2011 Kia Optima Engine cooling Problems
- Complaints
- 8about this part
- Share
- 1%of 594 total for the year
- Median mileage
- 97,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the engine cooling of the 2011 Kia Optima, 1% of the 594 complaints for this model year. Where a mileage was given, the median is 97,000 miles. 1 recall campaign on record is filed under a similar system.
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.
“The contact owns a 2011 Kia Optima. The contact stated that upon starting the vehicle, there was an abnormal rattling sound coming from the engine. There was no warning light illuminated. The vehicle was taken to an independent mechanic who noticed that the engine oil level was abnormally low, and that there were no visible signs of an oil leakage. The oil level was topped off; however, within 3 weeks the oil level was abnormally low again. …”
NHTSA complaint #11649717, filed 2025-03, 68,500 miles“The contact owns a 2011 Kia Optima. The contact stated that while a family member was driving and exiting a parking lot, the vehicle turned off, causing the vehicle to lose power. The contact stated that there was a burning odor inside the cabin of the vehicle with an audible clicking sound coming from the starter motor. The vehicle was towed to a local authorized dealer. The contact referenced NHTSA Campaign Number: 17V224000 (Engine and Engine Cooling) and Kia Warranty Bulletin 2017-09.R4 as the possible causes for the failure. …”
NHTSA complaint #11769738, filed 2026-10, 77,500 miles“The contact owns a 2011 Kia Optima. The contact stated that upon entering an interstate highway at 65 MPH, the vehicle ceased with the battery and oil warning lights illuminated on the instrument panel. As the vehicle shut-off, the contact was able to coast the vehicle to the shoulder of the highway. After the vehicle failed to start up after multiple attempts, the contact had the vehicle towed to an independent mechanic where the vehicle was diagnosed with engine failure. …”
NHTSA complaint #11422734, filed 2021-06, 116,000 miles“The contact owns a 2011 Kia Optima. The contact stated while driving approximately 25 MPH, the vehicle was consuming an excessive amount of engine oil. The contact was consistently topping off the engine oil. There were no warning lights illuminated. The contact stated that there was no smoke or abnormal odor coming from the vehicle. The vehicle was diagnosed with excessive oil consumption; however, the vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 11,000.”
NHTSA complaint #11472518, filed 2022-07, 11,000 miles“The contact owns a 2011 Kia Optima. The contact stated that the check engine warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed with metal shavings in the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 17V224000 (Engine and Engine Cooling) however, the VIN was not included. The manufacturer was informed of failure but offered no assistance. The failure mileage was approximately 142,000.”
NHTSA complaint #11449293, filed 2022-01, 142,000 milesRelated recalls
- 17V224000Mar 31, 2017Kia Motor Company (Kia) is recalling certain 2011-2014 Optima, 2012-2014 Sorento and 2011-2013 Sportage vehicles. Machining errors during the engine…Covers: Kia Optima 2011–2014, Sportage 2011–2013, Sorento 2012–2014
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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 2011 Kia Optima
256 complaintsSteering
100 complaintsExterior lighting
88 complaintsElectrical system
63 complaintsBrakes
47 complaintsOther or unknown
41 complaintsAir bags
31 complaintsFuel system
26 complaintsTransmission and drivetrain
25 complaintsBody and structure
21 complaintsVehicle speed control
19 complaintsSuspension
18 complaints
← All problems reported for the 2011 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