There are 4 stored owner reports matching the engine leading-label group for the 2010 Mazda Mazda5 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)ENGINE SHUT OFF WHILE DRIVING ON HIGHWAY. THIS IS ABOUT MY 5TH EXPERIENCE.
TL* THE CONTACT OWNS A 2010 MAZDA 5. THE CONTACT STATED THAT THERE WAS A KNOCKING SOUND COMING FROM THE ENGINE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE BEARINGS WERE CHIPPING INTO THE ENGINE, CAUSING THE ENGINE TO KNOCK. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 144,000.
TL* THE CONTACT OWNS A 2010 MAZDA 5. WHILE DRIVING APPROXIMATELY 15 MPH, THE ENGINE MADE A LOUD ABNORMAL NOISE. THE FAILURE OCCURRED TWICE. THE DEALER WAS UNABLE TO LOCATE THE CAUSE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 56,000.
MY CHECK ENGINE LIGHT WHEN ON AND I WENT TO THE DEALER AND THEY SAID MY EVAPORATIVE EMISSION SYSTEM LEAK DETECTION PUMP (PART# AJ51-18-581A) NEEDED TO BE REPLACED. THIS HAPPENED AGAIN AND AGAIN; I REPLACED IT A TOTAL OF 3 TIMES IN LESS THAN 5 YEARS. FIRST TIME WAS IN 11/21/2011, THEN AGAIN ON 7/31/2013 AND AGAIN ON 1/2/2015. THERE IS AN OBVIOUS DEFECTIVE IN CRAFTMENSHIP IF I HAD TO CHANGE THE PART 3 TIMES IN LESS THAN 5 YEARS. PLEASE HELP ME. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.