Two problems related to engine noise have been reported for the 2009 Mazda MAZDA6. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Mazda MAZDA6 based on all problems reported for the 2009 MAZDA6.
Was driving vehicle at 45 mile per hour. Suddenly noticed steering wheel was off center. I did not hit a pothole or any other obstructions on the road. Steering became very loose and vehicle hard to steer. When braking the vehicle started to make squealing sound and pulled to one side. Suspension became very harsh even on good surface road. . This is a catastrophic failure with no warning. Fortunately was able to get vehicle to auto repair center without getting into accident. Auto repair facility examined vehicle and showed me that engine cradle - subframe had rusted thought and broke. This caused the engine to go off center which caused the braking, steering, and suspension issues. Auto repair facility told me the vehicle was not safe to drive and made me sign a waiver to release the vehicle.
I heard chirping noise from the car and took it to a dealer who wasn't able to reproduce the noise but the noise came back and with in the next 10 days it got worse. The dealer told that there was a leakage from exhaust donut and exhaust heat shield had to be fixed. I got them fixed and after 3 days and less than 100 miles I hear the chirping noise again and this time it is louder. I can hear it even when the car is parked.