Think about yourself driving peacefully on board your Mercedes Viano and suddenly an engine signal shows up on your dashboard ! The most frequent kind of reaction is the fear of risking a critical problem. To know what exactly this light corresponds to, you will have to learn how to read an Mercedes Viano fault codes, you may have previously heard about OBD system, this is exactly what we are going to discuss. Our writers have decided to compose this article content to help you quickly find the origin of this default code and to give you serenity. To get this done, we will first check out the nature of a fault code on Mercedes Viano, then how to read an Mercedes Viano 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 Viano fault code?

A fault code is a generic or standard code common to all manufacturers , they are also called DTC (Data Trouble Code), the purpose is to guarantee that any diagnostic OBD can understand them. They will be represented 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 Viano. 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 benefit of knowing how to read a fault code on your Mercedes Viano is that you will have be able to access to specific data about your car which will let you to find out what issue you are struggling with.

How to read a fault code on my Mercedes Viano?

In this second part we will now focus precisely on what brings you here, how to read a fault code on Mercedes Viano. To discover this valuable data you will need to to obtain a diagnostic tool, also referred to as OBD 2, named after the socket on your Mercedes Viano 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 have to identify the diagnostic plug on your Mercedes Viano, 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 Viano.

How to erase the fault code Mercedes Viano

Finally, to finish this article content, we are going to explain you the manipulation to perform to erase a fault code on your Mercedes Viano. 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 productive to erase this fault code on Mercedes Viano? Absolutely, erasing a fault code without resolving the problem corresponds to closing its eyes to the fact. In addition, the computer of your Mercedes Viano is made to take decisions according to the data it records, if a very important fault code is on, it will likely adjust the engine overall performance to preserve it. So if you get rid of the fault code, make sure to fix the issue to which it is connected. 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 Viano.

To find more tips on the Mercedes Viano, take a look at the Mercedes Viano category.