You have no idea why your Audi A4 has been stalling on its own for no apparent reason? It gets annoying very fast, specifically in the morning before leaving for work. In addition, this may eventually be a sign of a more sensitive issue than that. In this article, we will try to discuss the different potential causes so that you can identify and better understand it.
If this should happen at higher speeds, do not take any risks. Contact a specialist.
First of all, ask yourself if you have modified your habits towards your gas station. Have you changed lately and is this matches with the failures you describe? This is unlikely to be the reason, but it has happened before that the fuel you take for your Audi A4 has been in contact with impurities or water, making the mixture much less appropriate with your engine. This remains a rather rare case.
If this is cleared of cause, let us search at the other potential causes, first of all of the electronic aspect.stalls-by-itself-audi-a4

1: Electronic cases for a Audi A4 that stalls

Your MCU box, which handles a large amount of calculations within your Audi A4, may be defective, and as a result send incorrect data to your engine, making it unable to run properly. Another box, the BSI (Built-In System Interface). This one has a more complete role in your vehicle, as a centralizer of information sent by the various sensors of your Audi A4. It plays the roles of administrator , safety system, diagnosis, driving assistance, etc.. Let’s compare it to an exchange and regulation platform, such as an airport control tower. These two boxes are fundamental for the proper functioning of your engine, so it is very important to monitor them for your Audi A4.

Still on the electronic part, the alternator. This supplies electrical power to your motor. If this is insufficient, your engine may not run properly and stop.
Keep in mind that a simple deterioration of a wire, connection or component may have an impact on your whole Audi A4.
Here is a non-exhaustive list of electronic reasons that could cause you concern about your Audi A4. From now on, let’s try to see the mechanical failures.

2: Mechanical causes on your Audi A4

First of all, just think that dirty equipment can cause you problems when the solution is simple. Try to take a brief tour of your Audi A4 to see if everything is in good condition in terms of cleanliness. Example with a filter, pressure regulator or injection pump. Regular maintenance can drastically increase the life of your vehicle.

After that, an fundamental part of your Audi A4, the idle actuator. It regulates the engine speed of your Audi A4, which must be in line with the speed at which you drive.
If he is unable to do his job without error, the engine will be impacted and consequently could stop if he considers that a risk appears.
Keep in mind that the causes of a Audi A4 that stalls by itself can be very simple (e. g. parts fouling) and that it is not necessarily required to call a garage because you may sometimes have to pay more than required for your Audi A4’s breakdown. Be autonomous, at least to get an idea of what is going on, and as long as you consider that the failure is not manageable alone after different searches, then call on a professional.

To discover more tips on the Audi A4, take a look at the Audi A4 category.