Can some kind soul tell me which type of front brake caliper I've got (Bosch or ATE)?:
the photos are both ATE callipers not Boshe.... you can see the "micky mouse ears" clearly
You'll get a pretty good idea of what the pads will be like by looking at the inner and outer faces of the discs.
BTW, these are my (ATE) calipers after they had been refurbed. Note the confusing markings!:
It doesn't seem to follow any date order. Like you, I got very confused by the names on the calipers - bought a set of Bosch pads (anyone want a set of Mintex pads, still in the box?) as I saw 'BOSCH' cast into the caliper, only to find that I needed the ATE ones . As photoboy says, the giveaway is that the ATE pads have 'ears' on them, the Bosch ones don't, so rather than looking at the caliper, it's best to look at the pads you want to replace (you can see them from under the car without having to remove anything):