BMW 3: Cooling System
BMW 3 Series G20 (2018-2025) Training manual / B46TU-B48TU Engines / Cooling System
- Split cooling
- Heat management module
- Operating strategy
- Operating temperature
- Coolant pump
- Exhaust System
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Split cooling
Split cooling is a new development for the B46TU engine. This cooling concept
is a modified version
of which is already used in the N63TU2.
The Split Cooling function uses the electrical Split Cooli
Heat management module
The heat management module replaces the characteristic map thermostat.
Heat management module
Electrical Split Cooling Valve (SCV)
Coolant output towards the coolant pump
Electrical actuator
Rot
Operating strategy
The following graphic shows the positions of the rotary valve as the coolant
temperature increases:
Switching diagram heat management module
0% - Rotary valve closed
100% - Rotary valve open
Cold
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Washing the vehicle
General information
Regularly remove foreign objects such as leaves
in the area below the windshield when the hood
is raised.
Wash your vehicle frequently, particularly in winter.
Intense soiling and road salt can damage the
vehicle.
Steam blaster and high-pressure
washer
Safety information
NOTICE
Safety belt reminder for driver's
seat and front passenger seat
Display in the instrument cluster
The indicator light lights up and
a signal
sounds. Make sure that the safety belts
are positioned correctly. The safety belt
reminder can also be activated if objects are
placed on the front passenger seat.
Safety belt reminder for rear
seats
General information
Th
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