A new warning light on your dashboard? You don’t understand why it doesn’t switch off… It’s typical, a vehicle is complex and there are various causes why a light might occur. If it turns out your glow plug light comes on while driving your Citroen C1, it might point out different things. In the following paragraphs, we will do everything we can to help you see things more clearly. First, we will see how the preheating light on your Citroen C1 operates, and then the different causes it lights up when you are driving

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What is the goal of my Citroen C1 glow plug light?

The primary role 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. In fact, it must light up when you switch on your Citroen C1 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 vehicle. Nevertheless, if it turns on while driving, it may show multiple failures, we will try to summarize the main ones.

What to do if the glow plug light comes on while driving on my Citroen C1?

A glow light that comes on while driving on your Citroen C1 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 check out this now. In any case, connecting your vehicle to the diagnostic tool will allow you to carefully understand the cause for the light up of your glow light.

My Citroen C1 glow light comes on and I’m encountering a loss of power

The first probability is that you identify that your glow plug light comes on while driving your Citroen C1 and that you also knowledge a loss of power. In this instance, different concerns can describe its lightning. Here is a list of the main causes:

  • Problem of EGR valve, indeed, if you are affected a loss of power, it is possible that your EGR valve is clogged, in this instance, it is obvious that your preheat light comes on while driving on Citroen C1 because it is one of the problem of which it is expected 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 operation of the turbo.
  • Trouble 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 function.
  • Finally, the last problem that could lead to a glow indicator light on your Citroen C1 coupled with a loss of power, is that your fuel filter is too dirty, you should experience 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 C1

To conclude, we’ll give you the causes for a glow plug light that comes on on your Citroen C1 without you feeling any difference in power or vehicle behaviour. In most cases, this is an electronic problem:

  • Glow plug relays or fuses to be replaced, 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 problem.
  • You have a false contact somewhere in your electrical circuit, check the other solutions first because it is not easy to find it alone, we recommend you to go to your auto technician.
  • Faulty injection pressure sensor, ECU error

    • To get more tips on the Citroen C1, take a look at the Citroen C1 category.