One problem related to vehicle overheat has been reported for the 2013 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Kia Motor Optima based on all problems reported for the 2013 Optima.
Turner kia diagnosis my vehicle of overheating condition revealed combustion gasses getting into coolant. Internal issue allowing combustion pressure to get into cooling system which is hampering cooling efficiency as well as causing areaction off coolant. When I drove the car half way on the highway it started to smoke after I just got it back from turner kia after fixing what they said was the problem after that I took it back to turner kia and they diagnosis it as needing a new engine.