BMW 3: Coolant pump
The layout and function of the coolant pump have been revised and adapted to match the cooling concept of the B46TU/B48TU engines.
Coolant pump
- Pressure relief valve closed (pressure < 2.2 bar / 32 psi)
- Pressure relief valve opened (pressure > 2.2 bar / 32 psi)
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 2.2 bar (32 psi) builds up in the coolant circuit, 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 2.2 bar (32 psi), the pressure relief valve closes and the coolant is again routed through the coolant ducts.
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Exhaust System
Exhaust turbocharger
Exhaust turbocharger
The exhaust turbocharger can be replaced individually and is exclusively made
of steel. The boost
charge pressure is still controlled by an electrical waste
Fuel System
The fuel system is made up of the fuel supply and fuel preparation systems.
The fuel supply includes
the fuel tank with all mounted parts and the fuel lines up to the engine
compartment.
The fuel p
Fuel preparation
The fuel preparation has again been adapted to meet the emission legislation
requirements. The high
pressure pump and the injectors have been revised and designed for an fuel
injection pressure of
3
SEE MORE:
Overview
G20 PHEV, system overview of climate control - Installation locations
Combined expansion and shutoff valve at the evaporator
Combined expansion and shutoff valve at the high-voltage battery unit
High-voltage battery unit
Refrigerant lines to high-voltage battery unit
Evaporator, passenge
Entering a destination via
address
General information
Enter at least the country and the town/city for
the address. Destination guidance is started to
the town/city center if no street is entered.
Selecting the state/province
1. Press the button on the
Controller.
2. "Classic input".
3. "State/Province".
4. Select the country
