Kia Australia has issued a recall for 4963 examples of its previous-generation 2011-2014 'TF' Optima sedan, and 16 units of its 2013 'XM' Sorento SUV, over concerns the 2.4-litre 'Theta' petrol engine could suddenly stall.
The Korean manufacturer reports a manufacturing fault could cause premature bearing wear within the engine. A worn connecting rod wearing will produce a cyclic clicking noise, and may also result in the illumination of the engine warning light and/or oil pressure warning light in the driver's instrument cluster.
If the warnings are ignored, the bearing may fail and the vehicle could stall when in use, posing an accident hazard.
A VIN list for the affected vehicles can be viewed here.
Additionally, affected owners will be offered a loan vehicle for however long it takes for their vehicle to be repaired.
This recall from Kia comes just after parent company Hyundai issued a recall for the related i45 sedan and Santa Fe SUV fitted with the 2.4-litre petrol engine over concerns contaminants from the manufacturing process could cause the engine to stall.