Heater & Air Conditioning System: Removal & Installation Nissan Note E12

Oil Adjusting Procedure for Components Replacement Except Compressor

Add the amount of oil that is calculated according to the following conditions.

Example: Oil amount to be added when replacing evaporator [m l (Imp fl oz.)] = 35 (1.2) + α

Scheme 9

Scheme 10

1. Drain oil from removed compressor and measure amount drained. Drain oil from high-pressure port (A) and low-pressure port (B) while rotating magnet clutch. Measure total amount of oil that is drained from removed compressor.
2. Drain oil from a new compressor that is calculated according to the following conditions. Amount to be drained (A) [m l (Imp fl oz.)] = F - (D + S + R + α) F: Oil amount that a new compressor contains [120 (4.2)] D: Oil amount that is drained from removed compressor S: Oil amount that remains inside of removed compressor [20 (0.7)] R: Oil amount to be added according to components that are removed except compressor α: Oil amount that is recycled together with refrigerant during recycle operation CAUTION: If oil amount that is drained from removed compressor is less than 60 m l (2.1 Imp fl oz.), perform calculation by setting "D" as 40 m (1.4 Imp fl oz.). Conditions Oil amount to be added to A/C system m l (Imp fl oz.) Replace evaporator 35 (1.2) Replace condenser (includes liquid tank) 20 (0.7) Example: Oil amount to be drained from a new compressor when replacing compressor [m l (Imp fl oz.)] [D = 60 (2.1), α = 5 (0.2)] 120 (4.2) - [60 (2.1) + 20 (0.7) + 5 (0.2)] = 35 (1.1)
3. Install compressor and check the operation.

REMOVAL

1. Discharge the refrigerant. Refer to " «RECYCLE REFRIGERANT»(ref-675574-S05939712502014120500000) ".
2. Remove front grille. Refer to " «REMOVAL AND INSTALLATION»(ref-675580-S16393645662014120500000) ".
3. Remove fender protector (RH). Refer to " «REMOVAL AND INSTALLATION»(ref-675580-S35121108852014120500000) ".
4. Remove low-pressure flexible hose and high-pressure flexible hose from compressor. CAUTION: Cap or wrap the joint of the A/C hoses and compressor with suitable material such as vinyl tape to avoid the entry of air.
5. Remove drive belt. Refer to " «REMOVAL AND INSTALLATION»(ref-675577-S24278316382014120500000) ".
6. Disconnect magnet clutch harness connector.
7. Remove bolts and compressor.

INSTALLATION

Installation is in the reverse order of removal.

1. Discharge the refrigerant. Refer to " «RECYCLE REFRIGERANT»(ref-675574-S05939712502014120500000) ".
2. Disconnect vacuum hose from intake manifold. Refer to " «EXPLODED VIEW»(ref-675601-S24182232422014120500000) ".
3. Remove ground wire from engine to radiator core support upper.
4. Remove front grille. Refer to " «REMOVAL AND INSTALLATION»(ref-675580-S16393645662014120500000) ".
5. Remove low-pressure flexible hose nut and bolt, then position lower dash insulator as necessary.
6. Remove bolt and low-pressure flexible hose from expansion valve. CAUTION: Cap or wrap the joint of the A/C hose and expansion valve with suitable material such as vinyl tape to avoid the entry of air.
7. Remove bolt and low-pressure flexible hose from compressor. CAUTION: Cap or wrap the joint of the A/C hose and compressor with suitable material such as vinyl tape to avoid the entry of air.

Installation is in the reverse order of removal.

1. Discharge the refrigerant. Refer to " «RECYCLE REFRIGERANT»(ref-675574-S05939712502014120500000) ".
2. Remove front grille. Refer to " «REMOVAL AND INSTALLATION»(ref-675580-S16393645662014120500000) ".
3. Remove bolt and high-pressure flexible hose from condenser. CAUTION: Cap or wrap the joint of the A/C hose and condenser with suitable material such as vinyl tape to avoid the entry of air.
4. Remove bolt and high-pressure flexible hose from compressor. CAUTION: Cap or wrap the joint of the A/C hose and compressor with suitable material such as vinyl tape to avoid the entry of air.

Installation is in the reverse order of removal.

1. Discharge the refrigerant. Refer to " «RECYCLE REFRIGERANT»(ref-675574-S05939712502014120500000) ".
2. Remove radiator core support upper. Refer to " «RADIATOR CORE SUPPORT UPPER: REMOVAL AND INSTALLATION»(ref-675592-S42489371712014120500000) ".
3. Remove low-pressure flexible hose. Refer to " «LOW-PRESSURE FLEXIBLE HOSE: REMOVAL AND INSTALLATION»(ref-675574-S37703863252014120500000) ".
4. Remove high-pressure flexible hose. Refer to " «HIGH-PRESSURE FLEXIBLE HOSE: REMOVAL AND INSTALLATION»(ref-675574-S10598539592014120500000) ".
5. Disconnect high-pressure pipe from expansion valve. CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air.
6. Remove bolt and high-pressure pipe from condenser. CAUTION: Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to avoid the entry of air.
7. Release clips and remove high-pressure pipe from vehicle.

Installation is in the reverse order of removal.

Scheme 11

1. Discharge the refrigerant. Refer to " «RECYCLE REFRIGERANT»(ref-675574-S05939712502014120500000) ".
2. Remove front grille. Refer to " «REMOVAL AND INSTALLATION»(ref-675580-S16393645662014120500000) ".
3. Remove air guides. Refer to " «EXPLODED VIEW»(ref-675592-S41165989092014120500000) ".
4. Remove radiator core support upper. Refer to " «RADIATOR CORE SUPPORT UPPER: REMOVAL AND INSTALLATION»(ref-675592-S42489371712014120500000) ".
5. Remove bolt and high-pressure flexible hose from condenser. CAUTION: Cap or wrap the joint of the A/C hose and condenser with suitable material such as vinyl tape to avoid the entry of air.
6. Remove bolt and high-pressure pipe from condenser. CAUTION: Cap or wrap the joint of the A/C piping and condenser with suitable material such as vinyl tape to avoid the entry of air.
7. Disconnect the harness connector from the refrigerant pressure sensor and remove condenser. CAUTION: Be careful not to damage core surface of condenser.

Installation is in the reverse order of removal.

LIQUID TANK: Removal and Installation of Liquid Tank

The liquid tank is only serviced as part of the condenser. Refer to " CONDENSER: REMOVAL AND INSTALLATION ".

Scheme 12

1. Discharge the refrigerant. Refer to " «RECYCLE REFRIGERANT»(ref-675574-S05939712502014120500000) ".
2. Remove front grille. Refer to " «REMOVAL AND INSTALLATION»(ref-675580-S16393645662014120500000) ".
3. Remove upper air guide and air guide (LH). Refer to " «EXPLODED VIEW»(ref-675592-S41165989092014120500000) ".
4. Clean refrigerant pressure sensor and surrounding area. CAUTION: Make sure to clean carefully.
5. Disconnect the harness connector from the refrigerant pressure sensor.
6. Support liquid tank, then remove refrigerant pressure sensor (1). CAUTION: Be careful not to damage liquid tank. Be careful not to damage core surface of condenser. Cap or wrap the joint of the condenser and liquid tank with suitable material such as vinyl tape to avoid the entry of air.

Installation is in the reverse order of removal.

Scheme 13

Scheme 14

1. Discharge the refrigerant (if equipped). Refer to " «RECYCLE REFRIGERANT»(ref-675574-S05939712502014120500000) ".
2. Drain engine coolant. Refer to " «DRAINING ENGINE COOLANT»(ref-675579-S13508668632014120500000) ".
3. Disconnect low-pressure flexible hose from expansion valve (if equipped). Refer to " «LOW-PRESSURE FLEXIBLE HOSE: REMOVAL AND INSTALLATION»(ref-675574-S37703863252014120500000) ". CAUTION: Cap or wrap the joint of the A/C hose and expansion valve with suitable material such as vinyl tape to avoid the entry of air.
4. Disconnect high-pressure pipe from expansion valve (if equipped). Refer to " «HIGH-PRESSURE PIPE: REMOVAL AND INSTALLATION»(ref-675574-S30856259452014120500000) ". CAUTION: Cap or wrap the joint of the A/C piping and expansion valve with suitable material such as vinyl tape to avoid the entry of air.
5. Disconnect heater hoses from heater core.
6. Remove instrument panel assembly. Refer to " «REMOVAL AND INSTALLATION»(ref-675607-S16560528422014120500000) ".
7. Disconnect evaporator drain hose (if equipped) from heating and cooling unit assembly.
8. Disconnect harness connectors, grounds, retainers, etc., and remove bolts required to remove steering member.
9. Remove steering member and heating and cooling unit assembly.
10. Remove heating and cooling unit assembly from steering member. Refer to " «EXPLODED VIEW»(ref-675574-S22743078322014120500000) ".

Installation is in the reverse order of removal.

Note. When refilling engine coolant, refer to " REFILLING ".

1. Remove the heating and cooling unit assembly. Refer to " «HEATING AND COOLING UNIT ASSEMBLY: REMOVAL AND INSTALLATION»(ref-675574-S24732836812014120500000) ".
2. Remove foot duct (LH). Refer to " «FOOT DUCT: REMOVAL AND INSTALLATION»(ref-675620-S24953047352014120500000) ".
3. Remove heater packing.
4. Remove heater pipe flange.
5. Remove heater core.

Installation is in the reverse order of removal.

Note. When refilling engine coolant, refer to " REFILLING ".

1. Remove heating and cooling unit assembly. Refer to " «HEATING AND COOLING UNIT ASSEMBLY: REMOVAL AND INSTALLATION»(ref-675574-S24732836812014120500000) ".
2. Remove foot duct (RH). Refer to " «FOOT DUCT: REMOVAL AND INSTALLATION»(ref-675620-S24953047352014120500000) ".
3. Remove intake case. Refer to " «EXPLODED VIEW»(ref-675574-S22743078322014120500000) ".
4. Remove expansion valve. Refer to " «EXPANSION VALVE: REMOVAL AND INSTALLATION»(ref-675574-S18513671632014120500000) ".
5. Remove evaporator cover and evaporator assembly.

Installation is in the reverse order of removal.

1. Discharge the refrigerant. Refer to " «RECYCLE REFRIGERANT»(ref-675574-S05939712502014120500000) ".
2. Disconnect low-pressure flexible hose from expansion valve. Refer to " «LOW-PRESSURE FLEXIBLE HOSE: REMOVAL AND INSTALLATION»(ref-675574-S37703863252014120500000) ".
3. Disconnect high-pressure pipe from expansion valve. Refer to " «HIGH-PRESSURE PIPE: REMOVAL AND INSTALLATION»(ref-675574-S30856259452014120500000) ".
4. Remove bolts and expansion valve. CAUTION: Cap or wrap the joint of the evaporator and expansion valve with suitable material such as vinyl tape to avoid the entry of air.

Installation is in the reverse order of removal.