2018 Mazda CX-9 engine problems
The 2018 Mazda CX-9 has 74 engine complaints filed with NHTSA — 45% of the year's total, and up sharply from the prior model year.
74
Engine complaints
45%
Share of year
0
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“Engine is leaking coolant apparently due to a cracked engine block caused by a manufacturing defect in the casting. Mazda has a Technical Service Bulletin, subject:Leaks at cylinder head and the number is 01-013/21. But they refuse to help cover their mistakes and now we owners are stuck with…”
Common questions
How many engine complaints does the 2018 Mazda CX-9 have?
NHTSA has 74 complaints about the 2018 Mazda CX-9 engine — 45% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.