Parts for your 1999 Mitsubishi Pajero-Receiver driers

1999 Mitsubishi Pajero Receiver‑Drier: purpose, fitment and service tips

Technical references confirm the 1999 Mitsubishi Pajero uses a receiver‑drier in its air‑conditioning system. The Mitsubishi workshop manual (Heater & Air Conditioner section) describes a high‑side receiver‑drier in TXV‑type systems used on Pajero/Montero of this era, and Mitsubishi’s ASA parts catalogue and major A/C catalogues from Denso and Nissens list a receiver‑drier for 1999 Pajero variants. On many V2x/V4x models it’s a separate canister mounted near the condenser, some late builds use a condenser with an integrated drier cartridge. So, the receiver‑drier is absolutely relevant on a 1999 Pajero.

What does it do? The receiver‑drier sits on the high‑pressure side, storing liquid refrigerant, filtering debris, and using a desiccant to pull moisture from the system. Keeping moisture out prevents acid formation and freeze‑ups at the TXV, protects the compressor, and helps deliver consistent cabin temps. Some Pajeros have a pressure switch or sight glass associated with the drier assembly, depending on market and build.

When should it be replaced? Best practice is any time the A/C system has been opened to atmosphere (hose off, condenser out, compressor swap), after a compressor failure, or as preventative maintenance every few years—especially in humid Aussie and Kiwi conditions. Desiccant doesn’t last forever, once saturated, it can’t protect the system.

• Have a licensed technician recover refrigerant, replace the drier and all disturbed O‑rings (HNBR), and add the correct amount of PAG oil for the drier change.
• If the drier is integrated into the condenser, replace the condenser or the serviceable cartridge as specified.
• Evacuate under deep vacuum and recharge to the Pajero’s R134a spec, don’t leave the system open—cap lines immediately.

Symptoms that suggest the drier’s past it include poor cooling at idle, compressor chatter, frosting near the TXV, high high‑side pressures, or visible contamination when components are inspected. Corrosion on an external canister is also a cue to renew it. Replacing the receiver‑drier is low‑cost insurance that helps the Pajero’s A/C stay icy‑cold through hot summers and long gravel trips alike.

• Note: Refrigerant handling is regulated in AU/NZ—always use an ARCtick‑licensed (AU) or appropriately certified (NZ) technician.

Popular questions

Does a 1999 Pajero have a receiver‑drier and where is it?
Yes. It’s on the high‑pressure side near the condenser at the front. Many have a separate canister bolted ahead of the radiator support, some late 1999 builds use a condenser with a built‑in drier cartridge.

How often should the receiver‑drier be replaced?
Any time the system is opened, after compressor failure, and as preventative maintenance every 3–5 years in humid climates. It keeps moisture and debris at bay, protecting the compressor and TXV.

Is it safe to keep driving with a saturated or blocked receiver‑drier?
The A/C may still run, but it risks poor cooling, high pressures, and compressor damage. Have an A/C tech test, recover, and renew the drier to avoid bigger bills.