A new warning light on your dashboard? You don’t find out why it doesn’t shut off… It’s typical, an automobile is complex and there are many causes why a light may come on. If your glow plug light comes on while driving your Volkswagen CC, it might point out several things. On this page, we will do anything we can to support you see things more clearly. First, we will discover how the preheating light on your Volkswagen CC operates, and then the different motives it lights up when you are driving

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

The main role of the engine glow plug light, which is most of the time symbolized by a yellow coil, is to ensure that your glow plugs are working properly. In fact, it must light up when you switch on your Volkswagen CC 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 expected to stay or come on while driving with your automobile. However, if it comes on while driving, it may indicate several issues, we will try to point out the most important ones.

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

A glow light that comes on while driving on your Volkswagen CC or at any other time other than when the engine is started is meant to warn you to a problem other than your spark plugs, we will take a look at this right now. No matter the reason, plug in your car to the diagnostic tool will allow you to precisely translate the reason for the light up of your glow light.

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

The first situation is that you recognize that your glow plug light comes on while driving your Volkswagen CC and that you also encounter a loss of power. In this case, several trouble can explain its presence. Here is a list of the most important causes:

  • Trouble of EGR valve, in fact, if you go through a loss of power, it is possible that your EGR valve is blocked, in this case, it is logical that your preheat light comes on while driving on Volkswagen CC because it is one of the failures of which it is intended to warn you. Have the status of your valve examined
  • 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 performance of the turbo.
  • Issue associated with the injection, either an injector that has seized up or the injection pump that is malfunctioned by filings or other possible foreign bodies that disrupt its proper performing.
  • Finally, the last trouble that could lead to a glow indicator light on your Volkswagen CC coupled with a loss of power, is that your fuel filter is too dirty, you should get 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 CC

To conclude, we’ll give you the motives for a glow plug light that comes on on your Volkswagen CC 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 solve the trouble.
  • 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 advise you to go to your mechanic.
  • Faulty injection pressure sensor, ECU error

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