A new light on your dashboard? You don’t figure out why it doesn’t turn off… It’s normal, a car is elaborate and there are various reasons why a light could come on. In cases where your glow plug light comes on while driving your Citroen C6, it may suggest several problems. In this article, we will do everything we can to support you see things more clearly. First, we will find out how the preheating light on your Citroen C6 functions, and then the different motives it lights up when you are driving

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What is the purpose of my Citroen C6 glow plug light?

The primary goal of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to ensure that your glow plugs are working properly. Indeed, it must light up when you switch on your Citroen C6 to tell you that they are heating the intake air in your cylinders and must go out after a few moments when the engine is running. This preheat light is therefore not meant to stay or come on while driving with your motor vehicle. Nevertheless, if it turns on while driving, it may indicate several failures, we will try to summarize the main ones.

What to do if the glow plug light comes on while driving on my Citroen C6?

A glow light that comes on while driving on your Citroen C6 or at any other time other than when the engine is started is designed to inform you to a problem 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 precisely understand the motive for the light up of your glow light.

My Citroen C6 glow light comes on and I’m going through a loss of power

The first probability is that you detect that your glow plug light comes on while driving your Citroen C6 and that you also encounter a loss of power. In this instance, several trouble can describe its lightning. Here is a list of the main reasons:

  • Issue of EGR valve, indeed, if you are affected a loss of power, it is possible that your EGR valve is blocked, in such a case, it is expected that your preheat light comes on while driving on Citroen C6 because it is one of the problem of which it is expected to warn you. Have the status of your valve checked out
  • Trouble associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can cause turbo boost and a perturbation in the performance of the turbo.
  • Trouble relevant 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 functioning.
  • Finally, the last problem that could lead to a glow indicator light on your Citroen C6 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 C6

To finish , we’ll give you the motives for a glow plug light that comes on on your Citroen C6 without you feeling any difference in power or motor vehicle behaviour. Generally, 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 get rid of 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 advise you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error

    • If perhaps you have any additional questions about the Citroen C6, do not hesitate to consult our Citroen C6 category.