There are 4 owner-reported fuel system complaints for the 2009 Mazda Mazda3in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2009 Mazda Mazda3. The contact stated while the vehicle was parked, the contact noticed a puddle of fuel on the ground underneath the vehicle. The contact stated that previously there was an abnormally strong odor inside the vehicle and in the trunk. In addition, the contact stated that the odor was very strong, causing her to become light-headed. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 102,212.
The fuel pump lock ring on my 2009 Mazda Mazdaspeed3 has failed which is causing two engine codes: P0442 and P0455. In addition there is a strong smell of gasoline fumes around the rear of the car after driving and parking. The fuel pump lock ring is a plastic threaded ring which secures and seals the fuel pump and fuel level sender to the fuel tank. Mazda has released a safety recall 5121I for MY2009-2011 RX-8 and MY2006-2007 Mazdaspeed6 vehicles. Mazda states: "On certain subject RX-8 and Mazdaspeed6 vehicles, improper installation of the fuel pump mounting rings may lead to cracking of the rings, causing fuel leakage. In addition, on certain RX-8 vehicles, the fuel pump mounting rings may deteriorate due to heat exposure from the engine and exhaust pipe due to insufficient heat resistance at the top side of the fuel tank. This may also lead to cracking of the rings, causing fuel leakage. Fuel leakage may result in increased risk of fire in the presence of an ignition source near the vehicle." The faulty part number for the RX-8 matches that of the Mazdaspeed3. That is Mazda part number: BN8F-42-167 I believe the failure of this part and recall should extend to affected Mazda 3 vehicles, and any other models with the same part. I have opened a case with Mazda Corporate. Case number: 14466166445 I have uploaded a video of the smoke test performed by a local shop indicating the leak is coming from the ring: https://photos.app.goo.gl/6t6KeeaDPLgGzvvaA I have also attached a screenshot of the video, unfortunately the image quality provided by the mechanic is very poor.
TL* THE CONTACT OWNS A 2009 MAZDA MAZDA3. THE CONTACT STATED THAT SPIDERS WERE ALL OVER THE VEHICLE. THE CONTACT DID RESEARCH AND FOUND THAT MAZDA RECALLED THE 2009 MAZDA6 UNDER NHTSA CAMPAIGN ID NUMBER: 11V134000 (FUEL SYSTEM: GASOLINE: STORAGE TANK ASSEMBLY) WHICH STATED THAT A CERTAIN TYPE OF SPIDER COULD WEAVE A WEB INSIDE THE FUEL CANISTER. THE CONTACT STATED THAT THE SAME SPIDER WAS IN THEIR VEHICLE. THE MANUFACTURER WAS CONTACTED AND STATED THAT THE 2009 MAZDA WAS NOT INCLUDED IN THE RECALL AND OFFERED NO FURTHER ASSISTANCE. THE FAILURE MILEAGE WAS UNKNOWN, BUT THE CURRENT MILEAGE WAS 30,000.
I HAVE A 2009 MAZDA 3 WITH 9200 MILES. THEIR HAVE BEEN INSTANCES WHERE THE CHECK ENGINE LIGHT ILLUMINATES INDICATING THE GAS CAP IS NOT SECURE. TODAY, 8/11/2010 THE GAS CAP WAS STUCK AND HAD TO TAKE IT TO THE DEALER TO GET REMOVED AND INSTALL A NEW GAS CAP. THE SERVICE MAN, JIM COLTREP SAID THAT HE HAS HEARD ABOUT GAS CAPS SEIZING. MY DAUGHTER IS THE PRIMARY DRIVER SHE DOESN'T NEED THIS PROBLEM. THE DEALER CAN'T GUARANTEE ME THAT I WON'T HAVE A PROBLEM IN THE NEAR FUTURE. I SEE ON THE WEB A LOT OF COMPLAINTS ABOUT THE MAZDA 3 GAS CAP PROBLEM. WHEN IS THIS GOING TO BE CORRECTED ON A NEAR PERMANENT BASIS? *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.
Data synced from NHTSA on Apr 26, 2026