2018 Kia Rio engine problems
15 owner complaints filed with NHTSA name the engine on the 2018 Kia Rio — 54% of all complaints for this model year.
What owners report
“The Components that have malfunctioned are the airbags, exaust system, electrical systems, sensors, gaskets, and a few other things. We had 5 failed clockspring repairs. The first (3?) under warranty, we paid for another when they said it was our fault, then that mechanic said that it needed to go…”
filed Aug 5, 2026
“Vehicle has excessive oil consumption defect acknowledged in Kia TSB ENG222. Repeated catalytic converter failures indicate potential overheating risk similar to 2019 Gamma engine recall for fire hazard. Engine burning oil creates risk of critically low oil levels leading to engine failure/stalling…”
filed May 23, 2026
“The first problem part is the airbag. The clockspring was fixed twice under warranty. Then the dealership said they wont keep doing it and blamed me wrongly. I had a private mechanic repair the same part twice due to the code it was giving but it turns out thats not what's wrong with it. The entire airbag and…”
filed Mar 26, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar…
TSB_ENG222_R8 · Service Bulletin/Repair Instructions · issued Apr 3, 2025TECHNICAL SERVICE BULLETIN: EXCESSIVE OIL CONSUMPTION NU/GAMMA/THETA/KAPPA ENGINES - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar…
TSB_ENG222_R7 · Service Bulletin/Repair Instructions · issued Feb 28, 2025
Engine problems in other Rio years
| Year | Reports | Share |
|---|---|---|
| 2020 Rio | 5 | 19% |
| 2019 Rio | 6 | 29% |
| 2017 Rio | 11 | 35% |
| 2016 Rio | 38 | 49% |
| 2015 Rio | 23 | 44% |
| 2014 Rio | 24 | 47% |
| 2013 Rio | 53 | 35% |
| 2012 Rio | 23 | 44% |
| 2011 Rio | 7 | 29% |
| 2010 Rio | 4 | 15% |
| 2009 Rio | 7 | 18% |
| 2008 Rio | 3 | 7% |
Other reported problem areas on the 2018 Kia Rio
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.