The idle-stop function would frequently malfunction. I would be at a stop, which would trigger the idle-stop function and the car would turn off, but when I released my foot off the break in preparation for needing to start moving, the car would stall and shut completely off. There was about a five second delay before I could get the car to turn back on and start moving, which was very scary with …
2025 acura MDX engine problems
moderate 8 complaints filed with NHTSA · avg repair $3,100
Complaints
8
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 3 most recent
When the automatic engine start/stop is enabled, my car will shut down. To the point where it has to be completely off, then restarted. This has happened twice, the first time was on 9/28/2025 and the second time was on 10/29/2025. We were in traffic, and the car behind me, almost ran into me, as I stalled. the lighted symbols on the dashboard were illuminated during this experience, but I am not …
Idle stop causing engine to shut down. This has happened three times! It’s very dangerous.
Common questions
How serious is the engine problem on the 2025 acura MDX?
It's a documented issue but not catastrophic. 8 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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