机械传动系统损坏

机械动力总成是指使车辆运动的机械系统。这包括内燃机、传动系统、蒸汽锅炉等。机械动力总成损坏可能因碰撞而发生，但也可能因车辆操作不当而发生。缺乏润滑，或最常见的是，变速箱油过热可能会造成严重损坏，甚至是灾难性故障，使车辆无法移动并可能造成车身损坏。

Damage to such a powertrain subsystem can occur from collisions, but it is much more severe when caused by running powertrains at too high of a temperature , bad gear shifting and inadequate lubrication in diesel and steam engines. Exposure to fire , or submersion in water can also damage this subsystem.

High mechanical powertrain damage can be catastrophic, potentially fully immobilizing the vehicle.

柴油发动机也会根据它们运行的​​转速而磨损。传动部件的磨损取决于施加在它们身上的压力大小。虽然无法完全避免损坏，但通过轻柔地操作机器可以将损坏降至最低。