Hyundai Elantra: Air Conditioning System / Refrigerant Line
Components and components location

1. Refrigerant Pipe Assembly
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Repair procedures
1. | If the compressor is marginally operable, run the engine at idle speed, and let the air conditioning work for a few minutes, then shut the engine off. |
2. | Disconnect the negative (-) battery terminal. |
3. | Recover the refrigerant with a recovery / charging station. |
4. | Remove the bolts and the expansion valve (A) from the evaporator core. Tightening torque : 8.8 - 13.7 N.m ( 0.9 - 1.4 kgf.m, 6.5 - 10.1 Ib-ft) |

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5. | Loosen the mounting nuts, and then disconnect the discharge line (B) and liquid line (A) from the condenser. Tightening torque : 8.8 - 13.7 N.m ( 0.9 - 1.4 kgf.m, 6.5 - 10.1 Ib-ft) |

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6. | Disconnect the A/C pressure transducer connector (A). 
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7. | Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover") |
8. | Remove the bolts, then disconnect the suction line (A) and discharge line (B) from the compressor. Tightening torque : 21.6 - 32.4 N.m ( 2.2 - 3.3 kgf.m, 15.9 - 23.9 Ib-ft) |
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| Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination. |
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9. | Remove the refrigerant line assembly (A) to the upper of engine room. Tightening torque : 7.8 - 11.8 N.m ( 0.8 - 1.2 kgf.m, 5.8 - 8.7 Ib-ft) |

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10. | To install, reverse the removal procedure. •
| Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination. |
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| Tighten the bolt or nut joint to the specified torque. |
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| Using a gas leak detector, check for refrigerant leakage. |
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| Evacuate air in the refrigeration system and charge system with refrigerant. Capacity : 500 ± 25 g (17.6 ± 0.88 oz.) |
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Repair procedures
Oil Specification1.The HFC-134a system requires synthetic (PAG) compressor oil whereas the R-12 system requires mineral compressor oil...
Description and operation
DescriptionThe compressor is the power unit of the A/C system.It is located on the side of engine block and driven by a V-belt of the engine...
Other information:
Description
DescriptionThe auto defogging sensor is installed on the front window glass. The sensor judges and sends signal if moisture occurs to blow out wind for defogging. The air conditioner control module receives signal from the sensor and restrains moisture and eliminate defog by controlling the intake actuator, A/C, auto defogging actuator, blower motor rpm, and mode actuator...
Check the parking brake
warning light by placing the
ignition switch to the ON
position (do not start the
engine).
This light will be illuminated when the
parking brake is applied with the ignition
switch in the START or ON position.
If the parking brake warning light
remains on after the parking brake
is released while engine is running,
there may be a malfunction in the
brake system...