3360118 - 1088B ENGINE COOLING RADIATOR
SUPPLY RESERVOIR
In addition to supplying the circuit, the coolant reservoir absorbs the variations in the volume of the coolant as the temperature of the engine varies.A special calibrated valve in the pressurised cap assures the following:
- escape of air from the circuit collected by the pipe coming from the thermostat
- air intake when the circuit contains a vacuum (due to engine cooling).