Imagine yourself driving peacefully on board your Mercedes Classe A and suddenly an engine light appears on your dashboard ! The most standard response is worries of risking a severe trouble. To know what exactly this light refers to, you will have to learn how to read an Mercedes Classe A fault codes, you may have already read about OBD system, this is exactly what we are going to discuss. Our editors have decided to write this article to help you fairly quickly locate the origin of this default code and to give you serenity. To do this, we will first check out the nature of a fault code on Mercedes Classe A, then how to read an Mercedes Classe A 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 Classe A fault code?

A fault code is a universal or standard code common to all automotive companies , they are also called DTC (Data Trouble Code), the goal is to be sure that any diagnostic OBD can interpret them. They will be represented by a standard format, like for example: P0255. Each data will have a particular explanation. Default codes are codes issued by the calculators of your Mercedes Classe A. These ECUs will continuously monitor your vehicle’s emissions, pressures, mixtures and when the values exceed the limits set by the vehicle’s ECU, the fault code will emerge. The advantage of understanding how to read a fault code on your Mercedes Classe A is that you will have be able to access to precise statistics about your motor vehicle which will enable you to find out what problem you are facing.

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

In this second section we will now focus precisely on what brings you in this article, how to read a fault code on Mercedes Classe A. To access this useful data you will need to to acquire a diagnostic tool, also referred to as OBD 2, named after the socket on your Mercedes Classe A to which you will have to connect. These diagnostic tools are freely available to buy, 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 purchased an OBD2 diagnostic reader, you will have to locate the diagnostic plug on your Mercedes Classe A, it is based 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.

How to erase the fault code Mercedes Classe A

Finally, to finish this article, we are going to explain you the process to do to erase a fault code on your Mercedes Classe A. Once you have navigated through the menus, you will access the list of active fault codes on your car. But, you will have to ask yourself an essential question, is it really useful to erase this fault code on Mercedes Classe A? In fact, erasing a fault code without fixing the trouble corresponds to closing its eyes to the fact. Additionally, the computer of your Mercedes Classe A is made to take resolutions depending to the data it collects, if an essential fault code is present, it will possibly adapt the engine general performance to preserve it. So if you delete the fault code, be sure you resolve 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.

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