold for a median of $8,800 over the last 12 months, based on 27 auction sales; the middle 50% sold between $7,145 and $13,675. 777 currently for sale.
Listings
The R171 is the second-generation SLK-Class, sold from 2005 to 2011. It introduced a much more aggressive design inspired by the Mercedes-Benz SLR McLaren, a significant departure from its predecessor's softer lines. The R171 continued to feature the folding 'Vario-Roof' hardtop but added the innovative 'Airscarf' system, which blows warm air on occupants' necks for more comfortable top-down driving in cool weather. Powertrains included V6 options in the SLK 280, SLK 300, and SLK 350, but the standout is the SLK 55 AMG with its 5.4L naturally aspirated V8.
The SLK 55 AMG is the most collectible model by a wide margin, packing a hand-built V8 into a compact roadster chassis. Its performance and sound make it a unique modern muscle car in a German suit. For other models, the appeal lies in getting a stylish, comfortable, and well-engineered hardtop convertible for a very reasonable price. The R171's design has aged well, and it offers a premium experience that feels more special than its current market value suggests.
Today, the R171 SLK-Class sits in a depreciation sweet spot, with an average transaction price of just over $12,000. Non-AMG V6 models offer a tremendous amount of style and comfort for the money, making them excellent entry points into the premium roadster market. The SLK 55 AMG commands a significant premium, with the best examples selling for over $30,000, but it still represents a great value compared to other V8-powered European sports cars from the era.
Buying Tips
- Check the Vario-Roof for smooth, quick, and quiet operation. The hydraulic cylinders are known to leak, so inspect the trunk headliner and floor for any signs of fluid.
- M272 V6 engines (SLK 280/350) built before 2007 can suffer from premature balance shaft gear wear, a very expensive repair. Check service records to see if the work has been performed.
- The 7G-Tronic automatic transmission can develop faults with its conductor plate, leading to harsh shifts or getting stuck in gear. Ensure the transmission shifts cleanly in all modes.
- On SLK 55 AMG models, listen for excessive valvetrain noise and check for oil leaks from the valve cover gaskets, which are common.
- Inspect the interior plastics on the center console and door pulls. The soft-touch coating is notorious for scratching and peeling, which is unsightly and difficult to repair.
Prices for the R171 SLK-Class range from under $1,000 for project cars to $38,000 for top-spec SLK 55 AMG examples.
1,667 Mercedes-Benz R171 SLK-Class vehicles have been tracked across auctions and listings on Hypercars, with 777 currently live.
Data sourced from Bring a Trailer, Cars & Bids, eBay Motors, PCarMarket, and Collecting Cars. Updated daily.
Frequently Asked Questions
How much does a Mercedes-Benz R171 SLK-Class cost?
Over the last 12 months, Mercedes-Benz R171 SLK-Class sold for a median of $8,800 across 27 auction sales tracked on Hypercars; the middle 50% sold between $7,145 and $13,675. There are 777 currently for sale.
How many Mercedes-Benz R171 SLK-Class listings are for sale right now?
There are 777 Mercedes-Benz R171 SLK-Class listings currently live across auctions, dealers, and marketplaces tracked by Hypercars.