AC Expansion Valve for Nissan Compacts ❄️
Restore crisp cabin cooling with this direct-fit refrigerant metering valve for the air-conditioning system. It stabilizes vent temperature, protects the compressor, and balances pressures across the A/C loop for long service life.
Why you need it
Without precise control of refrigerant flow, the evaporator can flood or starve. This valve matches flow to heat load, preventing liquid slugging, icing, and weak cooling. Expect faster pull-down, steady idle performance, and reduced clutch cycling. It’s an OE-style fit, built for clean sealing and reliable daily use.
How it works
A thermal bulb senses outlet temperature and pressure. That signal moves a diaphragm, positioning a needle against a calibrated orifice. High-pressure liquid expands into a low-pressure mist, absorbing cabin heat inside the evaporator. The aluminum block, precise passages, and fresh O‑rings ensure tight sealing and consistent superheat control.
If it fails ⚠️
Stuck open: frosted evaporator, weak airflow, fog at vents, possible compressor knock. Stuck closed: warm air, high head pressure, rapid cycling. Running it broken can overheat the compressor and contaminate the circuit. During replacement, renew the desiccant, evacuate to deep vacuum, and charge by weight for best results.
Compatibility
- Sunny/Almera/Versa
- Sunny
- Micra
- Micra Active
