A new light on your dashboard? You don’t figure out why it doesn’t shut off… It’s typical, a vehicle is complex and there are multiple motives why a light might come on. In cases where your glow plug light comes on while driving your Citroen C8, it might point out several issues. In this article, we will do anything we can to help you see things more clearly. First, we will find out how the preheating light on your Citroen C8 functions, and then the different reasons it lights up when you are driving

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What is the purpose of my Citroen C8 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 properly. In reality, it must light up when you switch on your Citroen C8 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 automobile. However, if it turns on while driving, it may show multiple troubles, we will try to point out the most important ones.

What to do if the glow plug light comes on while driving on my Citroen C8?

A glow light that comes on while driving on your Citroen C8 or at any other time other than when the engine is started is meant to notify you to a fault other than your spark plugs, we will take a look at this right now. In any case, connecting your vehicle to the diagnostic tool will allow you to properly interpret the explanation for the light up of your glow light.

My Citroen C8 glow light comes on and I’m having a loss of power

The first situation is that you perceive that your glow plug light comes on while driving your Citroen C8 and that you also knowledge a loss of power. In this case, several problems can demonstrate its lightning. Here is a list of the most important motives:

  • Issue of EGR valve, in reality, 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 Citroen C8 because it is one of the issue of which it is intended to warn you. Have the status of your valve examined
  • Trouble linked to the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can bring about turbo boost and a perturbation in the performance of the turbo.
  • Trouble related to the injection, either an injector that has seized up or the injection pump that is destroyed by filings or other possible foreign bodies that affect its proper operation.
  • Finally, the last problem that could lead to a glow indicator light on your Citroen C8 coupled with a loss of power, is that your fuel filter is too dirty, you should encounter 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 Citroen C8

Finally, we’ll give you the reasons for a glow plug light that comes on on your Citroen C8 without you feeling any difference in power or automobile behaviour. Generally, this is an electronic fault:

  • Glow plug relays or fuses to be changed, 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 the other options first because it is not easy to find it alone, we encourage you to go to your auto technician.
  • Faulty injection pressure sensor, ECU error

    • To find more tips on the Citroen C8, take a look at the Citroen C8 category.