If you want to perform repairs for your Beta M4 then it is always a good plan to have access to a Workshop Manual for personal reference in case that you need to know the best way to strip off a certain component for example, the Wheel and match it again effectively.
Beta M4 Workshop Manuals can provide certain diagnostic facts on your automobile therefore if something is not working it can help you figure out what the problem is and easy methods to fix it. Then you are able to analyse if you can do this yourself or if the job is too big you can still make a reservation for your M4 right into a trusted repair garage.
Beta M4 manual