Parts for your 2005 Mitsubishi Pajero-Receiver driers

2005 Mitsubishi Pajero receiver‑drier: what it does and when to replace it

Technical sources confirm the 2005 Mitsubishi Pajero uses a receiver‑drier in its air‑conditioning system. The Mitsubishi Pajero/Montero V60/V70 (2000–2006) workshop manual (Group 55 – Air Conditioning), DENSO A/C components guidance for TXV systems, and AU/NZ parts catalogues listing direct‑fit driers for NM/NP Pajero variants all show a TXV‑type system with a receiver‑drier fitted. On many 2005 Pajeros it’s a separate canister near the condenser, some sub‑cool condenser variants house a replaceable drier cartridge.

In this Pajero, the receiver‑drier plays three key roles: it stores liquid refrigerant, filters out debris, and absorbs moisture with a desiccant pack. That moisture control is critical—water in the circuit can form acids, corrode components, and freeze at the thermal expansion valve, hammering cooling performance and risking compressor damage. By ensuring a steady supply of clean, dry, liquid refrigerant to the TXV, the drier keeps cabin temps stable and the compressor safe.

Servicing advice for this model is straightforward and aligns with manufacturer and supplier guidance: replace the receiver‑drier any time the A/C system has been opened to atmosphere, after a compressor failure, or if the vehicle has sat for a long period with the A/C lines disconnected. Many technicians also swap it during major A/C overhauls or when replacing the condenser on variants with an internal cartridge.

• Recommended replacement triggers: system opened, compressor replacement, contaminated oil, or visible desiccant breakdown.
• Good practice: renew O‑rings, add the correct PAG oil amount for the drier, evacuate under deep vacuum, then recharge with R134a to the specified mass using manifold gauges.

Signs the Pajero’s drier may be saturated or restricted include poor cooling at idle, high head pressures on gauge readings, temperature swings at the vents, or a hissing/whistling TXV. Because most 2005 Pajeros don’t use a sight glass, diagnosis is gauge‑ and temperature‑based rather than visual.

Fitment notes: if the drier is a separate canister, it’s typically mounted by the condenser on the front support panel. If integrated, either replace the condenser assembly or the specific drier insert as specified. A licensed A/C technician should handle evacuation and regas to meet AU/NZ regulations and ensure the system is tight, clean, and charged correctly.

• Where is the receiver‑drier on a 2005 Pajero?
  The Pajero usually has the drier mounted next to the condenser behind the grille, in a vertical canister with two line fittings. Some variants use a sub‑cool condenser with an internal drier cartridge, in those cases, the cartridge sits inside the condenser end tank.
• How often should it be replaced?
  There’s no fixed time interval. Replace it whenever the system is opened, after compressor failure, or if there’s suspected moisture/contamination. Many workshops change it proactively during major A/C work to protect the TXV and compressor.
• Does replacing the drier mean the A/C must be regassed?
  Yes. Opening the circuit introduces air and moisture. After installing the new drier, the system needs vacuum evacuation and an R134a recharge by a licensed technician to restore correct pressures and cooling performance.