Just got my bearings changed at 96000km. / 60000 miles. I have just had my M3 for few weeks and this was the first thing to do. I really didn't see the point of doing oil analysis at this mileage because all in all it isn't that expensive to change the bearings. The guy who changed my bearings is making his living by changing rod bearings to S65 and to S85 motors. He also showed me bearings that had been changed at 35000 miles and they were in really bad shape. My bearings were in quite good condition for 60000 miles.
