Are engine lights serious

There is a risk of expensive defects: You should definitely take these warning lights in the car seriously


Every driver wants their vehicle to work properly. That is why many drivers regularly attend the vehicle inspection and have defective parts replaced at an early stage. But there are also drivers who postpone reported defects in the hope that nothing bad will happen. Many drivers do not drive straight to the workshop, especially when “only” one warning light flashes in the car. Of course, there can be something harmless behind a defective warning light, for example an electronic error that triggers the light incorrectly. As a driver, however, you cannot be absolutely sure and you should definitely take the flashing seriously. Because the risk is high that something can happen while driving or the car stops. We'll show you which warning lights you need to react quickly to - and which warning lights don't require an immediate response.


Which warning lights in the car are particularly critical?

Basically, warning lights are usually color-coded like a traffic light. This means that particularly critical warning lights are red. It says here that the error should be taken seriously and the possible defect should be checked immediately. If a yellow or orange warning light lights up, the defect should be checked as soon as possible. That means you should take care of it in the next few days and visit a workshop. In any case, you should check the error before a longer trip (e.g. going on vacation) in order to avoid unpleasant surprises during the journey. Green usually indicates that a certain function is active and that the function is running smoothly (e.g. switched on low beam). In some vehicles there are still “white indicator lights” that represent a recommendation. Only the color "blue" is reserved for the high beam. A few seconds after starting the engine, all yellow and red lights should go out. If some of them still burn, the defect should be dealt with. Each warning light has a specific symbol, which can vary slightly depending on the vehicle type. The operating instructions for the vehicle provide a remedy, providing quick information about the possible defect. The warning lights for oil and the battery, for example, are particularly critical. If the oil pressure is low, this can in the most severe case lead to engine damage. The same applies to the coolant, where the engine can overheat. A defective battery, on the other hand, can lead to starting problems that can even lead to it stopping. The airbag warning light should also not be ignored. If there is a malfunction, the airbag may not be able to deploy in the event of an accident, so that there is an increased risk of injury.


What should be done when it lights up?

If the lights mentioned above light up, you should quickly go to a workshop and take care of it. By reading out the fault memory and inspecting the vehicle, it is then determined whether the fault is actually present or whether it is possibly just a false alarm. If the oil pressure is low, the oil should be topped up quickly. Coolant should also be refilled when the corresponding lamp is displayed. A defective airbag should also be replaced as soon as possible. However, many warning lights (seat belt forgotten / handbrake on) can be quickly extinguished and are more intended as reminder lights for a safe journey.


Which warning lights don't necessarily require an immediate response?

On the other hand, some lights do not require an immediate response. This includes, for example, the warning light that lights up when the level of the washer fluid is too low. If necessary, you can clean the window manually at the petrol station and fill up the washer fluid later. But you shouldn't wait too long. Because the weather can change quickly and when it rains you can quickly smear the dirt on the windshield without wiping water. The warning light for a low fuel level can also be ignored for a few kilometers. But you shouldn't wait too long here either, since the measurement accuracy of the display is not always reliable. There is a risk of being left without fuel. Built-in systems such as ABS and ESP can also be checked at a later point in time. In the meantime, however, you should drive slower and extremely carefully when it is wet and especially when cornering and under no circumstances ignore such warning lights for a long time.

You might also be interested in:

https://www.leasingtime.de/blog/755-was-ist-pflicht-das-muessen-sie-im-auto-real- mitfuehren

https://www.leasingtime.de/blog/837-die-bedeutung-der-motorkontrollleicht