Imagine yourself driving peacefully aboard your Mercedes Classe B 3 and all of a sudden an engine light appears on your dashboard ! The most common kind of response is the fear of risking a critical issue. To know what exactly this light refers to, you will have to learn how to read an Mercedes Classe B 3 fault codes, you may have previously heard of OBD system, this is precisely what we are going to talk about. Our writers have chosen to write this document to help you fairly quickly find the source of this default code and to give you serenity. To do this, we will first look at the nature of a fault code on Mercedes Classe B 3, then how to read an Mercedes Classe B 3 fault code, and finally how to erase this fault code in order to turn off the light on your dashboard.

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What is a Mercedes Classe B 3 fault code?

A fault code is a universal or standard code which is identical to all automotive companies , they are also identified as DTC (Data Trouble Code), the purpose is to guarantee that any diagnostic OBD can translate them. They will be symbolized 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 B 3. 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 emerge. The advantage of understanding how to read a fault code on your Mercedes Classe B 3 is that you will have gain access to to complete data about your car which will let you to understand what problem you are standing in front of.

How to read a fault code on my Mercedes Classe B 3?

In this second part we will now focus specifically on what brings you in this article, how to read a fault code on Mercedes Classe B 3. To discover this useful data you will need to to obtain a diagnostic tool, also referred to as OBD 2, named after the socket on your Mercedes Classe B 3 to which you will have to connect. These diagnostic tools are easily 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 situate the diagnostic plug on your Mercedes Classe B 3, it is found 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 B 3.

How to erase the fault code Mercedes Classe B 3

Finally, to finish this article content, we are going to describe you the process to accomplish to erase a fault code on your Mercedes Classe B 3. 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 good to erase this fault code on Mercedes Classe B 3? Absolutely, erasing a fault code without resolving the issue is like closing its eyes to the fact. Furthermore, the computer of your Mercedes Classe B 3 is made to take decisions depending to the data it collects, if an essential fault code is present, it will possibly modify the engine general performance to preserve it. So if you erase the fault code, make sure to resolve the problem to which it is associated. 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 B 3.

If you wish more guides on the Mercedes Classe B 3, go to our Mercedes Classe B 3 category.