A new warning light on your dashboard? You don’t find out why it doesn’t shut off… It’s normal, a vehicle is complicated and there are various motives why a light might come on. If your glow plug light comes on while driving your Renault Espace 4, it might indicate several things. On this page, we will do anything we can to help you see things more clearly. First, we will see how the preheating light on your Renault Espace 4 works, and then the different causes it lights up when you are driving

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What is the purpose of my Renault Espace 4 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 assure that your glow plugs are working properly. Indeed, it must light up when you switch on your Renault Espace 4 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 supposed to stay or come on while driving with your vehicle. Nevertheless, if it turns on while driving, it may reveal multiple troubles, we will try to point out the main ones.

What to do if the glow plug light comes on while driving on my Renault Espace 4?

A glow light that comes on while driving on your Renault Espace 4 or at any other time other than when the engine is started is meant to alert you to a fault other than your spark plugs, we will take a look at this right now. In any case, connecting your vehicle to the diagnostic tool will allow you to accurately translate the motive for the light up of your glow light.

My Renault Espace 4 glow light comes on and I’m experiencing a loss of power

The first probability is that you perceive that your glow plug light comes on while driving your Renault Espace 4 and that you also knowledge a loss of power. In such a case, several complications can explain its lightning. Here is a list of the main motives:

  • 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 expected that your preheat light comes on while driving on Renault Espace 4 because it is one of the issue of which it is designed to notify you. Have the status of your valve examined
  • Problem 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 disturbance in the performance of the turbo.
  • Problem relevant to the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that disturb its proper function.
  • Finally, the last trouble that could lead to a glow indicator light on your Renault Espace 4 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 Renault Espace 4

To finish , we’ll give you the causes for a glow plug light that comes on on your Renault Espace 4 without you feeling any difference in power or vehicle behaviour. Generally, this is an electronic fault:

  • Glow plug relays or fuses to be changed, 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 resolve the trouble.
  • 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 encourage you to go to your auto mechanic.
  • Faulty injection pressure sensor, ECU error
  • If you need more tutorials on the Renault Espace 4, go to our Renault Espace 4 category.