A new warning light on your dashboard? You don’t understand why it doesn’t turn off… It’s normal, a vehicle is complicated and there are various reasons why a light might occur. In cases where your glow plug light comes on while driving your Bmw Serie 2 F23, it might show different issues. On this page, we will do everything we can to help you see things more clearly. First, we will find out how the preheating light on your Bmw Serie 2 F23 functions, and then the different reasons it lights up when you are driving

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What is the goal of my Bmw Serie 2 F23 glow plug light?

The main purpose of the engine glow plug light, which is most of the time symbolized by a yellow coil, is to make sure that your glow plugs are working effectively. Indeed, it must light up when you switch on your Bmw Serie 2 F23 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 supposed to stay or come on while driving with your automobile. However, if it turns on while driving, it may reveal multiple failures, we will try to explain the main ones.

What to do if the glow plug light comes on while driving on my Bmw Serie 2 F23?

A glow light that comes on while driving on your Bmw Serie 2 F23 or at any other time other than when the engine is started is designed to alert you to a problem other than your spark plugs, we will look at this right now. In any case, connecting your vehicle to the diagnostic tool will allow you to precisely interpret the cause for the light up of your glow light.

My Bmw Serie 2 F23 glow light comes on and I’m experiencing a loss of power

The first probability is that you perceive that your glow plug light comes on while driving your Bmw Serie 2 F23 and that you also experience a loss of power. In this case, different concerns can explain its presence. Here is a list of the main reasons:

  • Problem of EGR valve, in reality, if you suffer a loss of power, it is possible that your EGR valve is blocked, in such a case, it is expected that your preheat light comes on while driving on Bmw Serie 2 F23 because it is one of the failures of which it is designed to notify you. Have the status of your valve inspected
  • Problem linked to 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 relevant 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 disrupt its proper performance.
  • Finally, the last issue that could lead to a glow indicator light on your Bmw Serie 2 F23 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 Bmw Serie 2 F23

To finish , we’ll give you the reasons for a glow plug light that comes on on your Bmw Serie 2 F23 without you feeling any difference in power or automobile behaviour. Generally, this is an electronic problem:

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

    • If you want more guides on the Bmw Serie 2 F23, go to our Bmw Serie 2 F23 category.