A new warning light on your dashboard? You don’t figure out why it doesn’t switch off… It’s normal, an automobile is complex and there are various motives why a light may occur. In the event that your glow plug light comes on while driving your Volkswagen ID.3, it may signal different problems. In this article, we will do anything we can to support you see things more clearly. First, we will see how the preheating light on your Volkswagen ID.3 operates, and then the different reasons it lights up when you are driving

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What is the role of my Volkswagen ID.3 glow plug light?

The main role of the engine glow plug light, which is most of the time represented by a yellow coil, is to ensure that your glow plugs are working correctly. In reality, it must light up when you switch on your Volkswagen ID.3 to tell you that they are heating the intake air in your cylinders and must go out after a few moments when the engine is running. This preheat light is therefore not expected to stay or come on while driving with your car. Nevertheless, if it comes on while driving, it may show multiple issues, we will try to describe the most important ones.

What to do if the glow plug light comes on while driving on my Volkswagen ID.3?

A glow light that comes on while driving on your Volkswagen ID.3 or at any other time other than when the engine is started is designed to alert you to a problem other than your spark plugs, we will look at this now. In any case, plug in your car to the diagnostic tool will allow you to properly interpret the motive for the light up of your glow light.

My Volkswagen ID.3 glow light comes on and I’m going through a loss of power

The first situation is that you notice that your glow plug light comes on while driving your Volkswagen ID.3 and that you also knowledge a loss of power. In this instance, different problems can describe its presence. Here is a list of the most important motives:

  • Problem of EGR valve, in fact, if you go through a loss of power, it is possible that your EGR valve is clogged, in such a case, it is logical that your preheat light comes on while driving on Volkswagen ID.3 because it is one of the problem of which it is meant to warn you. Have the status of your valve inspected
  • Issue linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can result in turbo boost and a perturbation in the operation of the turbo.
  • Issue relevant to the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that disrupt its proper operation.
  • Finally, the last issue that could lead to a glow indicator light on your Volkswagen ID.3 coupled with a loss of power, is that your fuel filter is too dirty, you should come to feel jerks because of a bad fuel flow in the engine.

My glow plug light comes on or is flashing but no difference on the performance of my Volkswagen ID.3

Finally, we’ll give you the reasons for a glow plug light that comes on on your Volkswagen ID.3 without you feeling any difference in power or car behaviour. In most cases, this is an electronic problem:

  • Glow plug relays or fuses to be replaced, test and change if necessary.
  • A contactor/potentiometer on one of your pedals (brake, accelerator or clutch) has failed, often a simple de-seizure will be enough to get rid of the issue.
  • You have a false contact somewhere in your electrical circuit, test the other solutions first because it is not easy to find it alone, we advise you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • If you have any further questions about the Volkswagen ID.3, do not hesitate to consult our Volkswagen ID.3 category.