There are videos on YouTube "Bengal tiger" which helped me do my rear discs myself. You unscrew the motor and then Wind It Up by hand, being careful not to get any dust onto the splines. you don't need to get involved with the electrics and you just pull the wire out of a holder that it's held in by some Gromit type things.
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V90 March 17 Winter, Xenium, Carplay (which was a waste of money) Nantwich, Cheshire
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