2019 Infiniti QX50 · symptom sheet
Engine failure, knocking or rod bearing
- 39owner reports
- 94,000median miles
- $7,560median quote
- 0involved a crash
Newest report Sep 25, 2026 · checked Oct 2, 2026
85 of the 140 complaints on this car are about the engine. 39 of those describe engine failure, which makes it the most reported problem on the 2019 QX50.
Tick what matches of 39 reports
Engine failure on other QX50 years
No other QX50 model year has enough reports of engine failure for a sheet of its own. See every QX50 year.
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 (39 reports) and the turbo (5 reports).
Recalls and investigations
One recall on the engine covers the 2019 model year. A recall on the same system isn't always the same failure, so read the defect text.
The engine bearings may have manufacturing defects that can lead to engine failure.
All 3 recalls on the 2019 Infiniti QX50, with the owner complaints on each recalled system
NHTSA investigations into the engine on the QX50
Complete loss of motive power due to engine failure. Closed jul 18, 2025, led to recall 25V-437.
What owners paid
7 of the 39 reports quote a price. Each dot is one quote. The middle half runs $1,700 to $15,000.
When it happens
The middle half of failures fell between 67,000 and 103,000 miles, from the 21 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 1 service bulletin or notice for the 2019 Infiniti QX50 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.
2019 QX50; SPARK KNOCK IF YOU CONFIRM: A spark knock or knocking type noise coming from the engine under a low RPM/high load driving pattern (alternatively, ?at low speeds?) AND There are no DTCs stored in the ECM and/or TCM. ACTION 1.
What owners wrote
“The issue on the 2019 Infiniti QX50 it's not the motor that they had the recall on it's the VCR actuator it goes bad causes the bracket that's connected to rub against the side of the engine block causes it to have metal shavings and the car to go in limp mode and can cause an accident it's a common issue just put one in and already bad not even a year The original one made it to $47,000 mi before going bad”
Filed Jun 19, 2026 · 47,000 miles
“Hearing knocking from the engine and Infiniti of Honolulu has refused to schedule an inspection for over 6 months”
Filed Feb 1, 2026
“Engine seized on road due to bearing debris (confirmed by dealer photos), covered by recall 25V-437. Infiniti corporate denied repair, falsely citing âmaintenanceâ despite negligible sludge. No loaner provided for two weeks, stranding me. Laws Violated: 49 U.S.C. § 30120 (free recall remedy), 49 CFR § 573.6 (interim support during delays).”
Filed Oct 15, 2025
“Engine made a pop sound while getting onto the freeway. It started to slow down and then I had to pull over and stop. Took to the mechanic and he explained there was metal shavings in engine. I needed to replace the whole engine.”
Filed Jun 2, 2025
Should you keep driving it?
This page can't tell you that. 0 of 39 reports involved a crash. 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 Paid for this repair before a recall covered it? How recall reimbursement works
Other problems on this car
- Engine stalls or loses power while driving 26 reports