Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
When replacing compressor
Compressor oil is sealed in each new compressor (1) by the amount required for air conditioner cycle. Therefore, when using a new compressor for replacement, drain oil from it by the amount calculated as follows.
- "C" = "A" - "B"
- "C": Amount of oil to be drained
- "A": Amount of oil sealed in a new compressor
- "B": Amount of oil remaining in removed compressor
- Oil 99000-27080 (H25 engine model)
- Oil 99000-99022-00E (H27 engine model)
Amount of oil in new compressor
- H25 engine model: 100 cm3 (100 cc)
- H27 engine model with dual A/C: 200 cm3 (200 cc)
- H27 engine model with single A/C: 150 cm3 (150 cc)
Amount of compressor oil to be replenished after part replacement
- Evaporator: 50 cm3 (50 cc)
- Rear evaporator for H27 engine model with dual A/C: 50 cm3 (50 cc)
- Condenser for H25 engine model: 15 cm3 (15 cc)
- Condenser for H27 engine model: 30 cm3 (30 cc)
- Receiver/dryer for H25 engine model: 20 cm3 (20 cc)
- Receiver/dryer for H27 engine model: 10 cm3 (10 cc)
- Hoses: 10 cm3 (10 cc)
- Pipes: 10 cm3 (10 cc)
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.