Should you turn off the air conditioner before you turn off the engine?

Yes, it's generally a good idea to turn off the air conditioner before turning off the engine. This helps prevent a sudden surge in engine load, which can strain the system. Additionally, turning off the air conditioner first allows the engine to cool down more gradually, which can be beneficial for its longevity. However, in some modern vehicles, this may not be as critical due to advanced engine management systems.