A new light on your dashboard? You don’t understand why it doesn’t switch off… It’s normal, a vehicle is elaborate and there are multiple motives why a light might occur. In the event that your glow plug light comes on while driving your Bmw Serie 4 F33, it may possibly reveal some issues. On this page, we will do everything we can to support you see things more clearly. First, we will see how the preheating light on your Bmw Serie 4 F33 operates, and then the different causes it lights up when you are driving

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What is the purpose of my Bmw Serie 4 F33 glow plug light?

The main role of the engine glow plug light, which is most of the time represented by a yellow coil, is to ensure that your glow plugs are working properly. In fact, it must light up when you switch on your Bmw Serie 4 F33 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 automobile. Nevertheless, if it turns on while driving, it may show multiple issues, we will try to summarize the most important ones.

What to do if the glow plug light comes on while driving on my Bmw Serie 4 F33?

A glow light that comes on while driving on your Bmw Serie 4 F33 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 check out this right now. No matter the reason, a switch to the diagnostic tool will allow you to properly interpret the cause for the light up of your glow light.

My Bmw Serie 4 F33 glow light comes on and I’m suffering from a loss of power

The first probability is that you identify that your glow plug light comes on while driving your Bmw Serie 4 F33 and that you also knowledge a loss of power. In such a case, some concerns can explain its presence. Here is a list of the most important motives:

  • Problem of EGR valve, in fact, if you go through a loss of power, it is possible that your EGR valve is clogged, in such a case, it is logical that your preheat light comes on while driving on Bmw Serie 4 F33 because it is one of the issue of which it is designed to alert you. Have the status of your valve looked at
  • 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 operation of the turbo.
  • Issue associated with the injection, either an injector that has seized up or the injection pump that is damaged by filings or other possible foreign bodies that disturb its proper performing.
  • Finally, the last issue that could lead to a glow indicator light on your Bmw Serie 4 F33 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 Bmw Serie 4 F33

To finish , we’ll give you the causes for a glow plug light that comes on on your Bmw Serie 4 F33 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 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 get rid of the issue.
  • You have a false contact somewhere in your electrical circuit, test 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
  • If you want more guides on the Bmw Serie 4 F33, go to our Bmw Serie 4 F33 category.