2015 Kia Sorento · symptom sheet
Engine failure, knocking or rod bearing
- 209owner reports
- 88,000median miles
- $7,000median quote
- 2involved a crash
Newest report Jul 5, 2026 · checked Oct 2, 2026
363 of the 738 complaints on this car are about the engine. 209 of those describe engine failure, which makes it the most reported problem on the 2015 Sorento.
Narrower sheets: Engine knocking or ticking (85 reports) · Engine seized (40 reports)
Tick what matches of 209 reports
Engine failure on other Sorento years
Report counts are for each model year on its own, so a newer car has had less time to collect them. Model years with too few reports of it for a sheet: 2021, 2022, 2023, 2024, 2025.
What this problem usually is
These are the reports nobody wants to file. The engine started knocking or ticking, the oil light came on, and then it seized or had to be replaced. Some owners had the replacement covered under warranty or an extension, and plenty were told they'd pay. Several narrower sheets split this group into knocking, seized engines and rod bearing failure.
What got replaced
Owners who name the part that was replaced mention the engine (198 reports), the timing chain (4 reports) and the short block or long block (3 reports).
Recalls and investigations
No recall on the engine covers the 2015 model year as of Oct 2, 2026.
NHTSA investigations into the engine on the Sorento
Loss of motive power. Closed jul 23, 2024.
Loss of motive power. Closed dec 12, 2023.
Engine fires. Closed feb 5, 2024, led to recall 23V-877.
Engine oil pressure switch leak. Closed jun 26, 2023.
Scope and timeliness. Closed dec 22, 2021, led to recall 17V-224.
What owners paid
36 of the 209 reports quote a price. Each dot is one quote. The middle half runs $5,500 to $9,000.
When it happens
The middle half of failures fell between 68,000 and 111,000 miles, from the 135 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 28 service bulletins or notices for the 2015 Kia Sorento that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
ENGINE SUB ASSEMBLY INSPECTION/REPLACEMENT (WTY039 REVISION 7) - This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY039) to diagnose a coolant leak from the cylinder head gasket area and, if necessary, replace the engine sub assembly on 2014-2015 MY Sorento, 2014-2017 MY ...
ENGINE SUB ASSEMBLY INSPECTION/REPLACEMENT (WTY039 REVISION 6) This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY039) to diagnose a coolant leak from the cylinder head gasket area and, if necessary, replace the engine sub assembly on 2014-2015 MY Sorento, 2014-2017 MY Cadenza, and ...
WARRANTY EXTENSION CAMPAIGN (WTY039) This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY039) to diagnose a coolant leak from the cylinder head gasket area and, if necessary, replace the engine sub assembly on 2014-2015 MY Sorento, 2014-2017 MY Cadenza, and ...
ENGINE SUB ASSEMBLY: INSPECTION/REPLACEMENT (WTY039) This bulletin provides information associated with the ‘Warranty Extension Program’ (WTY039) to diagnose a coolant leak from the cylinder head gasket area and, if necessary, replace the engine sub assembly on 2014-2015 MY Sorento, 2014-2017 MY Cadenza, and ...
24 more on the 2015 Kia Sorento page.
What owners wrote
“Coolant and oil are mixing. Coolant was over flowing from the reservoir. High oil consumption. Oil was just topped off about 1000 miles ago and is very low on the dipstick now. Coolant mixing with oil seems like the issue the 2016-17 3.3 V6s are experiencing with the stripped head bolts. HEAD GASKET/ENGINE FAILURE is imminent. Extend the warranty to all 3.3 liters not just 2016 and 2017 (15 years/180,000).”
Filed Jan 22, 2025 · 1,000 miles
“We were driving our car and it all of a sudden just stopped working. We luckily were able to pull over before it stopped completely, no noise, jerk motion or anything the engine just stopped. We had it towed to a mechanic who said our engine blew. It only had 140,000 miles on it but the repair/replacement we were quoted would have cost us more than the vehicle was even worth so we ended up having the car junked.”
Filed May 13, 2024 · 140,000 miles
“The engine quit/shut down while traveling at 65mph on freeway. We replace engine, now 50,000 miles later we are replacing the connector rod bearings.”
Filed Nov 2, 2023 · 50,000 miles
“I was driving and engine started to loose power and knocking. Pulled over and discovered that no oil was in the engine. Oil has always been changed every 4000 miles. No oil meter warning displayed on the dashboard.”
Filed May 6, 2022 · 4,000 miles
Should you keep driving it?
This page can't tell you that. 2 of 209 reports involved a crash and 2 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Taking it to a shop? How to describe this problem so it gets found
Other problems on this car
- Engine stalls or loses power while driving 138 reports
- Paint peels or body rusts 88 reports
- Headlights too dim or fail 81 reports
- Check engine light or misfire 78 reports
- Brakes grind, pulse or wear early 37 reports
- Engine rattles or ticks 36 reports
- Engine overheats or leaks coolant 35 reports
- Windshield cracks or distorts 31 reports
- Burns oil or oil level rises 30 reports
- Airbag warning light or recall 27 reports