BMW 3: B46TU-B48TU Engines
BMW 3 Series G20 (2018-2025) Training manual / B46TU-B48TU Engines
- Introduction
- Engine Mechanical
- Engine housing, Crankshaft drive
- Connecting rod - Crankshaft drive
- IROX coating - Crankshaft drive
- Chain drive - Crankshaft drive
- Chain tensioner
- Valve gear
- Belt drive
- Cooling System
- Split cooling
- Heat management module
- Operating strategy
- Operating temperature
- Coolant pump
- Exhaust System
- Fuel System
- Engine Electrical System
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Innovations B46TU/B48TU
Innovations B46TU
To meet the legal requirements for emissions, a number of technical
improvements have been
implemented. The technical updates for the B46TU engine include the following
new feature
Engine identification
B46TU engine
Engine identification - transverse mounted shown
B48TU engine
Engine identification - transverse mounted shown
Engine number
Engine identification
The 7-digit engine identification
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Transferring digital keys
The vehicle owner can transfer a digital key for
his/her vehicle to another person with a compatible
smartphone via the BMW Connected app.
When a digital key is transferred, a transaction
number TAN will be generated. Another person
can pair the digital key in the vehicle with this
TAN and the Digi
Managing mobile devices
General information
After one-time pairing, the devices are automatically
recognized and reconnected when
standby state is switched on.
After stored content on the SIM card or the
mobile phone, such as contacts, has been
detected, the data is transmitted to the vehicle
and can be used via iD
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