Quick update - just got this response from a parts retailer I asked the same question regarding the slider pins;
Hi, thanks for contacting us
The pin with the anti-vibration boot is usually the trailing pin on Bosch calipers.
So if your caliper are leading, mounted to the front of the disc, it would be the top pin.
I hope this helps
Hi, thanks for contacting us
The pin with the anti-vibration boot is usually the trailing pin on Bosch calipers.
So if your caliper are leading, mounted to the front of the disc, it would be the top pin.
I hope this helps