A new warning light on your dashboard? You don’t find out why it doesn’t shut off… It’s normal, a vehicle is complicated and there are multiple causes why a light might occur. In the event that your glow plug light comes on while driving your Bmw 1 series, it may possibly suggest some problems. On this page, we will do anything we can to support you see things more clearly. First, we will find out how the preheating light on your Bmw 1 series works, and then the different reasons it lights up when you are driving

glow-plug-light-bmw-1-series

What is the purpose of my Bmw 1 series glow plug light?

The main purpose of the engine glow plug light, which is generally represented by a yellow coil, is to ensure that your glow plugs are working correctly. In fact, it must light up when you switch on your Bmw 1 series 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 car. But, if it turns on while driving, it may indicate multiple issues, we will try to point out the main ones.

What to do if the glow plug light comes on while driving on my Bmw 1 series?

A glow light that comes on while driving on your Bmw 1 series or at any other time other than when the engine is started is designed to warn you to a problem other than your spark plugs, we will check out this now. Whatever the case, a switch to the diagnostic tool will allow you to accurately understand the explanation for the light up of your glow light.

My Bmw 1 series glow light comes on and I’m having a loss of power

The first possibility is that you identify that your glow plug light comes on while driving your Bmw 1 series and that you also knowledge a loss of power. In this instance, some complications can describe its lightning. Here is a list of the main causes:

  • Issue of EGR valve, in reality, if you go through a loss of power, it is possible that your EGR valve is blocked, in this case, it is logical that your preheat light comes on while driving on Bmw 1 series because it is one of the failures of which it is meant to notify you. Have the status of your valve examined
  • Trouble linked to the turbo overflow valve, in this situation the ECU can no longer control the turbo intake pressure, which can bring about turbo boost and a disturbance in the operation of the turbo.
  • Trouble relevant to the injection, either an injector that has seized up or the injection pump that is destroyed by filings or other possible foreign bodies that disturb its proper performance.
  • Finally, the last issue that could lead to a glow indicator light on your Bmw 1 series coupled with a loss of power, is that your fuel filter is too dirty, you should get 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 1 series

To finish , we’ll give you the reasons for a glow plug light that comes on on your Bmw 1 series without you feeling any difference in power or car behaviour. In most cases, this is an electronic problem:

  • 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 solve the issue.
  • You have a false contact somewhere in your electrical circuit, check 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 wish more tutorials on the Bmw 1 series, go to our Bmw 1 series category.