Desiccant (Remove and Replace)
Correction code 1840010052 FRT 0.36 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.
- 2024-09-27: Updated the UI routines and added note on adding correction code for refrigerant recovery/recharge 18200102 as a separate activity to the service visit.
- 2024-09-10: Added warnings to wear suitable protective clothing, consisting of face and eye protection, heat-proof gloves, rubber boots and apron or waterproof overalls must be worn when carrying out operations on the air conditioning system.
- 2024-06-12: Added caution for Schrader valves.
- 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.
Torque Specifications
Description | Torque Value | Recommended Tools | Reuse/Replace | Notes |
---|---|---|---|---|
Accumulator dust cap |
|
|
Replace |
Remove
- Set up the AC machine.
- Remove the underhood storage unit. See Underhood Storage Unit (Remove and Replace).
- Enable Service Mode via vehicle touchscreen. See Service Mode.
- Unlock the vehicle gateway. See Gateway Unlock.
- On the touchscreen, touch Run to start the "Start Thermal Fill Drain (Refrigerant Only)" routine. and select
- Disconnect the LV battery power. See LV Battery - Li-lon (Disconnect and Connect).
- Recover the A/C refrigerant. See A/C Refrigerant (Recovery and Recharge) (Maintenance).
- Wear appropriate personal protective equipment (PPE).
- Make sure there is no pressure in the A/C system before performing the following steps. Failure to do so may result in damage to components and/or personal injury.
-
If present, remove and
discard the dust cap from the accumulator.
Tip: Use of the following tool(s) is recommended:
- Torx T30 bit
- 3 in extension
- Flex head ratchet/flex head 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.WarningThe video(s) included in this procedure are meant as an overview for supplemental purposes only. Follow all of the steps listed in the procedure to avoid damage to components and/or personal injury.
-
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.
WarningThe video(s) included in this procedure are meant as an overview for supplemental purposes only. Follow all of the steps listed in the procedure to avoid damage to components and/or personal injury.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.Tip: Use of the following tool(s) is recommended:
- Torx T30 bit
- 3 in extension
- Flex head ratchet/flex head torque wrench
-
Perform the vacuum leak test and
refill A/C refrigerant. See A/C Refrigerant (Recovery and Recharge) (Maintenance).
NoteInject the amount of oil that was lost to:
- Removal of the old desiccant bag. See step 16.
- Refrigerant recovery. See A/C Refrigerant (Recovery and Recharge) (Maintenance).
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. - Connect LV power. See LV Battery - Li-lon (Disconnect and Connect).
- Unlock the vehicle gateway. See Gateway Unlock.
- On the touchscreen, touch Run to start the routine. and select
-
Touch Run to start the routine.
and select NoteMake sure the routine is passed, then touch Close to close it.
-
Touch Run to start the routine.
and select NoteMake sure the routine is passed, then touch Close to close it.
- Exit Service Mode through UI. See Service Mode.
- Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).