Dean McCrary Mazda · Mobile, AL

2021 Mazda CX-30 Maintenance Schedule

These three model years share one published schedule. Mazda splits the spark plug row by engine here and removes four rows the first CX-30 carried: the brake fluid replacement, the rear differential and transfer oil rows, and the emergency flat tire repair kit inspection. This page states these model years’ own schedule and no other year’s.

10,000Miles or 12 Months · The Maximum Interval
40,000Miles · Spark Plugs, SKYACTIV®-G 2.5T
threeModel Years Share This Table · 2021–2023
NO BRAKE FLUID ROWRemoved Here, and Two Mazda Documents Disagree

What Is Different About This Model Year

The reason these model years have their own page instead of pointing at the current CX-30’s.

This Model Year Opens Mazda’s 2021–2023 Table

Mazda published the same Mazda CX-30 maintenance schedule across 2021–2023 — three model years — and this is the first of them. The revision that opens the span lands on this model year, which is why it is not read off the model year before it. The model years after it inside that span read the same table unchanged, and each has its own page saying so.

The Spark Plug Row Splits by Engine

Mazda prints two rows on these model years: replace every 64,000 km (40,000 miles) on the SKYACTIV®-G 2.5T, and replace every 120,000 km (75,000 miles) on every other engine. The model year before them prints a single row and a single figure. Neither row carries a month figure, so neither is given one here.

The Brake Fluid Row Is Removed — and Mazda Disagrees With Itself

These model years’ manual carries no brake fluid replacement row at all, and no severe row for it either — only a brake and clutch fluid level inspection. But Mazda’s own separately printed scheduled-maintenance document for the first of these model years still prints the row. Two Mazda documents filed under the same model year disagree, so this page states no brake fluid replacement interval for these years in either direction, and our service team will inspect the fluid and tell you what was found.

The Emergency Flat Tire Repair Kit Row Is Gone

The first CX-30 prints that row and inspects the kit annually; these model years do not print it at all. The Mazda3 on the same platform keeps the row for years afterwards, so this is a CX-30-specific removal and not a platform change. Nothing may be carried between the two nameplates on the strength of sharing a floorpan.

What Did Not Move

The maximum interval is still 16,000 km (10,000 miles) or 12 months, the air filter every 30,000 miles or 36 months, the cabin air filter every 48,000 km (30,000 miles) or 24 months, the tires rotated every 16,000 km (10,000 miles), and the severe schedule still changes one row and only one. The last of these model years also renames two rows from engine coolant to coolant, with the marks and the printed sentence unchanged.

How These Model Years’ Table Is Built

Mazda’s own structure, described so you can read your own manual with confidence.

Two schedules, and they are not two full tables. The normal schedule is the whole list; the severe schedule is a short condition list and ONE row that changes. Every figure on this page is labelled with which of the two it comes from.
The normal schedule’s columns are occasions rather than mileages: Mazda heads them “number of times, maintenance was performed”. The Nth column falls at N times 10,000 miles or N times 12 months, whichever comes first, out to 80,000 miles or 96 months. A row marked at every column falls due every 10,000 miles; one marked at every other column falls due every 20,000 miles.
The severe schedule is a real mileage grid — 6, 12, 18, 24, 30, 36, 42 and 48 months against 5,000, 10,000, 15,000, 20,000, 25,000, 30,000, 35,000 and 40,000 miles — and Mazda puts one row on it.
Mazda’s own symbols: I is inspect, and Mazda defines that as inspect and clean, repair, adjust, fill up or replace if necessary. R is replace and T is tighten. Some rows are printed as sentences rather than as marks, and where they are, the sentence governs.
This page covers older model years. The current CX-30 is on its own table and is covered on the Mazda CX-30 maintenance schedule page, and the two are not interchangeable in either direction.
The Factory Schedule — What Mazda asks for at your mileage
The Factory Schedule

What Mazda asks for at your mileage

Bulletins Checked — Updates Mazda has issued for your car
Bulletins Checked

Updates Mazda has issued for your car

Written Up — What was done, and what comes next
Written Up

What was done, and what comes next

Schedule 1 — Normal Driving

These model years’ normal-driving schedule, grouped by the column Mazda marks each row at.

Marked at Every Column
Every 10,000 Miles or 12 Months
Engine oil and filter, drive belts, engine coolant level, brake and clutch fluid level, disc brakes, tire inflation pressure and tire wear, and the function of all lights. Mazda’s note adds: inspect a spare tire, if equipped.
Tire rotation, printed as a sentence rather than as marks: rotate every 16,000 km (10,000 miles). That is this nameplate’s figure and not every Mazda’s.
Marked at Every Other Column
Every 20,000 Miles or 24 Months
Fuel lines and hoses, the vacuum brake booster and hose, brake lines, hoses and connections, steering operation and linkages, front and rear suspension with ball joints and wheel bearing axial play, and the driveshaft dust boot.
The bolts and nuts on the chassis and body sit at the same columns but carry T rather than I, so they are tightened rather than inspected.
The Longer Rows
30,000 Miles and Beyond
Every 30,000 miles or 36 months — air filter. Every 40,000 miles or 48 months — hoses and tubes for emission, and the exhaust system and heat shields. Every 40,000 miles — spark plugs on the SKYACTIV®-G 2.5T, and every 75,000 miles on every other engine, with no month figure printed for either. At 120,000 miles or 120 months, then every 60,000 miles or 60 months — engine coolant. Every 30,000 miles or 24 months — cabin air filter, printed as a sentence.
There is no brake fluid replacement row on these model years’ table and no severe row for it either — only a brake and clutch fluid level inspection at every column. Mazda’s own separately printed document for the first of these model years still carries the replacement row, so two Mazda documents disagree and this page states no interval for it in either direction.
There is no rear differential oil or transfer oil row on these model years’ table, and no emergency flat tire repair kit row either. Mazda removed all three, so this page states nothing for them.
The last of these model years renames engine coolant level and engine coolant to coolant level and coolant. The marks and the printed sentence do not move with the rename.

Sourced from the scheduled maintenance section of the 2021 Mazda CX-30 owner’s manual, document CX-30_8KD4-EA-21G_Edition1, section pages 437 to 439, confirmed identical in the 2022 and 2023 manuals and against Mazda’s standalone scheduled-maintenance documents for two of them. Mazda’s separately printed document for the first of these model years is an intermediate printing that disagrees with the manual about the brake fluid row; that conflict is recorded here rather than resolved, and no brake fluid interval is stated. Your own manual is the authority for your vehicle; bring the mileage and our team will read the table with you. For this model year specifically, Mazda’s own book is document CX-30_8KD4-EA-21G_Edition1_new 2021-3-24 — the one to check your vehicle against.

Which Schedule Applies to Your CX-30

On this nameplate the severe schedule changes one row, not the whole car.

Mazda’s Own Condition List

Mazda prints, for the CX-30: if you drive your vehicle under any of the following conditions, follow the severe driving scheduled maintenance and replace the engine oil and filter every 8,000 km (5,000 miles) or 6 months, whichever comes first; otherwise follow the normal driving scheduled maintenance intervals. The vehicle is idled for long periods or driven at low speeds, such as with police cars, taxis or a driver’s education school car; driving under dusty conditions; driving for long periods in cold temperatures or driving regularly for short distances only; driving under extremely high temperature conditions; and driving continuously in mountainous regions.

It Is One Row, Not the Whole Car

This is the important difference between this nameplate and several Mazdas of the same era. Mazda does not move this car onto a second full table. It changes the engine oil and filter and prints, for everything else, “follow maintenance interval listed in normal driving scheduled maintenance”. Writing it the other way would shorten twenty rows Mazda never shortens.

So the Other Rows Do Not Move

The air filter, the cabin air filter, the brake and chassis inspections and the tire rotation are the same on both schedules. If a shop tells you severe driving has moved all of them on a CX-30 of these model years, that is not what this car’s manual says.

Which One Applies to Yours

That is a question about how the car is driven, and on this nameplate it changes one row. Bring the car and its mileage and our service team will go through Mazda’s own condition list with you before anything is quoted.

Schedule 2 — Severe Driving

What Mazda’s severe-driving schedule actually changes on these model years.

Engine Oil and Filter — Every 5,000 Miles or 6 Months

Mazda prints: replace the engine oil and filter every 8,000 km (5,000 miles) or 6 months, whichever comes first. That is the whole of what the severe schedule changes, and the row sits on its own eight-column grid running from 5,000 miles and 6 months up to 40,000 miles and 48 months.

Everything Else Follows the Normal Intervals

Mazda prints it in as many words: follow the maintenance interval listed in the normal driving scheduled maintenance. The air filter stays at 30,000 miles, the cabin air filter at 30,000 miles or 24 months, the chassis rows at 20,000 miles and the disc brakes at 10,000 miles, whichever schedule the car is on.

The Conditions Mazda Names

The vehicle is idled for long periods or driven at low speeds, such as with police cars, taxis or a driver’s education school car; driving under dusty conditions; driving for long periods in cold temperatures or driving regularly for short distances only; driving under extremely high temperature conditions; and driving continuously in mountainous regions.

What That Means Here

A CX-30 driven in Mobile heat may well meet Mazda’s extremely-high-temperature condition, and if it does, the answer is a 5,000-mile oil and filter and nothing else on the schedule moving. Our service team will go through the list with you rather than assuming it.

Other Mazda CX-30 Maintenance Schedule Model Years

Bring the CX-30 and its mileage and we will read these model years’ own schedule with you — including whether Mazda’s severe condition list applies to how the car is driven.
Schedule ServiceCurrent Service Offers

2021 Mazda CX-30 Maintenance Schedule Near Mobile, AL

Dean McCrary Mazda works from these model years’ own factory maintenance schedule at our Mazda service center in Mobile.

Why These Model Years Have Their Own Page

Mazda split the spark plug row by engine here — 40,000 miles on the SKYACTIV®-G 2.5T and 75,000 miles on every other engine — and removed the brake fluid replacement, the rear differential and transfer oil rows and the emergency flat tire repair kit row that the first CX-30 carries. Its own separately printed document for the first of these years disagrees about the brake fluid, so this page states no interval for it at all. The current CX-30 is on a different table again and is covered on the Mazda CX-30 maintenance schedule page.

Normal and Severe

The normal schedule is the whole list, hung off a maximum of 10,000 miles or 12 months. The severe schedule is a short condition list and one row: engine oil and filter every 5,000 miles or 6 months. Everything else follows the normal intervals, which Mazda prints in as many words.

Booking and Pricing

Service pricing moves, so it lives on the service offers page rather than being written into this one — what you read there is current. Book through the service scheduler, or see the rest of what we do at the Mazda service center.

2021 Mazda CX-30 Maintenance Schedule Questions

What is the maintenance schedule for a 2021 to 2023 Mazda CX-30?

One schedule covers all three. Mazda prints: every maintenance must be done when the display or wrench indication comes on, and the indication comes on before reaching the maximum interval of 16,000 km (10,000 miles) or 12 months. The columns count occasions rather than mileages, out to 80,000 miles or 96 months.

When is the brake fluid replaced on a 2021 to 2023 Mazda CX-30?

Mazda’s manual for these model years schedules no brake fluid replacement at all — only a brake and clutch fluid level inspection every 10,000 miles or 12 months. Its own separately printed document for the first of these years does print a replacement row, so two Mazda documents disagree and this page states no interval either way. Bring the car and our service team will inspect the fluid and advise.

When are the spark plugs replaced on a 2021 to 2023 Mazda CX-30?

Mazda splits the row by engine: every 64,000 km (40,000 miles) on the SKYACTIV®-G 2.5T, and every 120,000 km (75,000 miles) on every other engine. Neither row carries a month figure, so this page states the mileage and stops there.

Does Gulf Coast driving change the schedule on a 2021 to 2023 Mazda CX-30?

Only one row, if Mazda’s conditions apply. Mazda does not move this car onto a second full table — it names a short condition list and replaces the engine oil and filter every 8,000 km (5,000 miles) or 6 months, and prints that everything else follows the normal intervals.

How much is maintenance for a 2021 to 2023 Mazda CX-30 at Dean McCrary Mazda?

Service pricing moves, so it lives on one page that is kept current rather than being written into pages like this one. Current offers are on the service offers page, and our service team will confirm the figure when you book.