A new warning light on your dashboard? You don’t understand why it doesn’t switch off… It’s normal, an auto is complex and there are many causes why a light may come on. If it turns out your glow plug light comes on while driving your Citroen C15, it may possibly signify several concerns. 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 Citroen C15 works, and then the different reasons it lights up when you are driving

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What is the purpose of my Citroen C15 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 make sure that your glow plugs are working properly. Indeed, it must light up when you switch on your Citroen C15 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 automobile. Nevertheless, if it turns on while driving, it may suggest multiple issues, we will try to summarize the most important ones.

What to do if the glow plug light comes on while driving on my Citroen C15?

A glow light that comes on while driving on your Citroen C15 or at any other time other than when the engine is started is intended to alert you to a fault other than your spark plugs, we will check out this now. No matter the reason, a switch to the diagnostic tool will allow you to properly translate the cause for the light up of your glow light.

My Citroen C15 glow light comes on and I’m having a loss of power

The first probability is that you identify that your glow plug light comes on while driving your Citroen C15 and that you also encounter a loss of power. In this instance, several complications can explain its lightning. Here is a list of the most important causes:

  • Trouble of EGR valve, indeed, if you go through a loss of power, it is possible that your EGR valve is blocked, in this case, it is obvious that your preheat light comes on while driving on Citroen C15 because it is one of the failures of which it is supposed to notify you. Have the status of your valve tested
  • Trouble associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can lead to turbo boost and a disturbance in the performance of the turbo.
  • Trouble 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 affect its proper operation.
  • Finally, the last issue that could lead to a glow indicator light on your Citroen C15 coupled with a loss of power, is that your fuel filter is too dirty, you should 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 Citroen C15

To finish , we’ll give you the reasons for a glow plug light that comes on on your Citroen C15 without you feeling any difference in power or automobile 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 get rid of the issue.
  • 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 advise you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

    • If you need more tutorials on the Citroen C15, go to our Citroen C15 category.