Regular maintenance of your BMW is not only essential to keep the vehicle in working order, it is also necessary to maintain the manufacturer’s warranty. If you buy a new vehicle, make sure all maintenance and repairs are properly documented during the ownership period. On the other hand, when buying a used BMW, you will want to choose a vehicle with proper service records. BMW currently maintains computerized records of all maintenance and warranty work performed at authorized BMW dealers. If you own a new vehicle or a used vehicle that has only been repaired at dealerships, it can be quite easy to obtain complete service records. If your vehicle has been repaired at unauthorized dealers, you will have to do a little more research to get your vehicle’s maintenance history.