Parts for your 2015 Mitsubishi Outlander-Tx valve

2015 Mitsubishi Outlander TX Valve — what it does and when to replace it

Technical sources including the Mitsubishi Motors Service Manual (Group 55: Heating, Ventilation & Air Conditioning) for the 2014–2016 platform, the Mitsubishi ASA electronic parts catalogue for 2015 GF/GG Outlander, and OEM parts diagrams confirm the air‑conditioning system uses a thermostatic expansion valve (TX valve) mounted at the evaporator. So yes, the 2015 Mitsubishi Outlander is fitted with a TX valve and it’s absolutely relevant when servicing the A/C.

The TX valve’s job is to meter refrigerant into the evaporator based on temperature and pressure, keeping the evaporator just on the chilly side of optimal. That balance delivers cold air without freezing the core and helps the compressor work efficiently. When the TX valve starts sticking or going out of spec, drivers often notice vent temperatures swinging hot–cold, warm air at idle that cools again on the move, or frosty pipes near the firewall.

There’s no scheduled replacement interval for the TX valve on an Outlander, but it’s a common replace-on-condition part. Any time there’s compressor failure, system contamination (metal, sludge, or moisture), or recurring poor cooling after a correct re-gas, a new TX valve is smart insurance alongside a receiver/drier or desiccant bag replacement. It’s fitted at the evaporator connections (behind the glovebox area on most variants), so access is tighter than a simple under‑bonnet job.

• Tell-tale signs: fluctuating A/C performance, icing at the evaporator lines, abnormal high/low gauge readings, or a system that won’t cool even with the correct refrigerant weight.
• Best practice on replacement: recover the refrigerant properly, cap open lines, replace O‑rings and gaskets, lubricate with the correct PAG oil, torque to spec, evacuate for an adequate period, and recharge by mass—not pressure.
• Good servicing habits: keep the cabin filter clean, ensure the condenser is free of debris, and always use the manufacturer‑specified refrigerant and oil type.

Because venting refrigerant is illegal and unsafe, the job belongs with an ARCtick‑licensed (AU) or appropriately certified (NZ) A/C technician. They’ll pressure‑test, vacuum, and weigh the charge so the TX valve can do its thing. When replaced and charged correctly, the Outlander’s air‑con is typically crisp, quiet, and consistent—just how it should be on a hot Aussie or Kiwi afternoon.

Popular questions

Where is the TX valve on a 2015 Mitsubishi Outlander?
On most 2015 Outlander variants, the TX valve is mounted at the evaporator connections, behind the dash on the passenger side, accessed via the glovebox area. It’s secured with small bolts and sealed with O‑rings or gaskets.

Because access involves the HVAC housing and refrigerant lines, it’s best handled by an A/C technician with the right recovery and re‑charge gear.

Does the 2015 Outlander use a TX valve or an orifice tube?
It uses a thermostatic expansion valve (TX valve). This is documented in the Mitsubishi Service Manual (Group 55) and the Mitsubishi ASA parts catalogue for the 2015 GF/GG series, both listing an “expansion valve” at the evaporator.

When should the TX valve be replaced, and can it be cleaned?
Replace it if it’s sticking, contaminated after a compressor failure, or if cooling issues persist despite a correct re‑gas and leak‑free system. TX valves aren’t designed to be cleaned or overhauled—replacement is the reliable fix.

Always pair the job with new O‑rings and a system evacuation and recharge by weight to restore proper performance.