If the oil light on your Audi A3 turns on, you have to be concerned. It means a potential failure that could affect your Audi A3 or even put you in danger so be vigilant and very responsive.
In this article, we want to try to provide you with an answer so that you can understand the ins and outs of this sight and thus correct the situation.Oil-indicator-lights-up-audi-a3

What does the oil sight glass look like on your Audi A3?

First of all, it is important to identify this indicator on your Audi A3. It is red in colour and represents a small burette with a drop on the right. Like all red lights, this suggests that that you must stop your Audi A3 as soon as possible. To make sure it works, you will see it turn on when you turn the ignition. If it does not light up, your indicator light is defective.
Do not confuse this light with the almost identical yellow one. This one indicates that you are almost certainly short of oil.

What is the purpose of the oil indicator light that lights up on your Audi A3?

Now, we want to explain to you what it is for and why it is essential. As opposed to what we may think, it has nothing to do with the oil level in your Audi A3. What is more, it is there to report a loss of pressure in this engine oil, which can very fast damage or even destroy your Audi A3’s engine. That’s why as soon as it appears on your vehicle, you must stop the car.
then, we will explain to you what this oil is used for in your Audi A3’s engine. It works with a set of metal parts, which are regularly in contact and therefore need replacing. The oil under pressure therefore ensures the lubrication of these parts to stop them from being damaged. Otherwise, it also serves to cool them down since they heat up quickly when you drive your Audi A3. Finally, the oil also cleans and circulates dirt that could damage your engine.
You must therefore ensure that the engine oil pressure is always maintained at its recommended level for your Audi A3. This represents 1 bar at standstill and about 5 bars at high speed. In a logical way, when the pressure does not reach 1 bar, a sensor should signal it by lighting the warning light that should alert you.

Faults that trigger the ignition of the oil sight glass on your Audi A3:

Three factors could trigger the ignition of this light. First, the most likely, if the oil pump is faulty. It no longer fulfils its function of keeping up oil pressure in the engine. If this is the case, we would suggest that you go to a garage because only a professional can make an accurate diagnosis on your Audi A3.
Secondly, if you run out of oil, the pressure could drop. Same impact with low pressure, the red LED lights up. So what you have to do is add more oil. The last, rarer case is a defective pressure sensor that can no more detect the pressure properly and therefore delivers incorrect information. In this case, it is also necessary to call upon a professional for your Audi A3 as he will have the pressure control equipment and will be able to tell you exactly what it is.

Conclusion :

So now you know what this light is for and what the related failures are on your Audi A3. Once again, be extremely cautious when a red light comes on as they stand for a real immediate danger to your Audi A3 and especially to passengers.

To find more tips on the Audi A3, take a look at the Audi A3 category.