The contact owns a 2021 Mazda Mazda3. The contact received notification of an unknown Class Action Lawsuit Number however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
2021 mazda Mazda3 engine problems
moderate 16 complaints filed with NHTSA · avg repair $3,100
Complaints
16
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 8 most recent
Purchased car in January 2020 and within a month/few thousand miles the low engine oil light came on. Almost two years later car continues to burn excessive oil triggering low engine oil light. Dealer doesn’t acknowledge an issue, Mazda still doesn’t have a repair. Owners required to pay for excess servicing until a repair is issued. This is a widespread problem impacting the engine.
Turbo using/burning oil- Consumption issue.
Oil light has come one twice within 17,000 miles of owner ship. The first time at 4,800 miles and the second at 17,529 miles, the most recent was only 3,500 miles since the last oil change.
Low oil light - car is burning oil and only has 11,400 miles. Approx 3/4 to 1 quart missing...
After roughly 2,000 miles of driving, the low oil light comes on. The engine is burning oil. Mazda has issued a TSB on it, but they have taken no action to fix the issue. Right now they just top off the oil.
The engine is burning oil. Oil and filter were changed at 5000 miles. At about 9000 miles, the engine oil level light came on. Topped off with oil and took to dealer, they confirmed no oil leaks and changed the oil.
At around 3600 Miles my Mazda which I had for only a couple of months displayed a low engine oil light which required a visit to the dealership.This was under normal driving conditions.
Common questions
How serious is the engine problem on the 2021 mazda Mazda3?
It's a documented issue but not catastrophic. 16 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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