P0442 code & P0456 code 2015 S550 50K miles





I saw it is a evap code stating there is a small leak but i haven't been able to find out where this part is located and also how you can fix it and reset the engine light.



Please send info as i looked on line and haven't been able to find anything.



They also stated to check the gas cap. but if it is that how do i clear the code?

 

You can delete
in fact, you should ALWAYS delete a problem like this and see if it comes back first, to avoid false positives

There are plenty of videos on youtube showing different tests and directions on your problem. Just type "Mercedes P0456"

Just that you know, if you like to fix your problems yourself, only MB Xentry will give you all proper tests and a full system also provides diagrams, repair manuals and more
updating modules is mandatory on many problems before concluding that there really is something wrong