Imagine yourself driving peacefully on board your Mercedes Classe A 4 and all of a sudden an engine light appears on your dashboard ! The most standard response is the fear of risking a serious problem. To know what exactly this light refers to, you will have to learn how to read an Mercedes Classe A 4 fault codes, you may have previously heard about OBD system, this is exactly what we are going to speak about. Our editors have decided to compose this piece of content to enable you quickly discover the origin of this default code and to give you serenity. To perform this, we will first examine the nature of a fault code on Mercedes Classe A 4, then how to read an Mercedes Classe A 4 fault code, and finally how to erase this fault code to be able to turn off the light on your dashboard.

read-fault-codemercedes-classe-a-4

What is a Mercedes Classe A 4 fault code?

A fault code is a universal or standard code which is identical to all manufacturers , they are also identified as DTC (Data Trouble Code), the goal is to be sure that any diagnostic OBD can read them. They will be symbolized by a standard format, such as example: P0255. Each info will have a special meaning. Default codes are codes issued by the calculators of your Mercedes Classe A 4. These ECUs will continuously monitor your vehicle’s exhausts, pressures, mixtures and when the values exceed the limits set by the vehicle’s ECU, the fault code will appear. The advantage of understanding how to read a fault code on your Mercedes Classe A 4 is that you will have access to precise info about your automobile which will enable you to figure out what issue you are struggling with.

How to read a fault code on my Mercedes Classe A 4?

In this second section we will now focus precisely on what brings you on this site, how to read a fault code on Mercedes Classe A 4. To gain access to this useful info you will need to to obtain a diagnostic tool, also referred to as OBD 2, named after the socket on your Mercedes Classe A 4 to which you will have to connect. These diagnostic tools are freely available for purchase, you will be able to find some in Bluetooth version which connects to your phone and some standard versions with a reader associated to the socket, as far as price is concerned, you will be able to find models between 30 and 100 euros. Once you have bought an OBD2 diagnostic reader, you will need to situate the diagnostic plug on your Mercedes Classe A 4, it is located on the left side of your steering column on the lower part of your dashboard, behind a hatch. It is easy to locate because it is triangular shaped and has 16 pins. All you have to do is connect with your diagnostic tool to read the fault code of your Mercedes Classe A 4.

How to erase the fault code Mercedes Classe A 4

Finally, to finish this article, we are going to demonstrate you the manipulation to carry out to erase a fault code on your Mercedes Classe A 4. Once you have navigated through the menus, you will access the list of active fault codes on your car. Nevertheless, you will have to ask yourself an essential question, is it really beneficial to erase this fault code on Mercedes Classe A 4? Absolutely, erasing a fault code without dealing with the problem is like closing its eyes to the fact. Additionally, the computer of your Mercedes Classe A 4 is made to take decisions depending to the data it collects, if an essential fault code is on, it will likely adapt the engine overall performance to preserve it. So if you delete the fault code, make sure to fix the issue to which it is linked. Some OBD diagnostic tools do not allow you to do this. You have a dedicated navigation menu on most diagnostic tools that should allow you to clear this fault code on Mercedes Classe A 4.

To get more tips on the Mercedes Classe A 4, take a look at the Mercedes Classe A 4 category.