BMW 5 Series: Coolant pump
The layout and function of the coolant pump have been revised and adapted to match the cooling concept of the Bx8 TU engines.
Coolant pump, Bx8TU engine
- Pressure relief valve closed (pressure < 2.1 bar)
- Pressure relief valve opened (pressure > 2.1 bar)
A pressure relief valve is installed in the mechanical coolant pump housing. In combination with the heat management module, the pressure relief valve on the one hand ensures that the engine operating temperature is reached more quickly, while at the same time reducing leaks and component damage due to high pressure in the cooling system.
If an excess pressure of more than 2.1 bar builds up in the coolant circuits, the pressure relief valve opens and releases a bypass channel. The coolant is now exclusively circulated in the pump body.
Once the pressure drops below 2.1 bar or the engine speed rises above 3000 rpm, the pressure relief valve closes and the coolant is again routed through the engine's coolant ducts.
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Non-return valve
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Exhaust turbocharger in the B58TU engine
Exhaust turbocharger made of steel, for cylinder head-integrated exhaust
manifold ZIAK¹
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Concept, General information, Safety information
Concept
The lane departure warning alerts when the vehicle
on roads with lane markings is about to leave
the lane.
General information
This camera-based system warns starting at a
minimum speed.
The minimum speed is country-specific and is
displayed in the menu for the intelligent Safety
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Displaying Points of Interest on
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Concept
The Points of Interest categories can be displayed
on the map as symbols.
Selecting categories
1. Press the button on the
Controller.
2. Move the Controller to the right.
3. "Settings".
4. "Map settings".
5. "Points of interest on the map".
6. Select the desired setting.
The display
