A new warning light on your dashboard? You don’t understand why it doesn’t shut off… It’s normal, an automobile is complex and there are many reasons why a light may come on. If it turns out your glow plug light comes on while driving your Volkswagen Coccinelle, it may possibly suggest different concerns. In this post, we will do everything we can to help you see things more clearly. First, we will discover how the preheating light on your Volkswagen Coccinelle functions, and then the different motives it lights up when you are driving

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What is the goal of my Volkswagen Coccinelle glow plug light?

The main purpose of the engine glow plug light, which is generally represented by a yellow coil, is to assure that your glow plugs are working correctly. In reality, it must light up when you switch on your Volkswagen Coccinelle 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 motor vehicle. However, if it turns on while driving, it may show several troubles, we will try to detail the most important ones.

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

A glow light that comes on while driving on your Volkswagen Coccinelle or at any other time other than when the engine is started is intended to alert you to a problem other than your spark plugs, we will take a look at this right now. In any case, plug in your car to the diagnostic tool will allow you to accurately interpret the explanation for the light up of your glow light.

My Volkswagen Coccinelle 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 Coccinelle and that you also experience a loss of power. In this instance, different concerns can demonstrate its presence. Here is a list of the most important reasons:

  • Issue of EGR valve, indeed, if you are affected a loss of power, it is possible that your EGR valve is clogged, in such a case, it is expected that your preheat light comes on while driving on Volkswagen Coccinelle because it is one of the problem of which it is expected to alert you. Have the status of your valve tested
  • Issue linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can bring about turbo boost and a disturbance in the performance of the turbo.
  • Issue relevant to the injection, either an injector that has seized up or the injection pump that is malfunctioned by filings or other possible foreign bodies that affect its proper performance.
  • Finally, the last issue that could lead to a glow indicator light on your Volkswagen Coccinelle coupled with a loss of power, is that your fuel filter is too dirty, you should come to 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 Coccinelle

To conclude, we’ll give you the motives for a glow plug light that comes on on your Volkswagen Coccinelle without you feeling any difference in power or motor vehicle behaviour. In general, this is an electronic problem:

  • Glow plug relays or fuses to be replaced, 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 solve 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 recommend you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error
  • If you want more guides on the Volkswagen Coccinelle, go to our Volkswagen Coccinelle category.