WE PURCHASED A 2015 MAZDA CX9 WITH 30,000 MILES THREE YEARS AGO. AT THE START OF THE MONTH, THE CAR SUDDENLY OVERHEATED WHILE DRIVING AND THE ENGINE FAILED! THE MECHANIC SAID THE WATER PUMP FAILED, THE COOLANT MIXED WITH THE ENGINE OIL AND THE ENGINE WAS DONE. $$7944.41 ADDITIONALLY, THE OVERHEATED ENGINE CAUSED THE TRANSMISSION FLUID TO BURN TO A POINT THE THE TRANSMISSION FAILED. $$4864. THIS…
2015 mazda CX-9 engine problems
moderate 12 complaints filed with NHTSA · avg repair $3,100
Complaints
12
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 6 most recent
The contact owns a 2015 Mazda CX-9. The contact stated while driving 40 MPH, the temperature gauge began to accelerate rapidly. The contact stated no warning light was illuminated. The contact was able to park on the side of the road for approximately 3 hours, until the engine cooled down. The contact stated she added water and continued driving to her destination. The contact took the vehicle to …
CODE P0016 CAME UP ONE DAY PRIOR TO ENGINE FAILURE. 30 MILES AFTER CHECK ENGINE LINE CAME UP LOSS POWER. UPON INSPECTION WATER PUMP FAILURE AT 85000 MILES. ENGINE MOST LIKELY TOASTED
The issue is with the design of the Water Pump on this vehicle. From my understanding, this is a common issue with the 2015 Mazda CX-9. What happens is once the water pump starts to fail due to the design, the vehicle starts to stall randomly which poses a safety issue to my family when driving. The vehicle was inspected by a dealership in the area and was ultimately fixed. I was informed that…
2015 Mazda CX-9 with 93k miles: while driving in traffic, check engine light suddenly came on, the car began to shudder as I heard a loud knocking noises coming from under the hood, and then a sudden loss of power while trying to navigate through a busy intersection while trying to make a left turn left myself in danger of almost being struck from the vehicle behind me and an oncoming vehicle fro…
I am attaching documents to report 11461223 submitted April 18,2022
Common questions
How serious is the engine problem on the 2015 mazda CX-9?
It's a documented issue but not catastrophic. 12 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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