I had to renew a caliper on the allroad but ordered a pair so I had both sides fresh. These are 100 ish from audi but can b found on eBay for 70ish if you are lucky.
I compared these side by side with S2 Avant rear caliper. They are going to bolt on fit with same rear handbrake mechanism and securing clip. Same 38mm piston and S2 pads will work. The only difference is the hydraulic hose fitting at the caliper. Either a custom hose or maybe something else off shelf will work. This is for NON vented disc.
the part numbers are 8E0 615 423A and 424A. These are light alloy calipers and have a much superior handbrake mechanism to old S2 design.
The main upside from this is that I believe the alloy caliper from vented rear on allroad / C5-S6 should also bolt on to rear of S2 Avant using 280mm discs, spun down from 8E0 300mm and with A8 carriers. This should be a 43mm piston.
Sorry if this is a bit confusing - I'll post more details later when I can check into an even better idea with something bigger.
I compared these side by side with S2 Avant rear caliper. They are going to bolt on fit with same rear handbrake mechanism and securing clip. Same 38mm piston and S2 pads will work. The only difference is the hydraulic hose fitting at the caliper. Either a custom hose or maybe something else off shelf will work. This is for NON vented disc.
the part numbers are 8E0 615 423A and 424A. These are light alloy calipers and have a much superior handbrake mechanism to old S2 design.
The main upside from this is that I believe the alloy caliper from vented rear on allroad / C5-S6 should also bolt on to rear of S2 Avant using 280mm discs, spun down from 8E0 300mm and with A8 carriers. This should be a 43mm piston.
Sorry if this is a bit confusing - I'll post more details later when I can check into an even better idea with something bigger.
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