When purchasing a used car, you should check the operation of the indicators and warning lights on the instrument panel. The speedometer needle deviates immediately after the start of movement. The speedometer has two counters, one of which records the total mileage of the car, and the second - daily. Resetting the daily mileage is done by pressing the reset button.
The tachometer displays the number of engine revolutions.
The watch has a high precision. Power comes from the battery and when it is disconnected, the clock will need to be adjusted.
Airbag warning light. Lights up when the ignition is turned on for about 10 seconds. From the moment the warning light goes out, the airbags are fully operational.
Preheat warning light for vehicles with a diesel engine. This light should come on when the ignition is turned on with a cold engine. If this does not happen, then you need to contact the workshop. After the warm-up is completed, the light goes out and the engine can be started. When the engine is warm, the preheat light will not come on.
Rear window heater warning light. Should be lit when the heater is turned on.
Warning light for condensation in the fuel filter. Available on older diesel vehicles. Newer models are not equipped with such a light bulb. This light is on when there is a significant amount of condensate in the filter.