Behr Hella Service

376755111

Behr Hella Service 376755111 Engine Coolant Reservoir (BMW)

EAN: 4045621383480

Expansion Valves & Parts

Surge tank BMW E46, X3, X5
The demands for engine cooling systems are constantly increasing. New solutions aim to have a positive impact on fuel consumption, emissions, driving comfort and driving safety via heat transfer
Behr Hella Service products are distinguished by their quality, reliability and long service life. The OE know-how and the expertise at behr are crucial and directly influence our product development

Behr Hella Service combines for more then 10 years outstanding service expertise with high-quality and extensive product range. The expansion tank is used to trap the expanding coolant from the coolant circuit. High coolant temperature results in the pressure in the cooling system rising as the coolant expands. The increase in pressure is dissipated by valves integrated into the cap of the expansion tank. If the pressure increases, the system pressure is reduced by the valve and brought back to the preset value. When the coolant temperature returns to normal, a partial vacuum forms in the cooling system. This in turn results in the vacuum compensation valve in the tank's filler cap opening. Ambient air flows into the tank until the preset system pressure is reached again.

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