If you need to perform repairs on your E-max 140L then it will always be a good plan to have access to a Workshop Manual for reference in case that you want to know methods to take off a certain part much like the Door and install it again appropriately.
E-max 140L Workshop Manuals will give you specific diagnostic guides on your car or truck therefore if something is playing up it will help you determine what the situation is and easy methods to fix it. You can then analyse if you can do this on your own or that the job is too big you are able to book your 140L into a nearby mechanic.
E-max 140L manual