BMW 3: B46TU-B48TU Engines
BMW 3 Series G20 (2018-2026) 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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In the vicinity of the steering wheel
Safety switch
Power windows
Exterior mirror operation
Central locking system
Unlocking
Locking
Seating comfort features
Memory function
Lights
Front fog lights
Light switch
Lights off
Daytime running lights
Parking lights
Automatic headlight control
Adaptive light functions
Removing the round high-voltage connector
The following figures show the approach for releasing the round high-voltage
connector, as used
for example on the high-voltage cable from the Electrical Machine Electronics to
the convenience
charging electronics.
Depending on the installation location, different connectors may be used. They
ar
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