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 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
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
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:
To achieve an optimum listening experience inside
the vehicle, depending on the type of music,
you can choose between different sound profiles.
The surround sound can be adjusted with the
"3D intensity" or "Surround intensity" function.
1. "CAR".
2. "Settings".
3. "General settings".
4. "Bowers
Media at a glance
You can use various media formats to call up the
content in the Owner's Manual. The following
Owner's Manual media formats are available:
Printed Owner's Manual.
Integrated Owner's Manual in the vehicle.
Validity of the Owner's Manual
Production of the vehicle
At the time of pr