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
$350 - $650
DIY Savings Potential
$200/year
The 2021 Mazda CX-9 follows a 7,500-mile/12-month maintenance interval for oil changes, tire rotations, and brake inspections, with major services like spark plugs and transmission fluid at 40,000 miles. The engine uses a timing chain (not a belt), and coolant replacement is recommended at 120,000 miles or 10 years, repeating every 60,000 miles thereafter.
Service Schedule
Oil Change
Every 7,500 miles / 12 months
$35 - $75
DIY: easy | critical
Tire Rotation
Every 7,500 miles / 12 months
$20 - $50
DIY: moderate | important
Brake Inspection
Every 7,500 miles / 12 months
$0 - $0
DIY: professional | critical
Cabin Air Filter Replacement
Every 15,000 miles / 24 months
$15 - $45
DIY: easy | important
Engine Air Filter Replacement
Every 30,000 miles / 48 months
$20 - $55
DIY: easy | recommended
Transmission Fluid Replacement
Every 40,000 miles / 60 months
$150 - $250
DIY: professional | important
Spark Plugs Replacement
Every 40,000 miles / 60 months
$120 - $200
DIY: difficult | important
Coolant Flush
Every 120,000 miles / 120 months
$100 - $180
DIY: moderate | important
Timing Chain Inspection
Every 0 miles / 0 months
$0 - $0
DIY: professional | recommended
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