A new light on your dashboard? You don’t understand why it doesn’t switch off… It’s typical, an auto is elaborate and there are multiple factors why a light may occur. In cases where your glow plug light comes on while driving your Volkswagen ID.4, it may possibly signify different problems. In this post, we will do anything we can to help you see things more clearly. First, we will see how the preheating light on your Volkswagen ID.4 operates, and then the different reasons it lights up when you are driving

glow-plug-light-volkswagen-id4

What is the purpose of my Volkswagen ID.4 glow plug light?

The main goal of the engine glow plug light, which is generally represented by a yellow coil, is to guarantee that your glow plugs are working effectively. In reality, it must light up when you switch on your Volkswagen ID.4 to tell you that they are heating the intake air in your cylinders and must go out after a few minutes when the engine is running. This preheat light is therefore not supposed to stay or come on while driving with your car. Nevertheless, if it turns on while driving, it may show different failures, 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.4?

A glow light that comes on while driving on your Volkswagen ID.4 or at any other time other than when the engine is started is intended to notify you to a problem other than your spark plugs, we will take a look at this now. No matter the reason, a switch to the diagnostic tool will allow you to properly understand the cause for the light up of your glow light.

My Volkswagen ID.4 glow light comes on and I’m having a loss of power

The first possibility is that you detect that your glow plug light comes on while driving your Volkswagen ID.4 and that you also knowledge a loss of power. In this instance, different problems can explain its lightning. Here is a list of the most important factors:

  • Trouble of EGR valve, indeed, if you undergo a loss of power, it is possible that your EGR valve is blocked, in this instance, it is rational that your preheat light comes on while driving on Volkswagen ID.4 because it is one of the failures of which it is supposed to warn you. Have the status of your valve checked
  • Issue linked to the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can result in turbo boost and a disturbance in the operation of the turbo.
  • Issue related to the injection, either an injector that has seized up or the injection pump that is malfunctioned by filings or other possible foreign bodies that disturb its proper operation.
  • Finally, the last problem that could lead to a glow indicator light on your Volkswagen ID.4 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.4

Finally, we’ll give you the reasons for a glow plug light that comes on on your Volkswagen ID.4 without you feeling any difference in power or car behaviour. Generally, 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 fix the problem.
  • You have a false contact somewhere in your electrical circuit, test out the other alternatives first because it is not easy to find it alone, we suggest you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • In the event that you have any additional questions about the Volkswagen ID.4, do not hesitate to consult our Volkswagen ID.4 category.