Which batch of Mistra vehicles experienced engine cylinder scoring?

[LaAlexandra]

Mistra engine cylinder scoring occurred in the 2014 model with 1.8L engine. Reasons: Engine overheating caused by cooling system leakage/water shortage without timely replenishment; Severe oil deficiency due to engine oil leakage or excessive consumption; Prolonged high-speed or overload operation leading to excessive temperature. Definition: Engine cylinder scoring refers to evident longitudinal mechanical scratches and abrasions on cylinder walls within piston ring movement range. In severe cases, adhesive wear occurs, causing difficult engine starting or spontaneous stalling. Cylinder scoring constitutes a major engine failure incident.