A new warning light on your dashboard? You don’t figure out why it doesn’t switch off… It’s normal, a vehicle is complicated and there are multiple factors why a light may come on. In the event that your glow plug light comes on while driving your Renault Twingo, it may possibly indicate different 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 Twingo operates, and then the different motives it lights up when you are driving

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What is the role of my Renault Twingo glow plug light?

The primary intent 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 correctly. Indeed, it must light up when you switch on your Renault Twingo 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 automobile. Nevertheless, if it comes on while driving, it may suggest different failures, we will try to summarize the most important ones.

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

A glow light that comes on while driving on your Renault Twingo or at any other time other than when the engine is started is intended to alert you to a fault other than your spark plugs, we will look at this now. No matter the reason, a switch to the diagnostic tool will allow you to precisely translate the cause for the light up of your glow light.

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

The first probability is that you perceive that your glow plug light comes on while driving your Renault Twingo and that you also encounter a loss of power. In this case, different concerns can describe its presence. Here is a list of the most important factors:

  • Trouble of EGR valve, in fact, if you are affected a loss of power, it is possible that your EGR valve is blocked, in such a case, it is logical that your preheat light comes on while driving on Renault Twingo because it is one of the failures of which it is meant to notify you. Have the status of your valve examined
  • Trouble related to the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can result in turbo boost and a disturbance in the operation of the turbo.
  • Trouble related to the injection, either an injector that has seized up or the injection pump that is broken by filings or other possible foreign bodies that disturb its proper performance.
  • Finally, the last issue that could lead to a glow indicator light on your Renault Twingo 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

To finish , we’ll give you the motives for a glow plug light that comes on on your Renault Twingo without you feeling any difference in power or automobile behaviour. In most cases, 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 issue.
  • You have a false contact somewhere in your electrical circuit, test out the other solutions first because it is not easy to find it alone, we advise you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error

    • To find more tips on the Renault Twingo, take a look at the Renault Twingo category.