The Bosch K-jetronic system is made up of different components, which are discussed below and their functions. Only the components related to the system are shown below. The same categories can be found in the Shop area where the available parts are displayed.

The K-jetronic system belongs to the group of CIS injection system which stands for continuous injection system. This means that the fuel is continuously injected into the inlet manifold. The system is completely mechanical. From the end of 1979, this system was modified by adding a lambda control system (KA-jetronic). This system is shown in the figure below, the components 11, 12, 16 and 18 are specific to this lambda control system and are therefore not present in a mechanical K-jetronic system.