A new light on your dashboard? You don’t find out why it doesn’t turn off… It’s normal, a car is complex and there are multiple motives why a light could occur. If your glow plug light comes on while driving your Volkswagen Caddy 3, it may possibly indicate several things. In this article, we will do anything we can to help you see things more clearly. First, we will find out how the preheating light on your Volkswagen Caddy 3 works, and then the different motives it lights up when you are driving

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What is the purpose of my Volkswagen Caddy 3 glow plug light?

The primary role of the engine glow plug light, which is generally represented by a yellow coil, is to guarantee that your glow plugs are working properly. In reality, it must light up when you switch on your Volkswagen Caddy 3 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. Nevertheless, if it comes on while driving, it may suggest different troubles, we will try to detail the main ones.

What to do if the glow plug light comes on while driving on my Volkswagen Caddy 3?

A glow light that comes on while driving on your Volkswagen Caddy 3 or at any other time other than when the engine is started is meant to alert you to a problem other than your spark plugs, we will take a look at this right now. In any case, a switch to the diagnostic tool will allow you to accurately interpret the explanation for the light up of your glow light.

My Volkswagen Caddy 3 glow light comes on and I’m having a loss of power

The first probability is that you detect that your glow plug light comes on while driving your Volkswagen Caddy 3 and that you also encounter a loss of power. In such a case, several trouble can demonstrate its presence. Here is a list of the main motives:

  • Problem of EGR valve, in fact, if you suffer a loss of power, it is possible that your EGR valve is clogged, in this case, it is rational that your preheat light comes on while driving on Volkswagen Caddy 3 because it is one of the problem of which it is designed to alert you. Have the status of your valve looked at
  • Issue associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can cause turbo boost and a perturbation in the operation of the turbo.
  • Issue linked to the injection, either an injector that has seized up or the injection pump that is broken by filings or other possible foreign bodies that affect its proper operation.
  • Finally, the last issue that could lead to a glow indicator light on your Volkswagen Caddy 3 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 Caddy 3

To conclude, we’ll give you the motives for a glow plug light that comes on on your Volkswagen Caddy 3 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 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 resolve 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 auto mechanic.
  • Faulty injection pressure sensor, ECU error

    • To discover more tips on the Volkswagen Caddy 3, take a look at the Volkswagen Caddy 3 category.