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Cooling System Bleeding

Before filling cooling system, ensure heater valve is open to allow coolant flow through heater core. See OPENING HEATER VALVE  table. When filling cooling system, ensure air relief plug is loose to allow trapped air to exit system. See Fig 2 -Fig 12 . Tighten air relief plug after filling cooling system.

NOTE: NX 1.6L and Sentra 1.6L use 2 air relief plugs. NX 2.0L and Sentra 2.0L use an air bleeder cap on heater hose pipe in addition to air relief plug.
OPENING HEATER VALVE

Application Procedure
Manual A/C Move Temperature Control Lever To Full HOT Position. (1)
Automatic A/C
Maxima Turn Ignition Off.
Pathfinder & Pickup Turn Ignition On.
300ZX (2)
(1) On 300ZX, turn ignition on also.
(2) Turn ignition off then on. Simultaneously press AUTO and OFF buttons on A/C control panel and hold for at least 5 seconds. Release buttons. Press AUTO button once. Ensure 2 right segments on A/C control panel illuminate. See Fig 1 . If 2 right segments do not illuminate, press AUTO button as many times as necessary (this cycles through segment illumination).
Fig 1: Opening Heater Valve (300ZX)
G93J01358Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Locating Air Relief Plug (Maxima V30DE)
G93I01937Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Locating Air Relief Plug (Maxima VG30E)
G93A01938Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 4: Locating Air Relief Plug "A" (NX & Sentra 1.6L)
G93C01939Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 5: Locating Air Relief Plug "B" (NX & Sentra 1.6L)
G93E01940Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 6: Locating Air Relief Plug (NX & Sentra 2.0L)
G93G01941Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 7: Locating Air Bleeder Plug (NX & Sentra 2.0L)
G93I01942Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 8: Locating Air Relief Plug (Pickup 2.4L)
G93A01943Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 9: Locating Air Relief Plug (Pathfinder & Pickup 3.0L)
G93C01944Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 10: Locating Air Relief Plug (Stanza)
G93F01945Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 11: Locating Air Relief Plug (240SX)
G93H01946Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 12: Locating Air Relief Plug (300ZX)
G93J01947Courtesy of NISSAN MOTOR CO., U.S.A.
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