NHTSA Complaint #11477027 — 2016 MAZDA CX-9

ENGINE issue reported to NHTSA

Check any vehicle history by VIN - Free vehicle history report

Complaint Details

ODI Number	11477027
Vehicle	2016 MAZDA CX-9
Component	ENGINE
Date of Incident	July 28, 2022
Date Filed	August 1, 2022
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	TX

Consumer Description

2016 cx9, after reviewing online. Known issue with coolent and engine cylinder. Water coolent leak to engine head. Dealer asking 75k to replace engine. Mazda refused to acknowledge the known issue.

Related Complaints for the 2016 MAZDA CX-9

Other ENGINE Complaints

#11706610 — December 22, 2025 — I own a 2016 Mazda CX9 Touring FWD (180k miles). Today my car was diagnosed with cracked cylinder head, resulting in ...

#11697196 — November 3, 2025 — In June of 2022 I started having a strong antifreeze/engine coolant smell inside the cab of my vehicle and also outsi...

#11695620 — October 25, 2025 — Cylinder head crack. Combustion gasses leaking into coolant causing overheat. Combustion gasses bleeding into oil cau...

#11632664 — December 27, 2024 — Engine failure with crack in the engine after a loss of coolant fluid.

#11626600 — November 21, 2024 — Head gasket leaking and caused major engine issue at 89,000 miles. Mazda has known of this issue, but refuses to reca...

Recent Complaints for the 2016 MAZDA CX-9

#11687565 — ENGINE AND ENGINE COOLING — September 16, 2025 — The contact owns a 2016 Mazda CX-9. The contact stated that while driving approximately 45-50 MPH, the vehicle sudden...

#11656449 — ELECTRICAL SYSTEM — April 23, 2025 — Smart City Break Malfunction warning light appears while driving. Simultaneously the tire pressure warning appears. A...

#11656449 — FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING — April 23, 2025 — Smart City Break Malfunction warning light appears while driving. Simultaneously the tire pressure warning appears. A...

#11621833 — ELECTRICAL SYSTEM — October 24, 2024 — Vehicle failed to turn off the engine while in park and I was unable to lock vehicle while engine was still running. ...

#11613534 — ELECTRICAL SYSTEM — September 9, 2024 — 1. What component or system failed or malfunctioned, and is it available for inspection upon request? The entire elec...