Parts for your 2000 Subaru Forester-Ac compressor

2000 Subaru Forester AC compressor: what it does and how to look after it

The 2000 Subaru Forester is fitted with a belt-driven air-conditioning compressor as standard equipment on models with A/C. This is documented in the Subaru Factory Service Manual for the 2000 Forester (HVAC/Air Conditioner section), which specifies a magnetic-clutch compressor for an R‑134a system, and in Subaru’s genuine parts catalogue listing the “Compressor Assy – Air Conditioner” for MY2000 Forester (commonly noted under 73111FC0xx part numbers). DENSO’s service data for the period also covers the Forester’s compressor family used on EJ-series engines. So yes—an A/C compressor is absolutely relevant on a 2000 Forester.

The compressor’s core job is to circulate refrigerant and raise its pressure, so heat can be dumped at the condenser and cool air delivered inside. A magnetic clutch engages the compressor when the A/C is switched on, and the unit is lubricated by PAG oil mixed with the refrigerant. When the compressor is healthy, the Forester cools quickly, idles smoothly with A/C on, and runs quietly.

Common warning signs include weak cooling at idle, noisy operation (rattles, grinding), clutch slip, oil staining around the front seal, or metal debris in the suction screen. If the compressor seizes, the A/C belt can squeal or snap.

Good servicing practice helps these compressors live a long life. Run the A/C for 10–15 minutes every few weeks to keep seals lubricated. At each service, check belt condition and tension, listen for clutch or bearing noise, and make sure the condenser isn’t blocked with bugs or road grime. If performance drops, have a licensed technician recover, evacuate, and recharge the system to spec, incorrect refrigerant charge can cause poor cooling and premature wear.

• If replacing the compressor, always replace the receiver–drier/desiccant and all disturbed O‑rings, and add the correct amount of PAG oil.
• If there’s evidence of internal failure (metal swarf), flush the lines and condenser, and inspect/replace the expansion valve.
• Set the clutch air gap to spec and verify high/low-side pressures on restart.

Because handling refrigerant is regulated, repairs and re-gassing should be done by an ARCtick-licensed air-con technician in Australia or a certified HVAC tech in New Zealand. Using quality parts (OE or equivalent DENSO) and following Subaru service procedures will keep a 2000 Forester’s cabin cool and the compressor happy for the long haul.

Popular questions about the 2000 Subaru Forester A/C compressor

What refrigerant and oil does the 2000 Forester use?
The 2000 Forester’s compressor is designed for R‑134a refrigerant and PAG oil (commonly ND‑OIL 8). Total refrigerant charge is typically in the mid‑hundreds of grams, check the under‑bonnet label or Subaru service data for the exact market-spec figure. Using the correct oil type and quantity is critical for compressor life.

Can the compressor clutch be replaced without removing the compressor?
Often, yes. If the issue is limited to the clutch, pulley or bearing, many technicians can service the clutch assembly in the car without opening the refrigerant circuit. Special tools and correct clutch air-gap setup are required, and access around the front of the compressor must be adequate.

What are the signs the Forester’s compressor is failing?
Little to no cold air, a chattering or grinding noise with A/C on, repeated belt squeal, metal particles found in the system, or high head pressures on a gauge set are all red flags. Address issues early to avoid contamination of the rest of the A/C system.