Variable preheating
The duration of the warning light and the voltage supply to the glow plugs depends on the temperature of the coolant and the voltage of the battery.
In all cases, the duration of the injection signal lamp does not exceed 15 s.
Permanent preheating
After the warning light goes out, the glow plugs remain energized for a constant period of 10 seconds.
Engine start
The glow plugs remain energized for as long as the starter is running.
Post-heating while the engine is running
During this phase, the glow plugs are constantly supplied with voltage depending on the temperature of the coolant.