You shouldnt have to take the dash out to get the the motors, do you have classic or P38? If P38, each motor is easy to get at. Remove shroud under steering column, (large plastic section) and you will see right hand motor marked with a large VALEO sticker. On passenger side, remove glovebox and lower plastic shield to get good access to left hand motor. You can reach it by leaving the glove box in situ but it makes the task a lot harder