The R172 generation began life in 2011 as the third and final version of the SLK-Class. It continued the successful formula of a compact roadster with a power-retractable hardtop, known as the Vario-Roof. For the 2017 model year, a mid-cycle update brought refreshed styling and a new name, the SLC-Class, to align with Mercedes' updated nomenclature. The top performance models are the most sought-after, from the early SLK 55 AMG with its naturally aspirated 5.5L V8 to the later Mercedes-AMG SLC 43 and its 3.0L twin-turbo V6.
Today, the R172 market offers significant value. With an average sale price just under $20,000, it's an accessible entry into modern Mercedes-Benz roadster ownership. While early, four-cylinder SLK 250 models represent the most affordable examples, the V6-powered SLK 350 and AMG models command higher prices, especially with low mileage and complete service histories. The SLC 43, being the final AMG version, and the limited Final Edition models are the most collectible variants and will likely see the strongest value retention.
Buying Tips
- The Vario-Roof is a complex hydraulic system. Operate it multiple times to ensure it moves smoothly without hesitation, and check the trunk and headliner for any signs of hydraulic fluid leaks.
- On the four-cylinder M271 engine in the SLK 250, listen for rattling on startup, which can indicate timing chain guide or tensioner issues.
- Verify that all electronics function correctly, including the COMAND infotainment system, the optional Airscarf neck-level heating, and the Magic Sky Control dimmable glass roof if equipped.
- Inspect the AMG models carefully for signs of hard use. Check for curb rash on the larger alloy wheels, uneven tire wear, and ensure the service records for the high-performance engines and brakes are up to date.
Based on 41 recent sales, prices range from $6,200 to $42,791.
723 Mercedes-Benz R172 SLC-Class vehicles have been tracked across auctions and listings on Hypercars, with 350 currently live. Sold prices range from $500 to $48,871.
Data sourced from Bring a Trailer, Cars & Bids, eBay Motors, PCarMarket, and Collecting Cars. Updated daily.
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