If you have to conduct fixes on your own Lem CX3 SR then it is usually a good idea to have a Workshop Manual to use as reference in the event you need to know how you can strip off a specific part for example the Brake Discs and match it again effectively.
Lem CX3 SR Workshop Manuals will provide you with precise diagnostic facts for your car therefore if something is not working it helps you determine what the problem is and the best way to fix it. You will be able to assess if this can be achieved yourself or if ever the job is too big you can make a booking for your CX3 SR right into a suitable friendly mechanic.
Lem CX3 SR manual