The Mercedes-Benz R172 began its career under the legendary SLK name in 2011, before undergoing a mid-cycle facelift in 2016 and being renamed SLC to align with the brand's new nomenclature (proximity to the Classe C). This roadster with a retractable hardtop (Vario-roof) represents the end of an era for Mercedes, combining the comfort of a coupe with the pleasure of a convertible. Positioned against the BMW Z4 and Audi TT, the SLC stands out for its 'Grand Touring' orientation rather than being purely sporty, although the AMG versions offer top-tier performance. The overall reliability of the R172 generation is very good, provided you avoid the early 4-cylinder petrol engines (M271). The transition to the SLC name in 2016 coincided with the introduction of much more reliable engines (M270
The Mercedes SLC (and the SLK R172 in general) is an excellent Grand Touring roadster. The buying verdict depends entirely on the year and the engine. We strongly advise you to target a model badged SLC (post-2016) or a late 2015 SLK equipped with the 2.0L engine (M274). These versions offer remarkable reliability, an excellent 9G-Tronic gearbox, and high-level driving pleasure. The V6 versions (SLC 43 AMG or SLK 350) are safe bets for lovers of fine mechanics. On the other hand, avoid the SLK 200 and 250 produced between 2011 and 2014 (M271 engine) unless the complete timing system (chain, tensioners, adjusters) has been recently replaced with an invoice. The diesel (250 d) only makes sense for very high-mileage drivers and presents risks of clogging and costly chain issues.