2021 Mazda Cx 9 Maintenance Schedule & Costs
Complete maintenance schedule for the 2021 Mazda Cx 9. See service intervals, costs, and DIY savings potential.
Annual Maintenance Costs
Estimated Annual Cost
$400 - $800
DIY Savings Potential
$300/year
Follow the oil-change reminder, but do not exceed 7,500 miles or 12 months between oil and filter changes. The CX-9 uses a timing chain with no routine replacement interval; inspect it if symptoms such as rattling, timing faults, or abnormal wear develop.
Service Schedule
Oil Change and Oil Filter
Every 7,500 miles / 12 months
$70 - $140
DIY: easy | critical
Tire Rotation
Every 5,000 miles / 6 months
$25 - $60
DIY: moderate | important
Brake Inspection
Every 7,500 miles / 12 months
$0 - $75
DIY: moderate | critical
Engine Air Filter Replacement
Every 30,000 miles / 36 months
$30 - $85
DIY: easy | recommended
Cabin Air Filter Replacement
Every 30,000 miles / 24 months
$35 - $100
DIY: easy | recommended
Automatic Transmission Fluid Inspection
Every 30,000 miles / 24 months
$0 - $75
DIY: professional | important
Automatic Transmission Fluid Replacement
Every 60,000 miles / 60 months
$180 - $350
DIY: difficult | recommended
Engine Coolant Inspection
Every 15,000 miles / 12 months
$0 - $60
DIY: easy | important
Engine Coolant Flush and Replacement
Every 120,000 miles / 120 months
$180 - $325
DIY: moderate | recommended
Spark Plug Replacement
Every 40,000 miles / 48 months
$220 - $450
DIY: moderate | important
Timing Chain Inspection
Every 100,000 miles / 120 months
$100 - $250
DIY: professional | recommended
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