S90 L6-2.9L VIN 96 B6304S (1998)
12. Lift and tilt back relay board. Also remove relay board bracket.
13. Remove screw securing climate unit to dashboard on right-hand side.
14. Undo mounting above vacuum tank.
15. Remove vents from floor air distribution box.
16. Remove floor air distribution box. Carefully prise air ducts upward while pulling air distribution box to left.