A new warning light on your dashboard? You don’t figure out why it doesn’t turn off… It’s typical, an auto is complex and there are many factors why a light may come on. If it turns out your glow plug light comes on while driving your PORSCHE PANAMERA, it might suggest different concerns. In the following paragraphs, we will do anything we can to support you see things more clearly. First, we will see how the preheating light on your PORSCHE PANAMERA operates, and then the different causes it lights up when you are driving

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What is the role of my PORSCHE PANAMERA glow plug light?

The main purpose of the engine glow plug light, which is generally represented by a yellow coil, is to guarantee that your glow plugs are working correctly. Indeed, it must light up when you switch on your PORSCHE PANAMERA 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 motor vehicle. However, if it comes on while driving, it may show several issues, we will try to point out the main ones.

What to do if the glow plug light comes on while driving on my PORSCHE PANAMERA?

A glow light that comes on while driving on your PORSCHE PANAMERA or at any other time other than when the engine is started is intended to alert you to a problem other than your spark plugs, we will look at this now. No matter the reason, connecting your vehicle to the diagnostic tool will allow you to carefully interpret the cause for the light up of your glow light.

My PORSCHE PANAMERA glow light comes on and I’m experiencing a loss of power

The first situation is that you perceive that your glow plug light comes on while driving your PORSCHE PANAMERA and that you also encounter a loss of power. In such a case, different problems can explain its lightning. Here is a list of the main factors:

  • Issue of EGR valve, indeed, if you undergo a loss of power, it is possible that your EGR valve is blocked, in this instance, it is rational that your preheat light comes on while driving on PORSCHE PANAMERA because it is one of the problem of which it is supposed to alert you. Have the status of your valve tested
  • Trouble 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 perturbation in the operation of the turbo.
  • Trouble linked to 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 performance.
  • Finally, the last issue that could lead to a glow indicator light on your PORSCHE PANAMERA 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 PORSCHE PANAMERA

To conclude, we’ll give you the causes for a glow plug light that comes on on your PORSCHE PANAMERA without you feeling any difference in power or motor vehicle behaviour. In most cases, this is an electronic problem:

  • Glow plug relays or fuses to be swapped out, 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, check the other solutions 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 perhaps you have any further questions about the PORSCHE PANAMERA, do not hesitate to consult our PORSCHE PANAMERA category.