If you want to undertake adjustments to your Vertemati C 450 Cross then it is usually a good plan to have access to a Workshop Manual for a guide if you need to know proven methods to remove a certain part for example Brake Pads and match it again properly.
Vertemati C 450 Cross Workshop Manuals will give you identifiable diagnostic guidelines with regards to your vehicle so if something is broken it can help you understand what the situation is and tips to fix it. You can then evaluate if you can do this by yourself or if the job is just too big you can actually make a reservation for your C 450 Cross right into a nearby friendly mechanic.
Vertemati C 450 Cross manual