A new light on your dashboard? You don’t understand why it doesn’t switch off… It’s normal, an auto 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 Twingo 2, it might indicate different concerns. On this page, we will do everything we can to support you see things more clearly. First, we will discover how the preheating light on your Renault Twingo 2 operates, and then the different explanations it lights up when you are driving

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What is the purpose of my Renault Twingo 2 glow plug light?

The primary intent of the engine glow plug light, which is in most cases represented by a yellow coil, is to ensure that your glow plugs are working effectively. Indeed, it must light up when you switch on your Renault Twingo 2 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 car. Nevertheless, if it comes on while driving, it may indicate different troubles, we will try to explain the main ones.

What to do if the glow plug light comes on while driving on my Renault Twingo 2?

A glow light that comes on while driving on your Renault Twingo 2 or at any other time other than when the engine is started is intended to notify you to a fault other than your spark plugs, we will check out this now. No matter the reason, plug in your car to the diagnostic tool will allow you to precisely understand the reason for the light up of your glow light.

My Renault Twingo 2 glow light comes on and I’m having a loss of power

The first possibility is that you perceive that your glow plug light comes on while driving your Renault Twingo 2 and that you also knowledge a loss of power. In this case, different concerns can demonstrate its presence. Here is a list of the main factors:

  • Trouble of EGR valve, in fact, if you undergo a loss of power, it is possible that your EGR valve is blocked, in this instance, it is logical that your preheat light comes on while driving on Renault Twingo 2 because it is one of the failures of which it is supposed 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 operation of the turbo.
  • Problem relevant 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 affect its proper function.
  • Finally, the last trouble that could lead to a glow indicator light on your Renault Twingo 2 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 Twingo 2

To conclude, we’ll give you the explanations for a glow plug light that comes on on your Renault Twingo 2 without you feeling any difference in power or car behaviour. Ordinarily, this is an electronic fault:

  • Glow plug relays or fuses to be swapped out, 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 trouble.
  • You have a false contact somewhere in your electrical circuit, test out the other options first because it is not easy to find it alone, we advise you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

    • If you wish more tutorials on the Renault Twingo 2, go to our Renault Twingo 2 category.