BMW 3: Introduction
BMW 3 Series G20 (2018-2026) Training manual / B46TU-B48TU Engines / Introduction
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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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Steptronic transmission: BMW
Digital Key
Concept
BMW Digital Key allows the vehicle to be unlocked
and locked, as well as started, with a
compatible smartphone.
General information
BMW Digital Key varies by country and may be
unavailable.
To unlock and start a vehicle with a compatible
smartphone, a digital key must be installed on
this s
Interior air quality, Automatic climate control
Interior air quality
The air quality in the vehicle is improved by the
following components:
Emission tested passenger compartment.
Microfilter.
Air conditioning system to control the temperature,
air flow and recirculated-air mode.
Depending on the equipment specification:
Microfilter/activ
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