If you have to do fixes to your Diamo Retro 150 then it is usually a great idea to have access to a Workshop Manual to use as a guide in the event you need to know easy methods to take out a particular component for instance the Dashboard and match it again efficiently.
Diamo Retro 150 Workshop Manuals will give you unique diagnostic information for the vehicle therefore if something is wrong it can help you work out what the problem is and easy methods to repair it. You will be able to assess if this can be achieved by yourself or if the job is too big you can actually book your Retro 150 in with a local mechanic.
Diamo Retro 150 manual