2021 Mazda CX-5 maintenance schedule

Written in plain English and reviewed by the eli5cars editorial team · Last reviewed June 2026

2.5L SkyActiv-G 4-cylinder (187 hp) or 2.5L SkyActiv-G Turbo (227-256 hp depending on trim/fuel)SportTouringCarbon EditionMSRP $25,370

Jump to a mileage milestone:

30k miles 60k miles 90k miles 120k miles

Full service timeline

Mileage	Service items	Details
8k mi	Engine oil and filter change — 0W-20 full synthetic (Mazda factory interval: 7,500 miles under normal use for both 2.5L NA and 2.5L Turbo) Tire rotation Inspect brake pads and rotors — front and rear Check all fluid levels
15k mi	Engine oil and filter change — 0W-20 full synthetic Tire rotation Replace cabin air filter Inspect brake fluid color and level Inspect AWD rear differential fluid (i-Activ AWD models)
23k mi	Engine oil and filter change — 0W-20 full synthetic Tire rotation Inspect steering and suspension linkage Inspect drive belt condition
30k mi	Engine oil and filter change — 0W-20 full synthetic Tire rotation Replace engine air filter Replace cabin air filter Inspect spark plugs — iridium (2.5L SkyActiv-G NA factory interval ~100k+ miles; 2.5L Turbo factory interval shorter due to boost, typically ~60k — inspect both at 30k) Inspect i-Activ AWD rear differential fluid — Mazda-spec gear oil Inspect 6-speed automatic transmission fluid condition (SkyActiv-Drive)	View →
45k mi	Engine oil and filter change — 0W-20 full synthetic Tire rotation Replace brake fluid — DOT 3 (Mazda recommends every 2 years or ~30k-45k miles)
60k mi	Engine oil and filter change — 0W-20 full synthetic Tire rotation Replace cabin air filter Replace engine air filter Replace spark plugs — 2.5L SkyActiv-G Turbo iridium (factory interval: ~60k miles — turbocharged combustion stress shortens plug life vs the NA engine) Replace i-Activ AWD rear differential fluid (AWD models) Inspect coolant condition (Mazda FL22 long-life coolant — first change at 100k+ or per Mazda's extended-life schedule) Inspect serpentine belt condition and tension Inspect turbocharger oil feed/return lines — 2.5L Turbo models	View →
90k mi	Engine oil and filter change — 0W-20 full synthetic Tire rotation Inspect 6-speed SkyActiv-Drive automatic transmission fluid — replace under severe-duty schedule Inspect brake calipers, hardware, and parking brake cables Inspect all CV joints and axle boots — front and rear (AWD) Inspect power steering — EPS rack boots	View →
120k mi	Engine oil and filter change — 0W-20 full synthetic Tire rotation Replace spark plugs — 2.5L SkyActiv-G naturally-aspirated iridium (factory interval: 100k-120k miles) Replace engine coolant — Mazda FL22 long-life coolant Replace 6-speed SkyActiv-Drive automatic transmission fluid Replace i-Activ AWD rear differential fluid (AWD models) Full brake system flush — DOT 3 Inspect and service wheel bearings Inspect all suspension bushings, ball joints, and sway bar end links	View →

Upgrading your CX-5's wheels?

See verified wheel fitments for the 2021 Mazda CX-5 — bolt pattern, hub bore, and offset all checked.

Verified CX-5 fitments at AlloyHaus →

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Common symptoms for this vehicle

Check engine light on? Get a free code scan

If your check engine light is on, most auto-parts stores (AutoZone, O'Reilly, Advance) will read the code for FREE — no purchase required, just walk in. Bring the code back here and look it up at eli5cars.com/obd2 for the plain-English explanation.

Note: a scan only helps when there's an active fault code. For purely mechanical symptoms (noises, vibrations, leaks), a scan may show nothing — the suspects listed above are your starting point.