2018 KIA Sorento Engine Problems

Source: NHTSA · Updated Oct 6, 2026 · 107 complaints analyzed

Owners have filed 107 complaints with NHTSA about engine problems on the 2018 KIA Sorento, 42% of all complaints for this model year. Half of the reports with a mileage happened before 72,000 miles. The words owners use most often: “oil consumption” (14% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Oil consumption: mentioned in 15 of 107 complaints (14%)
  • Knock sensor: mentioned in 6 of 107 complaints (6%)
  • Knocking sound: mentioned in 6 of 107 complaints (6%)
  • Class action: mentioned in 6 of 107 complaints (6%)

At what mileage do engine problems happen?

Based on 25 complaints that reported the odometer reading.

Under 10k miles3 · 12%
10k–25k miles4 · 16%
25k–50k miles3 · 12%
50k–75k miles3 · 12%
75k–100k miles7 · 28%
100k–150k miles5 · 20%
150k+ miles0 · 0%

How serious are the reports?

Of 107 complaints, 7 a fire, 1 an injury.

KIA Sorento engine complaints by model year

Peak: 2016, with 695 complaints
2003: 4320032004: 462005: 6320052006: 672007: 720072008: 352009: 420092010: 12011: 28420112012: 4612013: 49620132014: 3882015: 36220152016: 6956952017: 38720172018: 1072019: 15820192020: 662021: 6820212022: 522023: 3120232024: 52025: 1920252026: 1

n = 3,846 complaints · Source: NHTSA

Model yearEngine complaintsShare of that yearMedian miles
2026 Sorento117%7,000
2025 Sorento1925%4,000
2024 Sorento512%31,000
2023 Sorento3125%1,600
2022 Sorento5227%50,000
2021 Sorento6827%33,000
2020 Sorento6648%61,500
2019 Sorento15837%40,000
2018 Sorento10742%72,000
2017 Sorento38748%64,000
2016 Sorento69555%83,500
2015 Sorento36248%87,560
2014 Sorento38839%100,000
2013 Sorento49651%89,691
2012 Sorento46152%99,612
2011 Sorento28419%103,000
2010 Sorento133%52,000
2009 Sorento47%140,000
2008 Sorento3516%75,000
2007 Sorento75%133,000
2006 Sorento6728%92,700
2005 Sorento6321%101,000
2004 Sorento4621%112,000
2003 Sorento4314%118,000

When owners reported it

Peak: 2024, with 26 complaints
2018: 1201812019: 5201952020: 6202062021: 2202122022: 122022122023: 132023132024: 262024262025: 252025252026: 17202617

n = 107 complaints · Source: NHTSA

Related recalls (0)

No safety recall lists engine for the 2018 KIA Sorento. A pattern of complaints does not always lead to a recall.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

My 2018 Sorento is consuming oil excessively. I’m having to add oil between changes, and I’m now experiencing reduced acceleration under load. I have been told by a few different parties that this has become a common problem with Kia’s. I want an oil-consumption test performed and I want the…

Received Oct 6, 2026 · NHTSA complaint 11769459

Complete engine failure inspected by Westgate Kia Service Dept, Wake Forest, NC Service manager confirmed that known issue and recall in effect for 2018 Kia Sorrento same issue but because manufactures parts are only covered when made in certain locations. mine not covered. He did agree it was…

Received Sep 18, 2026 · NHTSA complaint 11765284

Vehicle: 2018 Kia Sorento VIN: [XXX] Kia Corporate Case #: XXX My 2018 Kia Sorento experienced a catastrophic engine failure (“holes in the block”) while under warranty. The vehicle lost power, emitted heavy smoke, and became completely inoperable. Kia America has refused to repair the engine…

Received Sep 15, 2026 · NHTSA complaint 11764549
KIA Sorento
Kia Sorento 2.2 CRDi DCT AWD Platinum (IV, Facelift). Representative photo; appearance varies by model year. Photo: © M 93, CC BY-SA 3.0 de, via Wikimedia Commons.

Frequently asked questions

Do all 2018 KIA Sorentos have engine problems?

No. NHTSA has 107 owner complaints about engine for the 2018 KIA Sorento (42% of the 255 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 2018 KIA Sorento engine?

No recall currently lists engine for this vehicle.

At what mileage do engine problems start?

The median reported mileage is 72,000 miles: half of the reports with a mileage came before that.

What do owners say about engine problems on the 2018 KIA Sorento?

The most frequent phrase is “oil consumption”, in 15 of 107 complaints, followed by “knock sensor” (6).

See all 2018 KIA Sorento problems or engine problems across all Sorento years.