A new light on your dashboard? You don’t understand why it doesn’t turn off… It’s normal, a car is complex and there are various factors why a light may occur. If it turns out your glow plug light comes on while driving your Renault Master 3, it may show different concerns. In this post, we will do anything we can to help you see things more clearly. First, we will see how the preheating light on your Renault Master 3 functions, and then the different causes it lights up when you are driving

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What is the purpose of my Renault Master 3 glow plug light?

The primary goal of the engine glow plug light, which is in most cases 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 Renault Master 3 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 meant to stay or come on while driving with your vehicle. Nevertheless, if it turns on while driving, it may suggest different troubles, we will try to describe the main ones.

What to do if the glow plug light comes on while driving on my Renault Master 3?

A glow light that comes on while driving on your Renault Master 3 or at any other time other than when the engine is started is intended to notify you to a problem other than your spark plugs, we will check out this right now. No matter the reason, connecting your vehicle to the diagnostic tool will allow you to carefully translate the cause for the light up of your glow light.

My Renault Master 3 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 Renault Master 3 and that you also knowledge a loss of power. In this case, different trouble can demonstrate its lightning. Here is a list of the main factors:

  • Issue of EGR valve, indeed, if you undergo a loss of power, it is possible that your EGR valve is clogged, in such a case, it is rational that your preheat light comes on while driving on Renault Master 3 because it is one of the failures of which it is designed to warn you. Have the status of your valve checked out
  • Problem 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 perturbation in the performance of the turbo.
  • Problem 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 disrupt its proper function.
  • Finally, the last issue that could lead to a glow indicator light on your Renault Master 3 coupled with a loss of power, is that your fuel filter is too dirty, you should come to 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 Renault Master 3

To conclude, we’ll give you the causes for a glow plug light that comes on on your Renault Master 3 without you feeling any difference in power or vehicle behaviour. In general, this is an electronic problem:

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

    • If you need more guides on the Renault Master 3, go to our Renault Master 3 category.