Yeah, it's really simple. I have the same brakes on my 500E. Just 2 big bolts holding the caliper to the hub. I'd strongly suggest the pads be removed first; simply knock out one of the two narrow stainless steel retaining pins (hitting toward the inside of the car) and the pads/retaining spring will come out quite easily. If re-using the pads, try to avoid removing the sensors, as you'll likely break them when doing so (I think when they heat up they bond to the pads)

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All the best, Michael
500E
300TE