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Home >> Fiat >> 2018 >> 500 Lounge, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Heating & Air Conditioning (Service Information) 500 - Electric) >> Plumbing >> Valve, A/C Expansion >> Installation

Valve, A/C Expansion: Installation

WARNING: This page is about a different variant/trim than selected.
CAUTION:

Be certain to adjust the refrigerant oil level when servicing the A/C refrigerant system. Failure to properly adjust the refrigerant oil level will prevent the A/C system from operating as designed and can cause serious A/C compressor damage.

NOTE:

When replacing multiple A/C system components, see the Refrigerant Oil Capacities chart to determine how much oil should be added to the refrigerant system. Refer to STANDARD PROCEDURE .

NOTE:

Replacement of the O-ring seals is required anytime a refrigerant line or A/C expansion valve is disconnected. Failure to replace the O-ring seals may result in a refrigerant system leak.

GC0152404Courtesy of CHRYSLER GROUP, LLC
  1. Remove the tape or plugs from all the opened refrigerant line fittings and evaporator ports.
  2. Lubricate new O-ring seals with clean refrigerant oil and install them onto the evaporator tube fittings. Use only the specified O-ring seals as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  3. Install the A/C expansion valve (2) onto the evaporator tubes.
  4. Install the two bolts (1) that secure the A/C expansion valve to the evaporator tube tapping block. Tighten the bolts to 4 N.m (35 in. lbs.).
    GC0152403Courtesy of CHRYSLER GROUP, LLC
  5. Lubricate new O-ring seals with clean refrigerant oil and install them onto the refrigerant line fittings. Use only the specified seals as they are made of a special material for the R-134a system. Use only refrigerant oil of the type recommended for the A/C compressor in the vehicle.
  6. Connect the A/C liquid line (4) and the A/C suction line (2) to the A/C expansion (1).
  7. Install the nuts (3) that secure the A/C liquid and suction lines to the A/C expansion valve. Tighten the nuts to 20 N.m (15 ft. lbs.).
  8. Evacuate the refrigerant system. Refer to STANDARD PROCEDURE .
  9. Adjust the refrigerant oil level. Refer to STANDARD PROCEDURE .
  10. Charge the refrigerant system. Refer to STANDARD PROCEDURE .
  11. Power up the high-voltage system. Refer to 12 VOLT POWER UP .
  12. Connect the 12-volt negative battery cable.
  13. Install the electric motor trim cover.
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