This needs to be done by someone knowledgable and with the right tools, most people go with an aftermarket specialist like those who advertise in the traders sectionwhat will need changing? is 500-600 just parts or labour aswell cos i can get everything fitted for free
you bought the car from a dealer?
well technically it should've been done by now, but no, unless YOU follow the service schedule they'll politley tell you to jog on
it shouldn't really have been sold to you if it wasn't done, but then again you should've checked before buying
ask them now then!