A new light on your dashboard? You don’t understand why it doesn’t shut off… It’s normal, an auto is elaborate and there are many causes why a light might occur. If your glow plug light comes on while driving your Volkswagen Rabbit, it may possibly indicate different things. In this post, we will do everything we can to support you see things more clearly. First, we will discover how the preheating light on your Volkswagen Rabbit functions, and then the different motives it lights up when you are driving

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What is the role of my Volkswagen Rabbit glow plug light?

The primary intent of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to guarantee that your glow plugs are working correctly. In fact, it must light up when you switch on your Volkswagen Rabbit 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 vehicle. However, if it turns on while driving, it may show different issues, we will try to explain the main ones.

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

A glow light that comes on while driving on your Volkswagen Rabbit or at any other time other than when the engine is started is designed to notify you to a fault other than your spark plugs, we will take a look at this right now. In any case, connecting your vehicle to the diagnostic tool will allow you to properly interpret the motive for the light up of your glow light.

My Volkswagen Rabbit glow light comes on and I’m experiencing a loss of power

The first probability is that you recognize that your glow plug light comes on while driving your Volkswagen Rabbit and that you also encounter a loss of power. In this case, different problems can describe its lightning. Here is a list of the main causes:

  • Issue of EGR valve, indeed, if you are affected a loss of power, it is possible that your EGR valve is clogged, in this case, it is obvious that your preheat light comes on while driving on Volkswagen Rabbit because it is one of the failures of which it is expected to alert you. Have the status of your valve examined
  • Problem linked 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.
  • Problem 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 operation.
  • Finally, the last problem that could lead to a glow indicator light on your Volkswagen Rabbit coupled with a loss of power, is that your fuel filter is too dirty, you should encounter 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 Rabbit

To finish , we’ll give you the motives for a glow plug light that comes on on your Volkswagen Rabbit without you feeling any difference in power or vehicle 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 problem.
  • You have a false contact somewhere in your electrical circuit, check the other options first because it is not easy to find it alone, we suggest you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • In the event that you have any additional questions about the Volkswagen Rabbit, do not hesitate to consult our Volkswagen Rabbit category.