However, it is recommended that whenever calipers are being replaced, then it has to be done in pairs for it is not advisable to replace a single one. To remove firstly one have to take off the wheel lug nuts, jack up the vehicle and put supporting stands before taking the wheels off. Third, unscrew the brake hose banjo bolt and plug it avoiding the admission of dust, grime and water in the brake system and also to contain the amount of brake fluid wasted during the process. If only trying to get to another component, support the caliper with wire don't disconnect the hose. Next, for the disc version you have to unbolt the caliper and then unbolt the caliper bracket from the steering knuckle / rear knuckle. For installation reverse the above step by and afterwards tighten the caliper mounting bolts (and bracket bolts if removed) to the recommended torque. Take new sealing washers fit on both the face of the brake hose banjo fitting, and then tighten the banjo bolt as much as possible according the the torque. Then, perform a bleed of the brake system, replace wheels and its nuts, provide an lowering of the automobile up to the necessary level, and, finally, tighten nuts under the necessary torque. It is the practice to press the brake pedal severally before the movement of the car to make sure that the brake pads touch the discs and this might lead to some initial inability to brake. Last but not the least, examine the brakes' functioning for the last time before getting on the wheels.