07/11/2023 18:05:54

A/C Refrigerant (Recovery and Recharge)

Correction code 18200102 1.10 NOTE: Unless otherwise explicitly stated in the procedure, the above correction code and FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. To provide feedback on FRT values, email LaborTimeFeedback@tesla.com. NOTE: See Personal Protection to make sure proper PPE is worn when performing the below procedure.

  • 2023-10-31: Reorganized the procedure.
  • 1501412-00-A OIL INJECTOR, R1234YF
  • 1711245-00-A Snap On Ecotechnics Dual Gas AC Machine
Warning IconA warning icon, calling your attention to a possibly risky situation
Warning
Only personnel familiar with both vehicle A/C systems and the A/C machine are permitted to service the systems. Always read and understand the A/C machine operator’s manual before operating the A/C machine.
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Warning
Refrigerants R134a and R1234yf are hazardous liquids and, if handled incorrectly, can cause serious injury. Suitable Personal Protective Equipment (PPE), consisting of face protection, heat-proof gloves, rubber boots, and apron or waterproof overalls, must be worn when performing recovery or recharge on the air conditioning system.
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Warning
Do not breathe refrigerant and lubricant vapor or mist. Exposure might cause personal injury, especially to the eyes, nose, throat, and lungs. Perform service and repairs in a well-ventilated area. If accidental discharge occurs, ventilate the work area before returning to work. Additional health and safety information is available from equipment, refrigerant, and lubricant manufacturers. Refer to manufacturer's instruction manuals and Material Safety Data Sheets.
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Warning
Avoid using an extension cord on the A/C machine whenever possible. If an extension cord is used, it might overheat and cause a fire. If you must use an extension cord, use the shortest extension cord possible with a minimum 14AWG wire rating.
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Warning
Do not use compressed air to pressure test or leak test the A/C machine or the vehicle A/C system. Some mixtures of air and refrigerant are combustible at elevated pressures. These mixtures are potentially dangerous and might result in fire or explosion, causing personal injury or property damage.
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Warning
Be aware of fire hazards. Do not use the A/C machine in the vicinity of spilled or open containers of flammable liquid.
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Warning
If you are operating the A/C machine in an environment where temperatures exceed 120 degrees Fahrenheit / 49 degrees Celsius, you must wait 10 minutes between tasks.
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Warning
Never transfer refrigerants to a cylinder or tank unless it is Department of Transportation approved for refilling. DOT approval is indicated by the designation “DOT 4BA” or “DOT 4BW” stamped on a tank’s collar (handle). If a refrigerant tank is overfilled, it might explode. Be aware that when transferring refrigerant into a tank, the safe filling level must be controlled by weight, and must not exceed 60% of the tank’s gross weight rating.
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CAUTION
Only use Tesla-specified refrigerant in the vehicle A/C system and the A/C machine. Do not mix refrigerant types within a vehicle A/C system or in the same container. Mixing refrigerants can severely damage the A/C machine and the vehicle A/C system.
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CAUTION
Only use the specified type of A/C oil.
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CAUTION
Do not allow refrigerant oil to come in contact with any surfaces of the vehicle as it might cause damage to the paint, trim, or finish of the vehicle.
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CAUTION
Always keep refrigerant oil in its original container, tightly sealed, and clearly marked so as to prevent contamination of any kind.
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CAUTION
Do not over-fill the vehicle’s A/C system with oil. Replace only the exact amount that is removed. Always measure the amount of oil extracted and refill it with that exact amount.
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CAUTION
Always maintain different oil canisters for different types of oil. These canisters should be clearly marked to avoid any cross-contamination between the oils.
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CAUTION
The refrigerant cylinders currently in use as source tanks are disposable cylinders. Before they are discarded, connect the disposable refrigerant cylinder to the recovery equipment and bring to a vacuum to ensure that all of the refrigerant has been removed. Then mark the cylinder “Empty”.
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CAUTION
Always reference the information label to determine the refrigerant capacity of the vehicle. Do not over-fill or under-fill the A/C system with refrigerant.

Recovery

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CAUTION
Failure to follow these recovery instructions could cause catastrophic damage to the A/C system.
  1. Perform a calibration check of the A/C machine. Refer to the A/C machine operator’s manual for instructions on how to perform a calibration check of the A/C machine. If the machine fails the calibration check, do not use the machine until a service representative has calibrated the A/C machine.
  2. Inspect the entire length of the hoses and fittings for degradation, cracks, or damage. Make sure that the condition of the hoses and fittings is such that they will not leak when in service.
  3. Inspect the A/C machine’s power supply cord and plug that they are not damaged and the insulation has not been compromised in any way.
  4. Make sure to use the appropriate type of A/C oil.
  5. Set up the A/C machine.
  6. Unlock the vehicle gateway. See Gateway (Unlock).
  7. On the touchscreen, touch Service Mode > Thermal > Refrigerant System > Start Thermal Fill Drain (Refrigerant Only) and select Run to start the "Start Thermal Fill Drain (Refrigerant Only)" routine.
  8. Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
  9. Remove the cowl screen panel. See Panel - Cowl Screen (Remove and Replace).
  10. Remove the wiper module. See Wiper Module (Remove and Replace).
  11. Wear appropriate personal protective equipment.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    Warning
    R134a and r1234yf refrigerants are dangerous liquids and can cause serious injury if handled improperly. When recycling or recharging the air conditioning system, you must wear appropriate personal protective equipment (PPE), including face shields, heat-resistant gloves, rubber boots, aprons or waterproof overalls.
  12. Remove the caps from the A/C high pressure and low pressure ports.
  13. Connect the red high pressure hose to the A/C high pressure port, and the blue low pressure hose to the A/C low pressure port.
    Informational PurposesAn informational icon, calling your attention
    Note
    The high pressure and low pressure ports are of different sizes, and match the hose couplers accordingly.
  14. Follow the A/C machine instructions for recovering refrigerant and oil from the vehicle.
    Informational PurposesAn informational icon, calling your attention
    Note
    The A/C machine chimes when recovery is complete.
  15. Take note of or print the amoRunt of refrigerant (approximately 1000 - 1040 g) and oil (approximately 8.87 ml) recovered after recovery is complete.

Vacuum Leak Test and Oil Injection

  1. On the A/C machine, touch Enter, and then follow the A/C machine instructions to perform A/C vacuum leak test.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Make sure vacuum leak test is passed before proceeding to the next step.
    Informational PurposesAn informational icon, calling your attention
    Note
    The A/C machine chimes when vacuum leak test is complete.
  2. Remove the blue low pressure hose from the A/C low pressure port.
  3. Measure the quantity of oil recovered from the vehicle's A/C system by comparing the level change in the oil recovery tank. Refer to the table below to determine the quantity of oil to add to the A/C system during recharge, assuming that no components are being replaced.
    Amount of Drained Oil from A/C Machine in grams or ml Amount of Oil to Add to A/C System During Recharge in grams or ml
    10 10
    20 20
    30 30
    40 42
    50 55
    60 67
    70 80
    80 92
    90 105
    100 117
    110 130
    120 142
    130 155
    140 167
    150 180
  4. Install the blue low pressure hose to the A/C low pressure port.

Recharge

  1. Touch Enter, and then follow the A/C machine instructions to perform an A/C refrigerant recharge.
    Informational PurposesAn informational icon, calling your attention
    Note
    Enter refrigerant account noted in the A/C recovery.
    Informational PurposesAn informational icon, calling your attention
    Note
    The A/C machine chimes when recharge is complete.
  2. Remove the red high pressure hose from the A/C high pressure port, and the blue low pressure hose from the A/C low pressure port.
  3. Install the caps on the A/C high pressure and low pressure ports.

Performance Tests

  1. On the touchscreen, perform the following steps:
    1. Touch Service Mode > Thermal > Refrigerant System > Stop Thermal Fill Drain to complete the "Start Thermal Fill Drain (Refrigerant Only)" routine.
      Informational PurposesAn informational icon, calling your attention
      Note
      Make sure the routine is passed, then touch OK to close it.
    2. Touch Service Mode > Thermal > Refrigerant System > Run Heat Pump Commissioning and select Run to start the "Run Heat Pump Commissioning" routine.
      Informational PurposesAn informational icon, calling your attention
      Note
      Make sure the routine is passed, then touch Close to close it.
    3. Touch Service Mode > Thermal > Actions > Test Thermal Performance and select Run to start the "Thermal System Performance Test" routine.
      Informational PurposesAn informational icon, calling your attention
      Note
      Make sure the routine is passed, then touch Close to close it.
    4. Touch Service Mode > Thermal > Actions > Test HVAC Performance and select Run to start the "HVAC System Performance Test" routine.
      Informational PurposesAn informational icon, calling your attention
      Note
      Make sure the routine is passed, then touch Close to close it.