Kia Stonic I (YB) (2017 – 2025)

Reliability score : 8.4/10

The Kia Stonic (Generation I, YB) is a B-segment crossover SUV based heavily on the Kia Rio hatchback. Introduced in 2017, it stands out with its sharp styling, agile handling, and extensive customization options. Unlike some competitors, it is exclusively front-wheel drive. A significant facelift in 2020 introduced 'Smartstream' mild-hybrid (MHEV) powertrains, upgraded infotainment, and enhanced safety features, while simultaneously phasing out the diesel engine in Europe. The Stonic is generally praised for its reliability and 7-year warranty, though its ride quality is notably firm and interior plastics are predominantly hard. Overall Reliability Note: Very Good.

✅ Strengths

Excellent 7-year / 150,000 km warranty (often transferable to second-hand buyers)
Agile and predictable handling with well-weighted steering
User-friendly and responsive infotainment system (especially post-2020 8-inch screen)
Mechanically robust engine lineup, particularly the MPI and CRDi blocks
Attractive exterior design with extensive two-tone color options

⚠️ Weaknesses

Firm ride quality, especially on 17-inch alloy wheels
Interior materials are dominated by hard, easily scratched plastics
Poor rear passenger legroom compared to class leaders (e.g., Renault Captur)
7-speed dry DCT automatic transmission can be jerky at low speeds
Diesel engine (1.6 CRDi) is noisy when cold and unsuitable for urban-only drivers

🎯 Verdict

The Kia Stonic is a highly rational and reliable choice in the crowded B-SUV segment. Focusing on the 1.6 CRDi diesel: It is an exceptionally durable engine capable of high mileages with minimal mechanical fuss, provided it is driven on highways regularly to keep the DPF and EGR clean. If your commute is strictly urban, the diesel will become a costly liability, and you should opt for the bulletproof 1.2/1.4 MPI or the punchier 1.0 T-GDI. While the Stonic lacks the plush ride and soft-touch plastics of some European rivals, its outstanding warranty, sharp looks, and dependable mechanicals make it a highly recommended used buy.