1.5 K15B (Jimny) engine: faults and reliability

The K15B is the largest of Suzuki's K-series engines: 1,462 cc, four cylinders, 16 valves, double overhead camshafts with variable valve timing and a timing chain. According to Wikipedia it produces between 102 and 106 hp and between 130 and 138 Nm depending on the market. It has been available since 2018 in the Jimny Sierra and in other Suzuki models built in India (Ertiga, Ciaz), which are not sold in Europe.^[4][5]

In Europe the fourth-generation Jimny (JB74) was sold from autumn 2018 with this single engine, 102 hp and 138 Nm, with a five-speed manual or four-speed automatic gearbox. Emissions rules forced the suspension of sales as a passenger car in 2020; the model returned in 2021 as a light commercial vehicle and, according to Spanish Wikipedia, was withdrawn from the market in 2025. The three-door Jimny is built in Japan.^[6][7]

The press describes it as simple and inexpensive to maintain, with no documented weak points of its own, although none of the sources consulted provides failure statistics from a large sample. The main criticism is high real-world consumption (7 to 9 l/100 km according to one Spanish source), which that source attributes to aerodynamics and off-road tyres, not to a defect.^[1][3]