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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Shift elements
Brakes and clutches are described as shift elements which make possible the
shifting and changing
of all gears. Like in the GA8HP70Z transmission, the following shift elements
are also used in the
GA8P75HZ transmission:
2 fixed multidisc brakes (brakes A and B)
3 rotary multidisc clutches (clut
Apple CarPlay preparation
Concept
CarPlay allows certain functions of a compatible
Apple iPhone to be used via Siri voice operation
and iDrive.
General information
Depending on the country-specific version, Car‐
Play may not be available. Contact a dealer's
service center or another qualified service center
or repair shop
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