Think about yourself driving peacefully on board your Mercedes A class and all of a sudden an engine warning light appears on your dashboard ! The most standard kind of reaction is the worry of risking a severe trouble. To know what accurately this light refers to, you will have to learn how to read an Mercedes A class fault codes, you may have already read about OBD system, this is exactly what we are going to take a look at. Our writers have decided to publish this document to help you quickly locate the source of this default code and to give you serenity. To perform this, we will first look at the nature of a fault code on Mercedes A class, then how to read an Mercedes A class fault code, and finally how to erase this fault code to be able to turn off the light on your dashboard.

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What is a Mercedes A class fault code?

A fault code is a universal or standard code which is identical to all manufacturers , they are also named DTC (Data Trouble Code), the objective is to guarantee that any diagnostic OBD can read them. They will be symbolized by a standard format, such as example: P0255. Each data will have a special explanation. Default codes are codes issued by the calculators of your Mercedes A class. These ECUs will constantly monitor your vehicle’s exhausts, pressures, mixtures and when the values exceed the limits set by the vehicle’s ECU, the fault code will show up. The benefit of understanding how to read a fault code on your Mercedes A class is that you will have access to complete statistics about your automobile which will let you to understand what issue you are facing.

How to read a fault code on my Mercedes A class?

In this second section we will now focus specifically on what brings you on this website, how to read a fault code on Mercedes A class. To discover this valued data you will need to to get a diagnostic tool, also named OBD 2, named after the socket on your Mercedes A class to which you will have to connect. These diagnostic tools are freely available in the market, 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 obtained an OBD2 diagnostic reader, you will have to discover the diagnostic plug on your Mercedes A class, it is established 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 A class.

How to erase the fault code Mercedes A class

Finally, to finish this article, we are going to describe you the process to carry out to erase a fault code on your Mercedes A class. Once you have navigated through the menus, you will access the list of active fault codes on your car. However, you will have to ask yourself an essential question, is it really beneficial to erase this fault code on Mercedes A class? Indeed, erasing a fault code without resolving the trouble corresponds to burying its head in the sand. Additionally, the computer of your Mercedes A class is made to take decisions depending to the data it collects, if an essential fault code is on, it will possibly adapt the engine performance to preserve it. So if you get rid of the fault code, remember to solve 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 A class.

To discover more tips on the Mercedes A class, take a look at the Mercedes A class category.