Subaru Impreza 2003 Service Manual page 2760

HEATER DUCT
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
22.Heater Duct
A: REMOVAL
1) Remove the front seat. <Ref. to SE-6, REMOV-
AL, Front Seat.>
2) Remove the front side sill cover.
3) Pull off the floor mat to remove the heater duct.
AC-00646
B: INSTALLATION
Install in the reverse order of removal.
AC-42