If you want to execute maintenance for your Benelli 354 Sport then it is usually recommended to have a Workshop Manual to use as personal reference in the event that you need to know the best way to strip off a particular part for example, the Dashboard and fit it again in the correct manner.
Benelli 354 Sport Workshop Manuals provide you with unique diagnostic facts for the car therefore if something is wrong it will help you work out what the situation is and the best way to make it better. You will be able to evaluate if you can do this on your own or in case the job is simply too big you could make a reservation for your 354 Sport in with a local friendly mechanic.
Benelli 354 Sport manual