There are 2 stored owner reports matching the fuel system leading-label group for the 2008 Mazda CX-9 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 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)LETTER TO MAZDA OF AMERICA ENGINEERING 10/2/2018 SUBJECT: SHARED DESIGN FLAW OF 2008 CX-9 AND 2008 FORD EDGE STAMPED STEEL FUEL TANK (FORD HAS RECALLED THIS TANK) MAZDA ENGINEERING, I HAVE LOOKED AT TWO DESIGNS TO SECURE TANKS. 1) TANK IS BOLTED AND ONE WHERE THE TANK IS BOLTED DIRECTLY TO A FRAME THROUGH THE SEALING FLANGE. (CURRENT CASE WITH CX-9 AND FORD EDGE -2008) 2) TANK IS SECURED USING TRADITIONAL TANK STRAPS THE FORD EDGE TANK (THE SAME AS CX-9) WAS RECALLED IN CASE 1 BECAUSE THE BOLTED FLANGE IS PART OF THE TANK. AFTER REPEATED FLEXING OF FRAME AND TANK WITH THE ADDITION OF CORROSION IN NORTHERN STATES, THE FIXED FLANGE RUPTURES THE THANK CAUSING SUDDEN FUEL LOSS ON A TANK THAT DOES NOT APPEAR TO BE CORRODED. THIS IS OF COURSE A LARGE LIABILITY AS BRITTLE FATIGUE FRACTURE IS BY NATURE SUDDEN. THERE IS NO WARNING FOR THE CUSTOMER. THEY PULL INTO THEIR GARAGE AT HOME OR WORK AND ARE A SUDDEN HAZARD. IN CASE 2, A TRADITION METHOD OF SECURING A TANK, THE LOAD IS DISTRIBUTED ON A STRAP. SHOULD THE STRAP FRACTURE THERE IS NO SUDDEN FUEL LOSS. THE STRAP CAN BE REPLACED. THE TANK STAYS SEALED. THIS DESIGN FLAW HAS RESULTED IN A SERIOUS ENOUGH ISSUE THAT FORD HAS RECALLED OVER 200,000 VEHICLES IDENTICAL TO THE CX-9 TO ADDRESS THIS EXACT ISSUE. FORD AND MAZDA SHARE NOT ONLY THE SAME DESIGN, BUT THE SAME TANK MANUFACTURER AND CHASSIS. THE MAZDA ISSUE IS MORE SERIOUS AS COATED TANKS DO NOT SHOW ANY WARNING SIGNS OF CORROSION. WHERE SALT AND BRINE ARE USED IN NORTHERN US DURING THE WINTER THESE TYPES OF COATINGS DO NOT REDUCE CORROSION. THEREFORE, THE NATURE OF THE TANK RUPTURE IS SUDDEN FATIGUE FAILURE WITH NO WARNING AND POSES A CERTAIN RISK OF FIRE IN AN ENCLOSURE SUCH AS A HOME GARAGE. FAILURE WAS - SUDDEN, UNABLE TO BE DETECTED AND LIFE THREATENING
TL* THE CONTACT OWNS A 2008 MAZDA CX-9. THE CONTACT STATED THAT THERE WAS A STRONG ODOR OF FUEL WHEN THE HEAT/COOL SYSTEM WAS ACTIVATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC, WHO DIAGNOSED THAT THE FUEL RAIL WAS LEAKING. THE VEHICLE WAS NOT REPAIRED DUE TO THE PART NOT BEING AVAILABLE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 76,000.
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.