2011 KIA Optima Engine Problems
Owners have filed 256 complaints with NHTSA about engine problems on the 2011 KIA Optima, 43% of all complaints for this model year. Half of the reports with a mileage happened before 101,000 miles. The words owners use most often: “engine seized” (14% of reports).
- 256engine complaints
- 101,000median miles at failure
- 6mention a crash
- 3mention an injury
- 2related recalls
- $5,500typical repair cost reported by owners
- 48%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Engine seized: mentioned in 35 of 256 complaints (14%)
- Knocking noise: mentioned in 19 of 256 complaints (7%)
- Oil change: mentioned in 19 of 256 complaints (7%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical engine repair on the 2011 KIA Optima at $5,500, and half of them between $3,450 and $7,550.
Based on 15 NHTSA complaints about this problem alone that state a repair bill or quote (2015–2021), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do engine problems happen?
Based on 200 complaints that reported the odometer reading.
How serious are the reports?
Of 256 complaints, 6 mention a crash, 22 a fire, 3 an injury.
KIA Optima engine complaints by model year
| Model year | Engine complaints | Share of that year | Median miles |
|---|---|---|---|
| 2020 Optima | 102 | 68% | 103,593 |
| 2019 Optima | 92 | 43% | 65,000 |
| 2018 Optima | 131 | 56% | 69,000 |
| 2017 Optima | 164 | 64% | 72,000 |
| 2016 Optima | 426 | 56% | 88,000 |
| 2015 Optima | 622 | 62% | 87,992 |
| 2014 Optima | 284 | 48% | 85,000 |
| 2013 Optima | 613 | 44% | 99,062 |
| 2012 Optima | 398 | 43% | 100,000 |
| 2011 Optima | 256 | 43% | 101,000 |
| 2010 Optima | 9 | 12% | 76,500 |
| 2009 Optima | 14 | 12% | 70,000 |
| 2008 Optima | 19 | 13% | 96,000 |
| 2007 Optima | 16 | 10% | 99,560 |
| 2006 Optima | 7 | 5% | 105,735 |
| 2004 Optima | 3 | 1% | 89,400 |
| 2003 Optima | 2 | 1% | 60,000 |
| 2002 Optima | 4 | 4% | 118,049 |
| 2001 Optima | 2 | 1% | 105,000 |
When owners reported it
Related recalls (2)
Engine; fuel system, gasoline:delivery:hoses, lines/piping, and fittings
Problem: Kia Motors America (Kia) is recalling certain 2011-2017 Optima, 2012-2017 Sorento and 2011-2018 Sportage vehicles that previously received an engine replacement under recall number 17V-224, warranty, or the Knock Sensor Detection System (KSDS) Product Improvement Campaign. The high pressure fuel pipe that connects to the fuel pump outlet may have been damaged, misaligned or improperly torqued during the engine replacement procedure, possibly causing a fuel leak.
Risk: A fuel leak in the presence of an ignition source can increase the risk of a fire.
Fix: Kia has notified owners, and dealers will inspect and replace the fuel pipe, as necessary, free of charge. The recall began January 17, 2019. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC172.
Engine and engine cooling:engine
Problem: Kia Motor Company (Kia) is recalling certain 2011-2014 Optima, 2012-2014 Sorento and 2011-2013 Sportage vehicles. Machining errors during the engine manufacturing process may cause premature bearing wear within the engine.
Risk: Bearing wear may result in the engine seizing, increasing the risk of a crash.
Fix: Kia will notify owners, and dealers will inspect the engine assembly, and replace the engine if necessary, free of charge. The recall began June 20, 2017. Owners may contact Kia customer service at 1-800-333-4542. Kia's number for this recall is SC147.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
I own a 2011 Kia Optima, VIN [XXX]. My vehicle was taken to Rockwall Kia on August 25, 2026, for completion of NHTSA Safety Recall 23V-652 / Kia SC284TF involving the HECU fuse. The dealership replaced the HECU multi-fuse and label kit. Before the recall repair, the vehicle was operating normally…
I was having trouble with my left driver tire. 2 mechanics went to test drive the car to see what the problem was. As they were driving, the car died. They got it started but it ran horrible back to the garage. When they pulled in the driveway of the garage, the car started on fire. It was an…
The vehicle's engine had previously been replaced once under Kia's Theta II engine recall/warranty program approximately five years prior to this incident. On the date of failure, the replacement engine catastrophically failed while the vehicle was in operation, resulting in the engine developing a…
Frequently asked questions
Do all 2011 KIA Optimas have engine problems?
No. NHTSA has 256 owner complaints about engine for the 2011 KIA Optima (43% of the 594 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2011 KIA Optima engine?
Yes: 2 safety recalls list engine. Check your VIN on NHTSA.gov to see whether the fix was done on your car.
At what mileage do engine problems start?
The median reported mileage is 101,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix engine problems on the 2011 KIA Optima?
Owners report a typical cost of $5,500 (half paid between $3,450 and $7,550), from 15 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about engine problems on the 2011 KIA Optima?
The most frequent phrase is “engine seized”, in 35 of 256 complaints, followed by “knocking noise” (19).
Other 2011 KIA Optima problems
See all 2011 KIA Optima problems or engine problems across all Optima years.