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EnginePart report

2018 Kia Cadenza Engine Problems

Complaints
5about this part
Share
71%of 7 total for the year
Median mileage
9,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine of the 2018 Kia Cadenza, 71% of the 7 complaints for this model year. Where a mileage was given, the median is 9,500 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 purchased a new 2018 Kia Cadenza with 11 miles on it. I have had the car less than a year and it randomly stalls while in drive mode in motion and sometimes while sitting idle. It has stalled on the freeway, neighborhood streets, drive-way and on feeder roads. The car has been in and out of the dealership at least 5 times. Kia motors cannot figure out what's wrong with the vehicle. They placed a tracker in the vehicle and determined the crank sensor was malfunctioning. They replaced the crank sensor, I picked the vehicle up and less than 24 hours later the car stalled again. …”

NHTSA complaint #11208151, filed 2019-05, 9,500 miles

“Complete engine failure due to rods and bearings (same as all other Kia engine recalls currently active). Ironically my car wasn’t included in the recall. Also I’ve noticed that Hyundai has extended the warranty for this same engine in the 2018 Santa Fe basically acknowledging it has a problem but didn’t include the 2018 Kia cadenza which has the EXACT SAME ENGINE. Now I have engine failure prematurely and they are trying to deny repairs. …”

NHTSA complaint #11700022, filed 2025-11

“No prior issues/light on dashboard as the car was just serviced for coolant hose replacement. On my way home from work, the car stalled and loss power at the light. The signs were giving engine failure due to losing power then a clicking/ticking noise. After pulling over and giving the car a break I tried to restart it, at that point the noise had change from the clicking to a weird knocking noise. I had the car towed to my trusted mechanic shop. He advised me that the engine indeed did fail and that it would need to be replaced. …”

NHTSA complaint #11699682, filed 2025-11

“Failure of Oil Pressure Sensor resulting in oil leaking into wiring harness, this is the same problem with 3.3L engines in other models that KIA has extended coverage. I contacted KIA Customer Care and was told they tracked VIN and not enough Cadenzas had reported the same repair. If the problem is with the engine sensor then it should apply regardless of vehicle it was installed.”

NHTSA complaint #11640601, filed 2025-02

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2019240%
2018571%
20171236%
2016429%
20151327%
20142825%

Other parts of the 2018 Kia Cadenza

Other or unknown
2 complaints
Air bags
1 complaints

← All problems reported for the 2018 Kia Cadenza

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