11/09/2024 18:09:10
Receiver Dryer and Desiccant (Remove and Replace)
Correction Code 18202002
- 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.
- 2023-08-28: Added image for clarity.
- 2024-04-02: Added reminding of checking the pressure of A/C system before opening the accumulator.
Warning
HFO-R1234yf and R134a are considered
hazardous liquids and if handled incorrectly can cause serious injury. 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.
Note
The desiccant bag in the receiver dryer is a serviceable item and must be
replaced every 2 years, whenever the system is opened to ambient air for an extended
time, or when an A/C system leak has been fixed.
Note
The desiccant is located
in the RH condenser.
Removal
- Position the vehicle on a lift but do not lift it at this time.
-
Recover the A/C refrigerant from
the vehicle. See A/C Refrigerant Recovery and Recharge (Remove and Replace).
WarningMake 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.NoteWhile the HVAC machine is recovering the refrigerant, perform the following:
-
Clean the area around the plug before removal.
WarningPlease ensure to wear the Face Shield throughout the entire process to prevent foreign objects from flying out.
-
Remove and discard the plug and
the desiccant bag.
CAUTIONRemove and discard O-rings.
Installation
Installation procedure is the reverse of removal, except for the following:
CAUTION
Install a new
desiccant bag and a new plug (torque 12 Nm) immediately to prevent ingress of dirt
and moisture.
Note
Do not reuse
the plug.
- Perform a system vacuum and leak check. See A/C Refrigerant Recovery and Recharge (Remove and Replace).
-
While the HVAC machine is running
the vacuum and leak check, do the following:
- Reinstall the underhood aprons.
- Lower the vehicle.
- Charge the system with refrigerant. See A/C Refrigerant Recovery and Recharge (Remove and Replace).
- Perform a cooling system thermal test. See Cooling System - Thermal Test.