The 2007 Mazda6 has 4 recalls, the most serious involving the driver and passenger frontal airbag inflators, which can rupture during deployment and send metal fragments into the cabin, causing serious injury or death.
All three airbag recalls trace to the same core problem: moisture intrusion causes the inflators to become unstable over time. The driver-side inflator can rupture in a crash, scattering metal fragments toward the driver or anyone else in the front of the vehicle. The passenger-side inflator carries the same risk, and prior recall repair attempts did not fully resolve the issue, as replacement inflators used the same flawed design and remain susceptible to the same failure. Anyone in the front passenger seat faces the same danger of metal fragments in a crash requiring airbag deployment.
On the fuel system side, this recall only affects California-emissions-specification vehicles. The protective coating on the outside of the metal fuel tank may have been damaged during assembly, leaving the tank without adequate corrosion resistance. Over time the tank can corrode through completely, allowing gasoline to leak from the underside of the vehicle. If that fuel contacts any ignition source, a fire can result.