If you want to undertake fixes to your UM Matrix II 170 then it is usually recommended to have a Workshop Manual to keep just for personal reference in case that you need to know the right way to take off a certain component much like the Drive Shaft and match it again accordingly.
UM Matrix II 170 Workshop Manuals offers you unique diagnostic wisdom on your car so if something is wrong it helps you ascertain what the issue is and tips on how to repair it. Then you are able to analyse if you can do this on your own or in the event the job is just too big you could book your Matrix II 170 into a suitable car garage.
UM Matrix II 170 manual