Although the manual mentions procedures for changing every other bleeding light on the car, it omits the side repeaters, and I can't figure out how to get to them. Help!

You get to them from inside the wheel arch - involves removing the wheel & arch liner, then you can access it from the back. Something I'd like to do as well.

You don't need to remove the whole liner , just the spline socketed screw nearest the repeater, bend the liner out the way, slide your hand in and squeeze the clip on the back of the repeater gently then push it out the wing. You'll need to wiggle the liner when finishing the job, but still only a 5 minute job.