One problem related to tank assembly has been reported for the 2007 Chrysler 300C. The most recently reported issues are listed below.
I was traveling north on I-95 at 70 mph in south carolina. Fuel gauge indicated 1/4 tank of gas and over 100 miles to empty. The obd light came on and the car slowed down (5-10 mph). I was able to roll it off the road onto the right shoulder. Gas gauge indicated a 1/4 tank of fuel. I turned the ignition off and sat for15 minutes. When I attempted to start the vehicle, it acted as though it had no gas. However, the gauge showed a 1/4 tank full. Vehicle was towed (aaa) to an exxon station in gable, SC. Fuel was added to the tank and the car could be started. The addition of $25. 00 of fuel (6 gallons?) did not move the gauge from the 1/4 tank level. An additional $25 fueling brought the gauge almost up to full. I drove it roughly 500 miles from SC to MD without incident. However, I did not allow fuel level to drop below 1/2.