NHTSA Complaint #11515492 — 2018 MAZDA CX-9

POWER TRAIN issue reported to NHTSA

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Complaint Details

ODI Number 11515492
Vehicle 2018 MAZDA CX-9
Component POWER TRAIN
Date of Incident
Date Filed
Mileage N/A miles
Crash No
Fire No
Injuries 0
Deaths 0
Vehicle Towed No
State PA

Consumer Description

The vehicle has a cracked cylinder head as a result of stress put on the block from a bad exhaust manifold design. This is a known issue to Mazda and service bulletin was sent out to all their dealerships in 2021. Mazda only offered to pay a very small portion of the repair and puts the rest of the cost on the customer. Luckily I caught the issue early but this could have been dangerous if the car overheated and the engine failed on the highway. There are countless other stories of consumers having the same issue with the CX-9 and CX-5 of the same year. Many resulting in engine failure.

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