Diagsheet

2017 Acura MDX · symptom sheet

Engine knocking or ticking

  • 25owner reports
  • 110,000median miles
  • 0involved a crash

Newest report Apr 21, 2026 · checked Oct 2, 2026

25 of the 52 reports of engine failure on the 2017 MDX describe engine knock.

Part of Engine failure, knocking or rod bearing (52 reports) · also: rod bearing failure

1 recall on this systemcovering the 2017 model year
No crash reportedin 25 reports
NHTSA investigations3 covering the 2017

Tick what matches of 25 reports

25
6
1

Engine knock on other MDX 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: 2014, 2018, 2019, 2020, 2022, 2025.

What got replaced

Owners who name the part that was replaced mention the rod bearing (15 reports).

Recalls and investigations

One recall on the engine covers the 2017 model year. A recall on the same system isn't always the same failure, so read the defect text.

23V-751Nov 13, 2023
Engine And Engine Cooling:Engine:Hard Parts Internal/Mechanical

Due to a manufacturing error, the connecting rod bearing in the engine may wear and seize, damaging the engine.

Risk, remedy and owner complaints on recall 23V-751

All 8 recalls on the 2017 Acura MDX, with the owner complaints on each recalled system

NHTSA investigations into the engine on the MDX

PE25-008opened Aug 20, 2025
Engine · model years 2016 to 2020

Engine failure. Open.

EA25-004opened Mar 26, 2025
Engine · model years 2016 to 2025

No restart after auto start/stop engages. Open.

RQ24-013opened Nov 8, 2024
Engine · model years 2016 to 2020

Engine failure. Closed aug 20, 2025.

When it happens

The middle half of failures fell between 67,589 and 133,000 miles, from the 10 reports that gave a mileage.

Complaints by the year NHTSA received them: 2023: 2, 2024: 4, 2025: 15, 2026: 42'234'2415'254'26

What owners wrote

“The main issue is engine knocking and ticking also winding noise. There has been an issue with electrical with rear passengers getting burnt due to heat coming out of rear when rear system is off.”

Filed Apr 21, 2026

Should you keep driving it?

This page can't tell you that. 0 of 25 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