ABS-unit from octavia (golf, touran) has long-coding (18 bytes), and it is possible to encode it to work with special ABS sensors (with letter "A" on the end of the part number). Passat B6 ABS-unit uses short-coding and it is imossible to encode it so it could work with new ABS sensors. ABS from passat B7 works with new ABS sensors.
I will test new ABS-sensors on my car soon.