A new warning light on your dashboard? You don’t figure out why it doesn’t turn off… It’s normal, an automobile is complicated and there are many causes why a light could come on. If it turns out your glow plug light comes on while driving your Peugeot 208, it may indicate different concerns. In this article, we will do everything we can to support you see things more clearly. First, we will see how the preheating light on your Peugeot 208 works, and then the different explanations it lights up when you are driving

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What is the purpose of my Peugeot 208 glow plug light?

The primary purpose of the engine glow plug light, which is generally symbolized by a yellow coil, is to assure that your glow plugs are working properly. In fact, it must light up when you switch on your Peugeot 208 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 vehicle. However, if it comes on while driving, it may reveal 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 Peugeot 208?

A glow light that comes on while driving on your Peugeot 208 or at any other time other than when the engine is started is meant to alert you to a problem other than your spark plugs, we will take a look at this right now. In any case, plug in your car to the diagnostic tool will allow you to properly understand the explanation for the light up of your glow light.

My Peugeot 208 glow light comes on and I’m encountering a loss of power

The first possibility is that you perceive that your glow plug light comes on while driving your Peugeot 208 and that you also encounter a loss of power. In this instance, different concerns can demonstrate its presence. Here is a list of the most important causes:

  • Issue of EGR valve, in reality, if you are affected a loss of power, it is possible that your EGR valve is clogged, in this instance, it is obvious that your preheat light comes on while driving on Peugeot 208 because it is one of the issue of which it is supposed to notify you. Have the status of your valve tested
  • Problem linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can bring about 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 broken by filings or other possible foreign bodies that affect its proper performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Peugeot 208 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 Peugeot 208

To conclude, we’ll give you the explanations for a glow plug light that comes on on your Peugeot 208 without you feeling any difference in power or vehicle behaviour. In general, this is an electronic problem:

  • 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 solutions first because it is not easy to find it alone, we suggest you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error
  • To find more tips on the Peugeot 208, take a look at the Peugeot 208 category.