If you choose to do repairs to your UM Matrix II 170 then it will always be a good plan to possess a Workshop Manual for a reference in case that you want to know how to take out a certain part for example Gearbox and match it again properly.
UM Matrix II 170 Workshop Manuals gives you exact diagnostic info for your automobile therefore if something is playing up it helps you figure out what the situation is and how to make it better. Then you are able to evaluate if this can be achieved on your own or in case the job is just too big you are able to book your Matrix II 170 in to a nearby repair garage.
UM Matrix II 170 manual