Section 165 (Engine Cooling System (H4SO)): General Description: Specification
WARNING: This page is about a different car, the 2008 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
GENERAL SPECIFICATION
| Cooling system | Electric fan + Forced engine coolant circulation system | ||||
| Total engine coolant capacity | l (US qt, lmp qt) | MT: approx. 6.8 (7.2, 6.0) AT: approx. 6.7 (7.1, 5.9) |
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| Water pump | Type | Centrifugal impeller type | |||
| Discharge performance I | Discharge rate | l (US gal, lmp gal) /min | 20 (5.3, 4.4) | ||
| Pump speed - Discharge pressure | 760 rpm - 2.9 kPa (0.3 mAq) | ||||
| Engine coolant temperature | 80°C (176°F) | ||||
| Discharge performance II | Discharge rate | l (US gal, lmp gal) /min | 100 (26.4, 22.0) | ||
| Pump speed - Discharge pressure | 3,000 rpm - 49 kPa (5.0 mAq) | ||||
| Engine coolant temperature | 80°C (176°F) | ||||
| Discharge performance III | Discharge rate | l (US gal, lmp gal) /min | 200 (52.8, 44.0) | ||
| Pump speed - Discharge pressure | 6,000 rpm - 225.4 kPa (23 mAq) | ||||
| Engine coolant temperature | 80°C (176°F) | ||||
| Impeller diameter | mm (in) | 76 (2.99) | |||
| Number of impeller vanes | 8 | ||||
| Pump pulley diameter | mm (in) | 60 (2.36) | |||
| Clearance between impeller and case | Standard | mm (in) | 0.5 - 1.5 (0.020 - 0.060) | ||
| Thermostat | Type | Wax pellet type | |||
| Starting temperature to open | 80 - 84°C (176 - 183°F) | ||||
| Fully opens | 95°C (203°F) | ||||
| Valve lift | mm (in) | 9.0 (0.354) or more | |||
| Valve bore | mm (in) | 35 (1.38) | |||
| Radiator fan | Motor input | Main fan | 90 W | ||
| Sub fan | 90 W | ||||
| Fan diameter / Blade | Main fan | 300 mm (11.81 in)/4 | |||
| Sub fan | 300 mm (11.81 in)/5 | ||||
| Radiator | Type | Down flow, pressure type | |||
| Core dimensions | Width x Height x Thickness | mm (in) | 687.4 x 340 x 16 (27.06 x 13.39 x 0.63) | ||
| Pressure range in which cap valve is open | kPa (kg/cm2 , psi) | Above: 108 ± 15 or more (1.1 ± 0.15, 16 ± 2) Below: -1.0 to -4.9 or less (-0.01- -0.05,-0.1- -0.7) | |||
| Fins | Corrugated fin type | ||||
| Reservoir tank | Capacity | l (US qt, lmp qt) | 0.45 (0.48, 0.40) | ||
GENERAL SPECIFICATION
| Coolant | Recommended materials | Item number | Alternative |
|---|---|---|---|
| Coolant | SUBARU coolant | 000016218 | Phosphoric acid (non-amine) type |
| Water for dilution | Distilled water | - | Soft water or tap water |
| Cooling system protective agent | Cooling system conditioner | SOA345001 | None |
GENERAL SPECIFICATION
| Vehicle speed | A/C compressor load | Engine coolant temperature | ||
|---|---|---|---|---|
| Increase: 95°C (203°F) or less Decrease: 92°C (198°F) or less | Increase: 96 - 99°C (205 - 210°F) Decrease: 93 - 94°C (199 - 201°F) | Increase: 100°C (212°F) or more Decrease: 95°C (203°F) or more | ||
| Radiator fan operation | Radiator fan operation | Radiator fan operation | ||
| During acceleration: 19 km/h (12 MPH) or less During deceleration: 10 km/h (6 MPH) or less | OFF | OFF | Low-Speed | High-Speed |
| Low | Low-Speed | Low-Speed | High-Speed | |
| High | High-Speed | High-Speed | High-Speed | |
| During acceleration: 20 - 69 km/h (12 - 43 MPH) During deceleration: 11 - 64 km/h (7 - 40 MPH) | OFF | OFF | Low-Speed | High-Speed |
| Low | High-Speed | High-Speed | High-Speed | |
| High | High-Speed | High-Speed | High-Speed | |
| During acceleration: 70 - 134 km/h (43 - 83 MPH) During deceleration: 65 - 129 km/h (40 - 80 MPH) | OFF | OFF | Low-Speed | High-Speed |
| Low | OFF | Low-Speed | High-Speed | |
| High | Low-Speed | High-Speed | High-Speed | |
| During acceleration: 135 km/h (84 MPH) or more During deceleration: 130 km/h (81 MPH) or more | OFF | OFF | OFF | High-Speed |
| Low | OFF | Low-Speed | High-Speed | |
| High | OFF | Low-Speed | High-Speed | |