Business ProfileforExecutive Kia

My 2017 KIA ******** was having problems. I called Executive KIA *********** ** and was told by the service dept they had openings. Car brought in 8/24/22. We do not live in **, but my wife was traveling for work. I stressed the need for the car to be repaired asap. My car sat for weeks not evaluated. Once evaluated they believed it was engine related but were unsure, so said it needed further diagnostics to understand the problem & to complete the extended warranty claim. Due to the time that had passed, we asked for the car back, but the car was in pieces, so we had no choice but to let KIA fix it & rent a car at my cost. After taking the engine apart, KIA determined it was a sticky valve caused by the carbon buildup (a known issue). They cleaned the engine but had to replace the broken engine parts they created during the so-called diagnostic (aka taking the engine apart). The Extended Warranty Co (EWC) was a huge disappointment. They pushed back on the claim from the beginning and denied it because there were no defective parts and therefore, nothing to warranty. My car was returned on 10/10/2022, ~7 weeks later. The total cost was $4,246.53. We are holding KIA Corporate & Executive KIA accountable for the failure to properly diagnosing the car which cost us >$4K; for failure to timely diagnose the problem which caused extreme stress & inconvenience while traveling; for taking apart the engine when it could have been fixed using a much cheaper non-invasive method like a simple cleaning; for misleading us with a car warranty & extended warranty that could not be used; for not recognizing & addressing a known defect of this car; and for not being forthcoming or providing good customer service during the process. To rectify this issue, we feel strongly that KIA should refund us the $4,246.53. We would prefer to handle this through the BBB process but, if needed, we will pursue further action via the legal process. Review attached document for detail information.