Preheating system

With a cold engine, it is not possible to reach the auto-ignition temperature only due to the compression ratio, so the fresh charge in the combustion chamber must be preheated.

To do this, a pin glow plug is screwed into each combustion chamber. The main parts of a glow plug are the body and the heating pin pressed into it. As soon as voltage is applied, the electric coil of the heating pin heats up to over +850°C within a few seconds, so that the warm-up time before the engine is started by the starter rarely lasts more than 10 seconds. When the preheat indicator on the instrument panel goes out, the engine can be started.