A new warning light on your dashboard? You don’t find out why it doesn’t shut off… It’s normal, an auto is complex and there are many causes why a light may come on. If it turns out your glow plug light comes on while driving your Volkswagen Golf 6, it might point out different problems. In this post, we will do everything we can to support you see things more clearly. First, we will see how the preheating light on your Volkswagen Golf 6 functions, and then the different causes it lights up when you are driving

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What is the purpose of my Volkswagen Golf 6 glow plug light?

The main 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 Volkswagen Golf 6 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 meant to stay or come on while driving with your car. But, if it comes on while driving, it may show several issues, we will try to describe the most important ones.

What to do if the glow plug light comes on while driving on my Volkswagen Golf 6?

A glow light that comes on while driving on your Volkswagen Golf 6 or at any other time other than when the engine is started is designed to inform you to a problem other than your spark plugs, we will check out this now. Whatever the case, a switch to the diagnostic tool will allow you to precisely translate the motive for the light up of your glow light.

My Volkswagen Golf 6 glow light comes on and I’m encountering a loss of power

The first probability is that you recognize that your glow plug light comes on while driving your Volkswagen Golf 6 and that you also knowledge a loss of power. In such a case, different concerns can demonstrate its lightning. Here is a list of the most important causes:

  • 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 obvious that your preheat light comes on while driving on Volkswagen Golf 6 because it is one of the issue of which it is supposed to notify you. Have the status of your valve examined
  • Issue 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 perturbation in the operation of the turbo.
  • Issue 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 disrupt its proper performance.
  • Finally, the last trouble that could lead to a glow indicator light on your Volkswagen Golf 6 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 Volkswagen Golf 6

Finally, we’ll give you the causes for a glow plug light that comes on on your Volkswagen Golf 6 without you feeling any difference in power or car behaviour. Generally, 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 solve the trouble.
  • You have a false contact somewhere in your electrical circuit, test the other solutions first because it is not easy to find it alone, we recommend you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error

    • To discover more tips on the Volkswagen Golf 6, take a look at the Volkswagen Golf 6 category.