2007 Kia Optima Engine cooling Problems
- Complaints
- 4about this part
- Share
- 2%of 167 total for the year
- Median mileage
- 74,027miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2007 Kia Optima, 2% of the 167 complaints for this model year. Where a mileage was given, the median is 74,027 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving to work and my drivers side airbag came on. A few months prior, we had to replace the o2 sensor because the check engine light was on. Now on the second day with the airbag light on, the check engine light came back on! Is it bad wiring, will my airbag not work?”
NHTSA complaint #10935925, filed 2016-12, 79,720 miles“The contact owns a 2007 Kia Optima. The contact stated that while driving approximately 45 MPH, the vehicle stalled. The contact waited a few moments and was able to restart the vehicle. The failure occurred intermittently. The vehicle was taken to an authorized dealer several times but they could not find the cause of the failure nor could they duplicate it. The contact called the manufacturer and was advised to her to have the failure diagnosed by the dealer. The vehicle was not repaired. The current mileage was approximately 70,000. The failure mileage was 3,093. …”
NHTSA complaint #10393818, filed 2011-03, 3,093 miles“2007 Kia Optima with several safety issues. Consumer states that the transmission was replaced in february 2008, 5 weeks after the car was purchased. In april mechanic informed consumer that the #1 engine bracket bolt was missing. The consumer stated the TPMS light illuminated occasionally.”
NHTSA complaint #10233969, filed 2008-07Related service bulletins
- 10133170Mar 2, 2018PITSTOP - ENGINE COMPONENT RE-USE GUIDELINES - In general, parts and components removed during engine repairs should be considered serviceable, and should be thoroughly cleaned…
- 10033464Nov 1, 2009Kia: ecm upgrade with tp sensor replacement-mil on with dtc p2135/p0638. Information related to ecm software and tp sensor upgrade on some vehicles with 2.7l engines which may…
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 8 | 5% |
| 2019 | 3 | 1% |
| 2018 | 14 | 6% |
| 2017 | 8 | 3% |
| 2016 | 24 | 3% |
| 2015 | 31 | 3% |
| 2014 | 16 | 3% |
| 2013 | 42 | 3% |
| 2012 | 20 | 2% |
| 2011 | 8 | 1% |
| 2010 | 2 | 3% |
| 2009 | 2 | 2% |
| 2008 | 5 | 3% |
| 2007 | 4 | 2% |
| 2006 | 9 | 6% |
| 2005 | 6 | 4% |
| 2004 | 11 | 5% |
| 2003 | 7 | 5% |
| 2002 | 7 | 7% |
| 2001 | 24 | 17% |
Other parts of the 2007 Kia Optima
65 complaintsVisibility (wipers, defrost, mirrors)
33 complaintsExterior lighting
27 complaintsEngine
16 complaintsElectrical system
14 complaintsTransmission and drivetrain
13 complaintsBrakes
8 complaintsVehicle speed control
5 complaintsEquipment
4 complaintsOther or unknown
4 complaintsBody and structure
4 complaintsFuel system
3 complaints
← All problems reported for the 2007 Kia Optima
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology