A/C Refrigerant (Recovery and Recharge) (Maintenance)
Correction code 18200102 FRT 0.00 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 wearing proper PPE when performing the below procedure.
- 1501412-00-A OIL INJECTOR, R1234YF
- 1120026-0x-A AC Service Machine
Recovery
- 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.
- 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.
- 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.
- Make sure to use the appropriate type of A/C oil. See Fluids and Capacities for A/C oil specifications.
- Open the LH front door and fully lower the LH front window.
- On the touchscreen, turn the A/C and blower motor off.
- Open the hood.
- Enable Service Mode. See Service Mode.
-
Access the thermal system service
touchscreen menu.
- On the touchscreen, touch the "Start" button next to "Start Thermal Fill Drain (Refrigerant Only)", and then touch Run Task. Close the pop-up window once the routine has passed.
- Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
- Remove the HEPA filter assembly. See HEPA FILTER (Remove and Replace).
-
Wear appropriate personal protective
equipment.
WarningR134a 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.
- Remove the caps from the A/C high pressure and low pressure ports.
-
Connect the red high pressure hose to
the vehicle's high pressure port, and the blue low pressure hose to the vehicle's low
pressure port.
NoteThe high pressure and low pressure ports are of different sizes, and match the hose couplers accordingly.
- Take note of the current oil level in the A/C machine oil tank, or understand how to use the A/C machine UI to note the amount of oil recovered after recovery is complete.
- Make sure the "Refrigerant" indicator on the touchscreen is green and "Ready for Recharge/Reclaim".
- Follow the A/C machine instructions for recovering refrigerant from the vehicle.
- Measure the quantity of refrigerant recovered from the system. It should be approximately 1000 - 1040 g. Record the quantity recovered in the notes section of the Repair Order.
Vacuum Leak Test and Oil Injection
-
On the vehicle touchscreen, verify
that the system is in Recharge/Reclaim mode. If the vehicle is not in Recharge/Reclaim
mode, activate Recharge/Reclaim mode and verify that the green status indicator is
present.
NoteThe status indicator will be red if the mode is inactive.
- On the A/C machine, enter 1.02 kg (1020 g) of "Refrigerant Charge", and then select GO.
- Perform steps 1-3 as instructed by the A/C machine. After completing step 3, touch Next to begin the vacuum leak test.
- The A/C machine will pull vacuum for 5 minutes, perform a vacuum decay test for another 5 minutes, and then perform a pressure test.
-
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 -
In addition to the previous step, add
an additional amount of oil if the component being serviced is listed in the following
table:
Serviced Component Additional Amount of Oil to Add in grams or ml HVAC Module Assembly 40 Liquid-cooled Condenser 20 Battery Chiller 20 Supermanifold to Compressor A/C Line 10 Refrigerant Valves (EXV's, Shut Off Valves, Check Valves) Visually estimate and replenish the amount of oil lost, if spillage of less than ~5 ml is observed during component removal Supermanifold to HVAC A/C Line - Inject oil into the vehicle:
Recharge
-
Touch Next, and then follow the
A/C machine instructions to perform an A/C refrigerant recharge.
CAUTIONFor Robinair machines, DO NOT accept the step to clear out residual oil. Press ESC to decline.
- When refrigerant is recharged, touch Next to start the "End of Charge" process.
- When prompted, close the high and low valves on the machine, and then tap NEXT.
- On the touchscreen, touch the "Start" button next to "Stop Thermal Fill Drain", and then touch Run Task. Close the pop-up window once the routine has passed.
-
On the touchscreen, touch the "Start"
button next to "Run Heat Pump Commissioning", and then close the pop-up window once the
routine has passed.
NoteThe status for the routine will change from "INACTIVE" to "RUNNING" once started.
-
On the vehicle touchscreen, set the
A/C system to the following, and then tap NEXT on the A/C
machine.
- A/C power: On
- Temp: LO
- Airflow Controllers: On
- Fresh Air Mode: On
- Blower Speed: 3
- On the A/C machine, verify the discharge pressure does not exceed 26 bar and suction pressure is not below 1.15 bar, and then tap NEXT.
- Turn the vehicle A/C off and allow the pressures to stabilize, as indicated on the A/C machine.
- Close and remove the high pressure hose from the vehicle, and then tap NEXT.
-
On the vehicle touchscreen, set the
A/C system to the following.
- A/C power: On
- Temp: LO
- Airflow Controllers: On
- Fresh Air Mode: On
- Blower Speed: 3
- Allow the A/C system pressures to stabilize, and then close and remove the low pressure hose.
- Follow the A/C machine instructions to clear the A/C hoses.
- Install the caps on the A/C high pressure and low pressure ports.
-
Access the thermal system service
touchscreen menu: Touch the Service Mode "wrench" (at the bottom of the touchscreen UI)
> Diagnostics
> Thermal.
NoteOn vehicles with older firmware, touch Quick Controls > Service Mode > Diagnostics > Thermal.
-
Scroll up on the touchscreen, touch
the "Start" button next to "Test HVAC Performance", and then close the pop-up window
once the routine has passed.
NoteThe status for the routine will change from "INACTIVE" to "RUNNING" once started.
-
Scroll up on the touchscreen, touch
the "Start" button next to "Test Thermal Performance", and then close the pop-up window
once the routine has passed.
NoteThe status for the routine will change from "INACTIVE" to "RUNNING" once started.
- If previously removed, install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
- Install the HEPA filter assembly. See HEPA FILTER (Remove and Replace).
- Install the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
- Disable Service Mode. See Service Mode.