BMW 3: Valve gear
VANOS
VANOS unit B46 engine and B46TU/B48TU engines
- VANOS B46 engine
- VANOS B46TU and B48TU engine
Following the changeover from a two-part chain drive to a single-part chain drive, the camshaft sprockets on the VANOS now have 46 teeth instead of the previous 36 teeth. To compensate for the additional weight of the larger camshaft sprockets, the adjuster was designed to be shorter and more compact. Additionally, the chain track was displaced by 1.5 mm.
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Belt drive
Comparison belt drive B46 engine and B46TU/B48TU engines
B46 Engine (transverse installation shown)
B46TU/B48TU engines (transverse installation shown)
Deflecting element
Alternator
Coolant p
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
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Bluetooth audio
General information
Playback of music files on external devices
such as audio devices or mobile phones via
Bluetooth.
The volume of the sound output depends on
the device. If necessary, adjust the volume on
the device.
Up to four external devices can be connected
to the vehicle.
Functional
General information
Media at a glance
You can use various media formats to call up the
content in the Owner's Manual. The following
Owner's Manual media formats are available:
Printed Owner's Manual.
Integrated Owner's Manual in the vehicle.
Validity of the Owner's Manual
Production of the vehicle
At the time of pr
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