Nowadays, on-board computers in cars are essential equipment for the driver, they allow you to prevent breakdowns and avoid damage to the car. Understanding which warning lights connect the fault to the car component is quite intuitive. Reported in the manuals supplied as standard by the manufacturer you can find all the types of warning lights present on the instrument panel. Reported in this article you will find listed the 5 most frequent fault warning lights that haunt all motorists.
Article Key Points
Engine light
This warning light in new generation engines indicates theanti-pollution system anomaly. It usually lights up in case of problems with the particulate filter or EGR valves. The problem could be related to various factors such as a large percentage of soot or injectors in diesel cars, while in the pump for the auto motor petrol. In diesel engines, before mechanical intervention, it is recommended to forced regeneration, It is nothing more than an operation performed via vehicle diagnostics and is used to free the particulate filter. In petrol engines, it is mechanically operated.
Preheating light
The preheating light is present only and exclusively on diesel engines. This light has the task of signaling the correct functioning of the spark plugs that serve to overheat the fuel to facilitate starting the car. Usually the light stays on for a few seconds before starting. If the light remains fixed instead the control unit signals the error of the burned spark plug.
Tire pressure warning light
La tire pressure warning light It is used to indicate low pressure or a flat tire. Driving with flat tires or a flat tire causes the ABS to signal the difference in level to the control unit, turning on the warning light. On vehicles equipped with TPMS valves, the warning light very often happens that a valve sensor can run out or break, signaling the fixed warning light on the instrument panel.
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Engine oil warning light
The engine oil light is very important, it can indicate a lack of oil inside the sump and since engine oil is essential to lubricate the key components of an engine this light is of fundamental importance. Once it comes on it is advisable to stop the vehicle. The engine oil light in some vehicles can be yellow instead of red and flashes instead of remaining steady, this can mean that the vehicle needs to be changed.
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Coolant warning light
If the red coolant light suddenly comes on, you must stop the car and stop. This light indicates the temperature of the liquid inside the cooling system, once it comes on it means that the liquid inside has reached very high temperatures. In some recently manufactured cars, however, this light can be found in blue, it means that the liquid needs to be topped up.
Article published on 17 October 2022 - 09:14
