Welcome to the forum.
Your best bet is the Bavaria factory. Each new boat is delivered with an owners handbook and a set of handbooks and manuals for all the equipment that was fitted to the boat at the factory. The owners are expected to keep these and pass them on to the new owner when the boat is sold.. You do not say where you are based, but a good Bavaria dealer, particularly one who specialises in the motor boat may be able to help.
Good luck!
