BMW M535i Workshop Manuals
If you need to accomplish fixes on your own BMW M535i then it is always recommended to own a Workshop Manual to keep just for a reference in case that you need to know the way to strip off a specific component including Dashboard and install it again in the correct way.
BMW M535i Workshop Manuals provides particular diagnostic info for the vehicle so if something is playing up it can help you understand what the situation is and the best way to resolve it. You will be able to decide if this can be done yourself or if the job is too big you can actually make a booking for your M535i into a decent friendly mechanic.