A new warning light on your dashboard? You don’t understand why it doesn’t turn off… It’s typical, an auto is complicated and there are various motives why a light could occur. If it turns out your glow plug light comes on while driving your Audi Sq5, it might show several concerns. In the following paragraphs, we will do everything we can to help you see things more clearly. First, we will see how the preheating light on your Audi Sq5 functions, and then the different reasons it lights up when you are driving

glow-plug-light-audi-sq5

What is the purpose of my Audi Sq5 glow plug light?

The main purpose of the engine glow plug light, which is generally 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 Audi Sq5 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 vehicle. But, if it comes on while driving, it may indicate 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 Audi Sq5?

A glow light that comes on while driving on your Audi Sq5 or at any other time other than when the engine is started is designed to inform you to a fault other than your spark plugs, we will look at this now. Whatever the case, a switch to the diagnostic tool will allow you to properly translate the explanation for the light up of your glow light.

My Audi Sq5 glow light comes on and I’m experiencing a loss of power

The first probability is that you recognize that your glow plug light comes on while driving your Audi Sq5 and that you also encounter a loss of power. In this instance, several concerns can explain its presence. Here is a list of the most important motives:

  • Trouble of EGR valve, in reality, if you suffer a loss of power, it is possible that your EGR valve is blocked, in this case, it is obvious that your preheat light comes on while driving on Audi Sq5 because it is one of the issue of which it is intended 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 control the turbo intake pressure, which can result in turbo boost and a disturbance in the performance of the turbo.
  • Problem 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 function.
  • Finally, the last issue that could lead to a glow indicator light on your Audi Sq5 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 Audi Sq5

To finish , we’ll give you the reasons for a glow plug light that comes on on your Audi Sq5 without you feeling any difference in power or vehicle behaviour. In general, 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 out the other options first because it is not easy to find it alone, we suggest you to go to your repair shop.
  • Faulty injection pressure sensor, ECU error

    • If you wish more tutorials on the Audi Sq5, go to our Audi Sq5 category.