# 2013 Kia Optima O2 sensor estimate too high? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** optima, kia\ **Created:** [October 15, 2018, 9:53pm UTC](https://community.cartalk.com/t/2013-kia-optima-o2-sensor-estimate-too-high/126835 "2018-10-15T21:53:56Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![DonThomas](https://avatars.discourse-cdn.com/v4/letter/d/dbc845/32.png) [@DonThomas](https://community.cartalk.com/u/DonThomas)\ **Post date:** [October 15, 2018, 9:53pm UTC](https://community.cartalk.com/t/2013-kia-optima-o2-sensor-estimate-too-high/126835/1 "2018-10-15T21:53:56Z")
Tnanns Kia says it will cost about 380 to replace my O2 sensor isn’t that a bit much? I recently spent 480 to replace my transmission sensor like 3 weeks ago why are all these sensors going out on my Kia? My car only has 80,000 miles. ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [October 15, 2018, 10:44pm UTC](https://community.cartalk.com/t/2013-kia-optima-o2-sensor-estimate-too-high/126835/2 "2018-10-15T22:44:14Z")
Probably about the right cost. You can always shop around, you don’t have to use the Kia dealership. Stuff breaks, 80k is a bit early but stuff does just break. ---
**Author:** ![kurtwm1](https://avatars.discourse-cdn.com/v4/letter/k/13edae/32.png) [@kurtwm1](https://community.cartalk.com/u/kurtwm1)\ **Post date:** [October 16, 2018, 3:57am UTC](https://community.cartalk.com/t/2013-kia-optima-o2-sensor-estimate-too-high/126835/3 "2018-10-16T03:57:44Z")
The cost sound about right to me. O2 sensors go for around $50-100 a piece. Take an hour to install them and it comes up to around $350. I would ask Kia if they guarantee that this will fix your problem. Replacing the O2 sensors does not guarantee a fix if this is done in response of an engine error code.