Subaru 2009 IMPREZA Service Manual page 2696

HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
• Install the O-rings straight against the pipe
groove.
(A)
(B)
(C)
(C)
(A) O-ring
(B) OK
(C) NG
(D) Groove
• Use compressor oil specified in the service man-
ual to lubricate the O-rings.
Apply oil to the top and sides of O-rings before in-
stallation.
Apply compressor oil to the pipe grooves.
• After tightening, use a clean cloth to remove ex-
cess compressor oil from the connections and any
oil which may have run on the vehicle body or other
parts.
• If any leakage is suspected after tightening, do
not tighten the connections further, but disconnect
the connections, remove the O-rings, and check
the O-rings, threads, and connections.
General Description
(D)
AC-00009
AC-00010
AC-16