The door is the first system to interact with a vehicle’s driver. It allows entry into the vehicle; therefore, priority has been given to its performance. The number of studies by automotive door engineers has increased during the past years, while the customer and the market have changed their quality standards. Air bind is the Pressure build up during the process to close the door until it reaches to the highest pressure that it called the pressure spike. The air bind is the major contributor to the door closing efforts and it contributes approximately 40-60% of the completely closing efforts. Predict the contribution of the air bind to the closing efforts will help to improve the door design to meet the door closing efforts with customer satisfaction.