Section 12 (Engine Cooling System (HEV)): General Description: Specification
WARNING: This page is about a different variant/trim than selected.
| Cooling system |
Electric fan + Forced engine coolant circulation system |
| Total engine coolant capacity |
L (US qt, Imp qt) |
Engine side |
Approx. 8.0 (8.5, 7.0) |
| Inverter assembly side |
Approx. 3.4 (3.6, 3.0) |
| Water pump |
Type |
Centrifugal impeller type |
| Pump characteristics |
Discharge rate |
L (US gal, Imp gal)/min |
214 (56.5, 47.1) or more |
| Engine coolant temperature |
°C (°F) |
80 (176) |
| Engine coolant concentration |
% |
50 |
| System pressure |
kPa (mAq) |
88 (8.9) |
| Pump speed |
r/min |
8, 580 |
| Impeller diameter |
mm (in) |
56 (2.20) |
| Number of impeller vanes |
pcs. |
7 |
| Pump pulley effective diameter |
mm (in) |
100 (3.94) |
| Inverter water pump |
Motor input |
W |
70 or less |
| Flow rate |
L (US gal, Imp gal)/min |
MAX 13 (3.4, 2.9) or more |
| Thermostat |
Type |
Wax pellet type |
| Starting temperature to open |
°C (°F) |
90 - 94 (194 - 201) |
| Full open temperature |
°C (°F) |
100 (212) |
| Valve lift |
mm (in) |
8.0 (0.315) or more |
| Valve opening size |
mm (in) |
32 (1.26) |
| Radiator fan |
Motor input |
W |
Main fan |
160 |
| Sub fan |
160 |
| Fan outer diameter |
mm (in) |
Main fan |
300 (11.8) |
| Sub fan |
300 (11.8) |
| Number of fan blades |
pcs. |
Main fan |
9 |
| Sub fan |
11 |
| Radiator |
Type |
Side flow, pressure type |
| Core dimensions |
mm (in) |
Width x Height x Thickness |
(649.2 x 376.2 x 27) (25.56 x 14.81 x 1.06) |
| Pressure range in which cap valve is open |
kPa (kg/cm2
, psi) |
Positive pressure side |
Standard |
93 - 123 (0.95 - 1.25, 14 - 18) |
| Limit |
83 (0.85, 12) |
| Negative pressure side |
Standard |
-1.0 4.9 or less (-0.01 0.05, -0.1 0.7) |
| Fin shape |
Corrugated fin |
| Water tank pipe |
Pressure range in which cap valve is open |
kPa (kg/cm2
, psi) |
Positive pressure side |
Standard |
122 - 152 (1.24 - 1.55, 18 - 22) |
| Limit |
112 (1.14, 16) |
| Reservoir tank |
Capacity |
L (US qt, Imp qt) |
0.45 (0.48, 0.40) |
| Inverter tank |
Capacity |
L (US qt, Imp qt) |
0.61 (0.64, 0.54) |
| Pressure range in which cap valve is open |
kPa (kg/cm2
, psi) |
Positive pressure side |
Standard |
93 - 123 (0.95 - 1.25, 14 - 18) |
| Limit |
83 (0.85, 12) |
| Negative pressure side |
Standard |
-1.0 4.9 or less (-0.01 0.05, -0.1 0.7) |
| |
Recommended materials |
Item number |
Alternative |
| Engine coolant (engine side and inverter assembly side) |
SUBARU SUPER COOLANT (concentrated type) |
- |
- |
| SUBARU SUPER COOLANT (diluted type) |
K0670Y0001 |
| Water for dilution |
Distilled water |
- |
Soft water or tap water |
| Cooling system protective agent |
Cooling system conditioner |
SOA345001 |
- |