Cooling System - Lotus ELISE 2007 Owner's Handbook Manual

Air bleed plug
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Cooling System

The engine cooling system uses a header tank to ensure that
the system remains completely filled, and also to accommodate
expansion of the coolant with increasing engine temperature.
The tank is mounted at the left hand side of the engine bay, and
is fitted with a 108 kPa (15 psi) pressure cap to raise the boiling
point of the coolant to over 120°C (250°F).
WARNING:
• Do NOT attempt to remove the pressure cap or air bleed
plug from the header tank when the engine is warm
as serious scalding could result from boiling water
and/or steam.
• Coolant is hazardous to your health and may be fatal
if swallowed.
• Keep coolant out of reach of children.
• Coolant is hazardous to animals and may be fatal if
swallowed. Clean up spilled coolant and do not leave in
open containers.
The level of coolant in the translucent header tank will rise
as the engine warms up, and fall as it cools down, and under
normal circumstances it should not be necessary to add any
coolant to the system between services. If overfilled, the excess
coolant will be ejected when the engine is warm. If underfilled,
overheating may result.
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Coolant header tank cap
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