If you want to undertake maintenance tasks on your own BMW R 1150 GS Adventure then it is always a good plan to have access to a Workshop Manual to use as personal reference in case that you need to know ways to take off a specific component for example, the Drive Shaft and fit it again the right way.
BMW R 1150 GS Adventure Workshop Manuals will provide you with specified diagnostic facts on your automobile so if something is wrong it can help you understand what the issue is and the best way to repair it. You will be able to determine if you can do this yourself or in case the job is just too big you are able to make a booking for your R 1150 GS Adventure right into a local repair garage.
BMW R 1150 GS Adventure manual