Friction modifiers reduce the friction between the lug nut and bolt and cause false torque readings. Wheelbearing Life . Readying my daughter's 740 for a long road trip. Bought the vehicle with 112k - it has 120k now. Shows no overt symptoms of bearing wear.
Wheels are tight with little play.
The 700 wheel bearings seem to last a bit longer than those on the 200 series. There are a couple of different types. The early ones were similar to the 200 series and could be expected to last 100K to 200K, perhaps with a cleaning and re-packing at some point. If the bearing still has grease in it and the grease is not burned, I would leave it alone. The later 700s use a slightly different bearing that is installed with preloading.