A new warning light on your dashboard? You don’t find out why it doesn’t switch off… It’s normal, a vehicle is complicated and there are many reasons why a light may occur. If it turns out your glow plug light comes on while driving your Renault Grand Espace, it might indicate several things. On this page, we will do anything we can to support you see things more clearly. First, we will discover how the preheating light on your Renault Grand Espace works, and then the different motives it lights up when you are driving

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What is the goal of my Renault Grand Espace glow plug light?

The main role of the engine glow plug light, which is generally represented by a yellow coil, is to guarantee that your glow plugs are working correctly. Indeed, it must light up when you switch on your Renault Grand Espace 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. However, if it turns on while driving, it may indicate different issues, we will try to detail the most important ones.

What to do if the glow plug light comes on while driving on my Renault Grand Espace?

A glow light that comes on while driving on your Renault Grand Espace or at any other time other than when the engine is started is designed to alert you to a fault other than your spark plugs, we will look at this right now. Whatever the case, a switch to the diagnostic tool will allow you to accurately interpret the motive for the light up of your glow light.

My Renault Grand Espace glow light comes on and I’m experiencing a loss of power

The first situation is that you perceive that your glow plug light comes on while driving your Renault Grand Espace and that you also experience a loss of power. In this case, several complications can demonstrate its presence. Here is a list of the most important reasons:

  • Issue of EGR valve, indeed, if you suffer a loss of power, it is possible that your EGR valve is blocked, in this instance, it is expected that your preheat light comes on while driving on Renault Grand Espace because it is one of the problem of which it is designed to notify you. Have the status of your valve looked at
  • Problem linked 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 disturbance in the performance of the turbo.
  • Problem in connection with the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that disrupt its proper performing.
  • Finally, the last problem that could lead to a glow indicator light on your Renault Grand Espace 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 Renault Grand Espace

To finish , we’ll give you the motives for a glow plug light that comes on on your Renault Grand Espace without you feeling any difference in power or automobile behaviour. In general, this is an electronic fault:

  • 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 solve the problem.
  • You have a false contact somewhere in your electrical circuit, check the other options first because it is not easy to find it alone, we encourage you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • In the event that you have any additional questions about the Renault Grand Espace, do not hesitate to consult our Renault Grand Espace category.