 Had to replace headlights frequently and out of nowhere it started clicking in the motor.We called the local Kia dealer in Lufkin and they told us that sometimes a lifter gets stuck and just to put in "SeaFoam" oil.We did and the sound just got louder, we called again, the car had only 73000 miles and they repeated that there was nothing to worry about and just to "rev" the motor and it would work its way loose.One week later the car was still clicking and we called again, the mechanic said we would have to just give the oil time to work. We did just what they said and the motor froze up.Then we found out they would not honor the warranty because we were not the original owners.