If you wish to undertake fixes on your Rieju RS2 Pro Matrix then it is always recommended to own a Workshop Manual for reference in the event you want to know the right way to take out a specific part for example, the Dashboard and fit it again adequately.
Rieju RS2 Pro Matrix Workshop Manuals provides precise diagnostic wisdom for the car therefore if something is playing up it will help you work out what the issue is and the way to resolve it. You can then determine if this can be done yourself or in the event the job is too big you could make a booking for your RS2 Pro Matrix into a trusted friendly mechanic.
Rieju RS2 Pro Matrix manual