PDI stands for Pre-Delivery Inspection, which is the final check completed before the sale of a vehicle, whether brand new or pre-owned. The PDI is meant to ensure that the car or truck is in top mechanical and operational condition, and it involves examining the major components of the car. The exact procedure varies depending on the manufacturer, but PDI checks will generally include examining the wheels, inspecting the exterior lights, and checking the fluid levels and accessories. The PDI also involves removing all of the equipment fitted to the car to protect it during transit, such as the bodywork wrapping and the suspension blocks that stop the car bouncing around while it’s being transported. Additionally, a portion of the checks will involve the vehicle having a quick shakedown drive on the road to check for any issues. While technically it is the car dealers job to conduct a thorough PDI before delivering it to the customer, it is better to inspect the car by yourself before collecting the vehicle from the dealership.