09/04/2024 20:02:31
Desiccant (Remove and Replace)
Correction code 18202002 0.60 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.
- 2024-03-19: Added A/C compressor oil density note.
- 2023-04-05: Updated A/C oil type to be used with reference to Fluids and Capacities for A/C oil specifications.
- 2024-03-01: Updated the way of performing the routines from using Toolbox to using the touchscreen.
- 2024-04-02: Added reminding of checking the pressure of A/C system before opening the accumulator.
- 2024-04-07: Added reminding of wearing PPEs.
CAUTION
Model
Y thermal management components operate under very
tight specifications and can malfunction if Service procedures are not carefully
followed. DO NOT rely on past
experience with other thermal management systems; read through the Service Manual and do
not deviate from the
instructions.
Torque Specifications
Description | Torque Value | Recommended Tools | Reuse/Replace | Notes |
---|---|---|---|---|
Accumulator dust cap | Hand-tight |
|
Replace |
Remove
- Remove the HEPA filter assembly. See Assembly - Filter - HEPA (Remove and Install).
- Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
- Place the vehicle in Service Mode by using the touchscreen. See Service Mode.
- Unlock the vehicle gateway. See Gateway (Unlock).
- On the touchscreen, tap the Service Mode "wrench" (at the bottom of the touchscreen UI), and then tap Run, and allow the routine to complete. , click
- Disconnect the 12V/LV power. See 12V/LV Power (Disconnect and Connect).
-
Recover the A/C refrigerant.
See Recovery.
WarningMake sure there is no pressure in the A/C system before performing the following steps.
- Remove A/C hoses from the vehicle.
- Carefully depress the schrader valves (x2) to release vacuum from A/C lines.
-
If present, remove and
discard the dust cap from the accumulator.
Tip: Use of the following tool(s) is recommended:
- Torx T30 socket
- 3 in extension
- Ratchet/torque wrench
-
Use snap ring pliers to
remove and discard the accumulator cap snap ring.
WarningPlease ensure to wear the Face Shield throughout the entire process to prevent foreign objects from flying out.
-
Use long nose locking pliers
to remove and discard the accumulator cap.
WarningPlease ensure to wear the Face Shield throughout the entire process to prevent foreign objects from flying out.
- Use needle nose pliers to remove the desiccant bag from the accumulator.
- Weigh the desiccant bag. This is considered the "wet weight."
- Determine the "dry weight" of the desiccant bag: Inspect the bag for a label that contains the Part Number (P), Serial Number (S), and Dry Weight (W). If the label is missing, or if the dry weight is not visible, assume the dry weight is 90.4 grams.
- Subtract the dry weight from the wet weight. This is the amount of oil that must be added to the system in addition to the oil that was removed during refrigerant recovery. Note this amount for later.
Install
-
Install the desiccant bag in the accumulator.
NoteMake sure the tab on the desiccant bag faces upward.
- Lubricate the new accumulator cap O-rings with the appropriate A/C oil. See Fluids and Capacities for A/C oil specifications. Then install the cap on the accumulator.
-
Use the snap ring pliers to
install the new accumulator cap snap ring.
WarningPlease ensure to wear the Face Shield throughout the entire process to prevent foreign objects from flying out.NoteMake sure the snap ring is fully seated in the groove on the inside of the accumulator bore.
-
Hand-tighten the new dust cap to the
accumulator.
NoteScrew the dust cap until it bottoms out on the accumulator.Tip: Use of the following tool(s) is recommended:
- Torx T30 socket
- 3 in extension
- Ratchet/torque wrench
- Install A/C hoses to the vehicle.
- Initiate and complete the vacuum leak test, then return to this procedure. See Vacuum Leak Test and Oil Injection.
- Remove the low side AC hose from the supermanifold to HVAC AC line assembly.
-
Inject the amount of oil
that was lost to:
- Removal of the old desiccant bag. See step 16.
- Refrigerant recovery. See Vacuum Leak Test and Oil Injection.
CAUTIONDO NOT forget to inject the amount of oil that was lost to removal of the old desiccant bag. Failure to do so might cause catastrophic damage to the thermal system.NoteFor calculations, both ND-11 and RB100EV compressor oils have a density of 0.98 grams/ml at 15°C.- Given a value in grams, divide by 0.98 to find the value in ml (milliliters or cc).
- Given a value in ml (milliliters or cc), multiply by 0.98 to find the value in grams.
- Install the low side AC hose to the supermanifold to HVAC AC line assembly.
- Recharge the A/C refrigerant. See Recharge.
- Connect the 12V/LV power. See 12V/LV Power (Disconnect and Connect).
- Unlock the vehicle gateway. See Gateway (Unlock).
- On the touchscreen, select Run, and allow the routine to complete. , click
- Select Run, and allow the routine to complete. , click
- Select Test HVAC Performance, click Run, and allow the routine to complete.
- Disable Service Mode. See Service Mode.
- Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
- Install the HEPA filter assembly. See Assembly - Filter - HEPA (Remove and Install).