One problem related to gas recirculation valve (egr valve) has been reported for the 2007 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Kia Motor Optima based on all problems reported for the 2007 Optima.
I've seen in other forums about engine recalls. I was never notified and the engine in my car disintegrated. It was replaced with an engine from a wrecking yard. This should be covered by manufacturer. I had issues with the brake lines rusting out. This should not have happened either. Not being able to service the transmission and arguing with the dealership about this should be replaced by manufacturer!.