A new light on your dashboard? You don’t figure out why it doesn’t switch off… It’s typical, an automobile is complicated and there are multiple reasons why a light may come on. In the event that your glow plug light comes on while driving your Mercedes Vito, it may signal some problems. On this page, we will do everything we can to help you see things more clearly. First, we will discover how the preheating light on your Mercedes Vito operates, and then the different reasons it lights up when you are driving

glow-plug-light-mercedes-vito

What is the purpose of my Mercedes Vito glow plug light?

The main purpose of the engine glow plug light, which is in most cases symbolized by a yellow coil, is to guarantee that your glow plugs are working effectively. In fact, it must light up when you switch on your Mercedes Vito 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. Nevertheless, if it comes on while driving, it may reveal multiple troubles, we will try to summarize the most important ones.

What to do if the glow plug light comes on while driving on my Mercedes Vito?

A glow light that comes on while driving on your Mercedes Vito or at any other time other than when the engine is started is meant to alert you to a fault other than your spark plugs, we will check out this right now. No matter the reason, plug in your car to the diagnostic tool will allow you to accurately interpret the motive for the light up of your glow light.

My Mercedes Vito glow light comes on and I’m going through a loss of power

The first probability is that you detect that your glow plug light comes on while driving your Mercedes Vito and that you also knowledge a loss of power. In this case, some problems can describe its lightning. Here is a list of the most important reasons:

  • Issue of EGR valve, in fact, if you are affected a loss of power, it is possible that your EGR valve is blocked, in this instance, it is expected that your preheat light comes on while driving on Mercedes Vito because it is one of the failures of which it is supposed to notify you. Have the status of your valve tested
  • Problem associated with the turbo overflow valve, in this situation the ECU can no longer manage the turbo intake pressure, which can lead to turbo boost and a disturbance in the performance of the turbo.
  • Problem 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 Mercedes Vito 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 Mercedes Vito

To conclude, we’ll give you the reasons for a glow plug light that comes on on your Mercedes Vito without you feeling any difference in power or automobile behaviour. In general, this is an electronic fault:

  • 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 resolve the trouble.
  • You have a false contact somewhere in your electrical circuit, test out the other options first because it is not easy to find it alone, we recommend you to go to your auto technician.
  • Faulty injection pressure sensor, ECU error

    • Whenever you have any additional questions about the Mercedes Vito, do not hesitate to consult our Mercedes Vito category.