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 ServiceManualFeedback@tesla.com.
NOTE: See Personal Protection to make
sure wearing proper PPE when performing the below procedure.
- 2025-06-09: Updated the special tools for removing the accumulator cap.
- 2025-05-08: Added additional step to check refrigerant system pressure on the touchscreen after refrigerant recovery.
- 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.
- 1985068-00-A - Female to Female Threaded Adapter
- 1081547-00-B - Small Slide Hammer
Torque Specifications
Description | Torque Value | Recommended Tools | Reuse/Replace | Notes |
---|---|---|---|---|
Accumulator dust cap |
![]() NaN Nm (NaN lbs-ft) |
|
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, and allow the routine to complete. , click
- Disconnect LV power. See LV Battery - Li-lon (Disconnect and Connect) (Modify).
- Wear appropriate personal protective equipment (PPE).
- Recover the A/C refrigerant. See A/C Refrigerant (Recovery and Recharge) (Maintenance).
- Make sure there is no overpressure in the A/C system before performing the following steps. Failure to do so may result in damage to components and/or personal injury.
-
On the touchscreen, make sure that the refrigerant system pressure is at atmospheric level (approx. 1 bar).
NoteOn the touchscreen, touch.
- Remove A/C hoses from the vehicle.
-
Carefully depress the Schrader valves
(x2) to level out any pressure difference between the A/C system pressure and the actual
ambient atmospheric pressure.
CAUTIONMake sure to depress both Schrader valves. Failure to do so may result in injury.
-
If present, remove and discard the
dust cap from the accumulator.
TIpUse 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.
-
Thread the adapter onto the slide
hammer, and then thread the slide hammer onto the accumulator cap. Use the adapter and
the slide hammer 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.TIpUse of the following tool(s) is recommended:
- 1985068-00-A - Female to Female Threaded Adapter
- 1081547-00-B - Small Slide Hammer
- 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.
-
If equipped, hand-tighten the new dust
cap to the accumulator.
TIpUse 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 19.
- 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) (Modify).
- Unlock the vehicle gateway. See Gateway Unlock.
- On the touchscreen, touch Run, and allow the routine to complete. , click
- Touch Run, and allow the routine to complete. , click
- Touch Run, and allow the routine to complete. , click
- Exit Service Mode through UI. See Service Mode.
- Install the underhood storage unit. See Underhood Storage Unit (Remove and Replace).