Kia Rio IV (YB) (2017 – 2025)

Reliability score : 8.6/10

The Kia Rio IV (Generation YB) is a mature, practical, and highly rational B-segment subcompact hatchback. Introduced in 2017, it marked a significant step up in interior quality, chassis rigidity, and technology compared to its predecessor. A mid-cycle facelift in 2020 brought mild-hybrid (MHEV) technology and updated infotainment. While the market trend heavily favored small turbocharged petrol engines (1.0 T-GDI), Kia initially offered a highly efficient 1.4 CRDi diesel engine. This diesel variant is renowned for its robustness and exceptional fuel economy, making it a hidden gem for high-mileage drivers. However, due to stringent Euro 6d-Temp emissions regulations and declining demand for small diesels, the 1.4 CRDi was quietly phased out in Europe around 2019/2020. Globally, the Rio Y

✅ Strengths

1.4 CRDi diesel is exceptionally frugal and mechanically bulletproof
Class-leading 7-year / 150,000 km warranty (transferable)
Spacious interior and good boot capacity (325 liters) for the B-segment
Ergonomic and user-friendly dashboard with physical climate controls
Naturally aspirated MPI engines (1.2, 1.4) are virtually indestructible

⚠️ Weaknesses

1.4 CRDi was discontinued early (2019/2020), making low-mileage examples hard to find
7-DCT automatic transmission is jerky at low speeds and prone to premature clutch wear in heavy traffic
Ride quality is noticeably firm, especially on 17-inch alloy wheels
Exterior paint is thin and highly susceptible to stone chips and scratches
Interior plastics are hard and scratch easily

🎯 Verdict

The Kia Rio IV (YB) is an incredibly sensible purchase. If you are specifically looking for the 1.4 CRDi diesel, you are targeting one of the most reliable and economical small diesels of its era. It is highly recommended for drivers with long commutes. However, because it was discontinued early in the production run, finding a pristine, low-mileage example requires patience. Buying Advice: - Buy the 1.4 CRDi if you drive over 20,000 km/year and do regular highway driving. - Buy the 1.2 or 1.4 MPI for ultimate peace of mind and low running costs in the city. - Negotiate or be cautious with the 1.0 T-GDI paired with the 7-DCT if the car has been used exclusively in heavy city traffic, as clutch replacement is imminent and costly.