A new warning light on your dashboard? You don’t find out why it doesn’t switch off… It’s typical, a car is complicated and there are various reasons why a light could occur. In the event that your glow plug light comes on while driving your Volkswagen Multivan, it may possibly signal several concerns. On this page, we will do everything we can to support you see things more clearly. First, we will discover how the preheating light on your Volkswagen Multivan works, and then the different reasons it lights up when you are driving

glow-plug-light-volkswagen-multivan

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

The main goal of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to assure that your glow plugs are working correctly. In fact, it must light up when you switch on your Volkswagen Multivan 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 comes on while driving, it may show different issues, we will try to detail the most important ones.

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

A glow light that comes on while driving on your Volkswagen Multivan or at any other time other than when the engine is started is intended to inform you to a fault other than your spark plugs, we will take a look at this right now. Whatever the case, a switch to the diagnostic tool will allow you to properly interpret the cause for the light up of your glow light.

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

The first probability is that you identify that your glow plug light comes on while driving your Volkswagen Multivan and that you also knowledge a loss of power. In this instance, several problems can explain its lightning. Here is a list of the most important reasons:

  • Problem of EGR valve, indeed, if you undergo a loss of power, it is possible that your EGR valve is blocked, in such a case, it is rational that your preheat light comes on while driving on Volkswagen Multivan because it is one of the problem of which it is intended to notify you. Have the status of your valve inspected
  • Issue 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 disturbance in the performance of the turbo.
  • Issue in connection 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 disturb its proper functioning.
  • Finally, the last problem that could lead to a glow indicator light on your Volkswagen Multivan coupled with a loss of power, is that your fuel filter is too dirty, you should 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 Multivan

Finally, we’ll give you the reasons for a glow plug light that comes on on your Volkswagen Multivan without you feeling any difference in power or vehicle behaviour. In general, this is an electronic fault:

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

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