If you want to undertake adjustments on your GAS GAS EC 300 then it will always be a good plan to possess a Workshop Manual to use as reference in the event that you need to know ways to take out a specific component for instance the Wheel Bearing and install it again successfully.
GAS GAS EC 300 Workshop Manuals are able to offer identifiable diagnostic details for the car or truck so if something is not working it will help you determine what the situation is and the best way to correct it. You will be able to decide if this can be done yourself or if the job is simply too big you can actually book your EC 300 in to a nearby garage.
GAS GAS EC 300 manual