If you need to carry out maintenance on your own Vento Phantom R4i then it will always be recommended to possess a Workshop Manual to use as a guide just in case you want to know ways to take out a certain part like the Brake Pads and match it again correctly.
Vento Phantom R4i Workshop Manuals offer you specific diagnostic facts for your car so if something is not working it helps you work out what the problem is and the way to repair it. After that you can evaluate if this can be done by yourself or that the job is too big it is possible to make a booking for your Phantom R4i in with a decent repair garage.
Vento Phantom R4i manual