The garage says that brake fluid has leaked from the master cylinder into the ABS unit ... as far as I’m aware, BMW has replaced these with new modules that have different part numbers.

The brake master cylinder is the first component in a vehicle’s braking system, activated by depressing the brake pedal. The pedal pushes a piston through this cylinder, forcing brake fluid ...

Continental Automotive Systems has issued a recall for its MK C1 EVO brake-by-wire master cylinder unit. The issue affects 33,596 vehicles from multiple major manufacturers and could result in ...