This is not a job for the faint hearted or weekend DIY'er and should be done by someone who knows what they are doing. With the car on the ground undo the centre wheel nut, this is torqued up to about 190lb/ft I seem to recall so you will need a good quality socket and bar. Loosen the nut, then loosen the wheel nuts, jack the car up, place an axle stand under the wishbone or chassis to support the car (safety first), remove the wheel, remove the spring that holds the brake pads in place, remove the locating pins if fitted, undo the two allen screws holding the sliding section of the brake calliper on, they are covered by 2 round rubber caps. Remove and support the caliper. Undo the 2 bolts that hold the caliper frame onto the hub behind the brake disk. If the brake disk is attached to the hub leave it on, if not slide it off the hub. Undo the centre nut holding the hub on, discard the tab washer. Pull the hub from the drive shaft. Remove the bearing seals from the hub and knock out the old bearings using a hammer and punch or bearing puller if you have one or better still a hydraulic press. Refit in reverse order after cleaning any residual dirty grease from the hub. I must point out at this stage that unless you know what you are doing I wouldnt attempt the job but get somebody who knows what they are doing to fit the new bearings. If you get it wrong failure can be very dramatic and life threatening. Always fit a new tab washer and a new hub nut on re-assembly. Torque the nut up with the wheel back on and the car on the ground to the correct manufacturers setting, again if you get that wrong the bearings will fail with consequences. Good luck.
Steve, February 2010
