The car stopped working it turns on lights and stuff but doesn't turn over at all

Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. I’m sorry to hear you're having trouble with your vehicle. It sounds like your 300 is experiencing a starting issue that could be related to either the starter motor, starter relay, or a bad cell in the battery. The clicking noise you hear when you try to start the car is often a sign that the starter is trying to engage, but it isn't able to turn the engine over. Another possibility is that the battery, while showing power to the lights and dashboard, might not have enough cranking amps to power the starter motor. Even though it seems like the battery is fine, it may not have the capacity to turn over the engine. I would recommend having the starting and charging systems tested by a trusted repair shop to get an accurate diagnosis. If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!