A new light on your dashboard? You don’t figure out why it doesn’t switch off… It’s normal, a vehicle is complicated and there are many reasons why a light might occur. In the event that your glow plug light comes on while driving your Citroen C3 Aircross, it may signal some concerns. On this page, we will do everything we can to help you see things more clearly. First, we will discover how the preheating light on your Citroen C3 Aircross works, and then the different explanations it lights up when you are driving

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What is the role of my Citroen C3 Aircross glow plug light?

The primary intent of the engine glow plug light, which is most of the time represented by a yellow coil, is to guarantee that your glow plugs are working effectively. Indeed, it must light up when you switch on your Citroen C3 Aircross 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 expected to stay or come on while driving with your vehicle. Nevertheless, if it turns on while driving, it may reveal different failures, we will try to detail the main ones.

What to do if the glow plug light comes on while driving on my Citroen C3 Aircross?

A glow light that comes on while driving on your Citroen C3 Aircross or at any other time other than when the engine is started is intended to inform you to a fault other than your spark plugs, we will look at this right now. Whatever the case, connecting your vehicle to the diagnostic tool will allow you to accurately translate the reason for the light up of your glow light.

My Citroen C3 Aircross glow light comes on and I’m encountering a loss of power

The first possibility is that you detect that your glow plug light comes on while driving your Citroen C3 Aircross and that you also encounter a loss of power. In such a case, some concerns can explain its presence. Here is a list of the main reasons:

  • Problem of EGR valve, indeed, if you go through a loss of power, it is possible that your EGR valve is clogged, in this case, it is expected that your preheat light comes on while driving on Citroen C3 Aircross because it is one of the problem of which it is meant to alert you. Have the status of your valve inspected
  • Issue related 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 operation of the turbo.
  • Issue in connection with 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 function.
  • Finally, the last trouble that could lead to a glow indicator light on your Citroen C3 Aircross coupled with a loss of power, is that your fuel filter is too dirty, you should get 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 C3 Aircross

Finally, we’ll give you the explanations for a glow plug light that comes on on your Citroen C3 Aircross without you feeling any difference in power or vehicle behaviour. In most cases, this is an electronic fault:

  • Glow plug relays or fuses to be swapped out, test and replace 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 trouble.
  • 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 repair shop.
  • Faulty injection pressure sensor, ECU error

    • If you have any additional questions about the Citroen C3 Aircross, do not hesitate to consult our Citroen C3 Aircross category.