A new warning light on your dashboard? You don’t understand why it doesn’t switch off… It’s normal, a vehicle is complicated and there are many reasons why a light might come on. In cases where your glow plug light comes on while driving your Volkswagen Touran 2, it may indicate different issues. In this article, we will do anything we can to help you see things more clearly. First, we will find out how the preheating light on your Volkswagen Touran 2 works, and then the different explanations it lights up when you are driving

glow-plug-light-volkswagen-touran-2

What is the purpose of my Volkswagen Touran 2 glow plug light?

The primary goal of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to ensure that your glow plugs are working properly. In reality, it must light up when you switch on your Volkswagen Touran 2 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. But, if it comes on while driving, it may reveal different failures, we will try to describe the main ones.

What to do if the glow plug light comes on while driving on my Volkswagen Touran 2?

A glow light that comes on while driving on your Volkswagen Touran 2 or at any other time other than when the engine is started is intended to inform you to a problem other than your spark plugs, we will look at this right now. Whatever the case, connecting your vehicle to the diagnostic tool will allow you to carefully interpret the cause for the light up of your glow light.

My Volkswagen Touran 2 glow light comes on and I’m suffering from a loss of power

The first possibility is that you identify that your glow plug light comes on while driving your Volkswagen Touran 2 and that you also encounter a loss of power. In such a case, different problems can describe its presence. Here is a list of the main reasons:

  • Issue of EGR valve, in fact, if you go through a loss of power, it is possible that your EGR valve is blocked, in this instance, it is rational that your preheat light comes on while driving on Volkswagen Touran 2 because it is one of the issue of which it is expected to warn you. Have the status of your valve checked out
  • Issue associated with 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 perturbation in the operation of the turbo.
  • Issue related to the injection, either an injector that has seized up or the injection pump that is destroyed by filings or other possible foreign bodies that disturb its proper functioning.
  • Finally, the last trouble that could lead to a glow indicator light on your Volkswagen Touran 2 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 Volkswagen Touran 2

Finally, we’ll give you the explanations for a glow plug light that comes on on your Volkswagen Touran 2 without you feeling any difference in power or automobile 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 fix the trouble.
  • You have a false contact somewhere in your electrical circuit, test 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

    • To discover more tips on the Volkswagen Touran 2, take a look at the Volkswagen Touran 2 category.