A new light on your dashboard? You don’t figure out why it doesn’t shut off… It’s normal, a vehicle is elaborate and there are various causes why a light may come on. If your glow plug light comes on while driving your Bmw Serie 2, it might show some issues. In the following paragraphs, we will do everything we can to help you see things more clearly. First, we will discover how the preheating light on your Bmw Serie 2 functions, and then the different explanations it lights up when you are driving

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

The primary purpose of the engine glow plug light, which is generally symbolized by a yellow coil, is to ensure that your glow plugs are working correctly. In reality, it must light up when you switch on your Bmw Serie 2 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 supposed to stay or come on while driving with your vehicle. Nevertheless, if it turns on while driving, it may indicate different issues, we will try to explain the most important ones.

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

A glow light that comes on while driving on your Bmw Serie 2 or at any other time other than when the engine is started is designed to notify you to a fault other than your spark plugs, we will look at this now. No matter the reason, plug in your car to the diagnostic tool will allow you to properly translate the reason for the light up of your glow light.

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

The first situation is that you identify that your glow plug light comes on while driving your Bmw Serie 2 and that you also knowledge a loss of power. In this case, some complications can explain its lightning. Here is a list of the most important causes:

  • Trouble of EGR valve, indeed, if you suffer a loss of power, it is possible that your EGR valve is clogged, in this case, it is obvious that your preheat light comes on while driving on Bmw Serie 2 because it is one of the issue of which it is supposed to warn you. Have the status of your valve checked out
  • Problem linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can cause turbo boost and a perturbation in the performance of the turbo.
  • Problem associated with the injection, either an injector that has seized up or the injection pump that is destroyed by filings or other possible foreign bodies that disrupt its proper operation.
  • Finally, the last issue that could lead to a glow indicator light on your Bmw Serie 2 coupled with a loss of power, is that your fuel filter is too dirty, you should experience 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

Finally, we’ll give you the explanations for a glow plug light that comes on on your Bmw Serie 2 without you feeling any difference in power or vehicle behaviour. Generally, 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 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 advise you to go to your technician.
  • Faulty injection pressure sensor, ECU error

    • If you have any further questions about the Bmw Serie 2, do not hesitate to consult our Bmw Serie 2 category.