A new light on your dashboard? You don’t figure out why it doesn’t turn off… It’s normal, an auto is complex and there are many factors why a light may occur. If your glow plug light comes on while driving your Volkswagen California, it may possibly signify several things. On this page, we will do anything we can to help you see things more clearly. First, we will see how the preheating light on your Volkswagen California works, and then the different motives it lights up when you are driving

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What is the purpose of my Volkswagen California glow plug light?

The primary intent of the engine glow plug light, which is in most cases represented by a yellow coil, is to guarantee that your glow plugs are working properly. Indeed, it must light up when you switch on your Volkswagen California 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 vehicle. But, if it turns on while driving, it may suggest different issues, we will try to summarize the most important ones.

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

A glow light that comes on while driving on your Volkswagen California or at any other time other than when the engine is started is meant to notify you to a problem other than your spark plugs, we will take a look at this now. In any case, a switch to the diagnostic tool will allow you to precisely interpret the reason for the light up of your glow light.

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

The first situation is that you detect that your glow plug light comes on while driving your Volkswagen California and that you also encounter a loss of power. In such a case, several concerns can demonstrate its lightning. Here is a list of the most important factors:

  • Problem of EGR valve, in reality, if you suffer a loss of power, it is possible that your EGR valve is clogged, in this instance, it is expected that your preheat light comes on while driving on Volkswagen California because it is one of the failures of which it is expected to warn you. Have the status of your valve tested
  • Trouble linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can lead to turbo boost and a disturbance in the performance of the turbo.
  • Trouble associated with the injection, either an injector that has seized up or the injection pump that is broken by filings or other possible foreign bodies that disrupt its proper function.
  • Finally, the last issue that could lead to a glow indicator light on your Volkswagen California 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 California

Finally, we’ll give you the motives for a glow plug light that comes on on your Volkswagen California without you feeling any difference in power or vehicle behaviour. Generally, this is an electronic problem:

  • Glow plug relays or fuses to be swapped out, 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 issue.
  • You have a false contact somewhere in your electrical circuit, check the other alternatives first because it is not easy to find it alone, we encourage you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • If you want more guides on the Volkswagen California, go to our Volkswagen California category.