Left: Removing individual instruments from the combined instrument cluster:
1 - oil temperature indicator (reinforced with a nut);
2 - hours;
3 - main instrument panel;
4 - covering the main panel.
Right: if additional instruments are installed, then instead of the 0.3 bar hydraulic switch there is an oil pressure sensor (2). The oil pressure gauge wire and the hydraulic switch wire are connected to it. Next to them in a 4-cylinder engine there is an oil temperature sensor (1), also on the oil filter flange.
If the vehicle is equipped with a self-checking system, the light panel at the top is reserved for the control system indicator symbols (more about her later in this chapter).