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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Set up map
Set up
1. Press the button on the
Controller.
2. Move the Controller to the right.
3. "Map settings".
4. Select the desired setting:
"Map view": select the map view.
"Direction of travel"
"Facing north"
"Perspective"
"Zoom": select scale.
"Auto zoom": with active destination
gui
Tire inflation pressure
General information
The tire characteristics and tire inflation pressure
influence the following:
The service life of the tires.
Road safety.
Driving comfort.
Fuel consumption.
Safety information
Warning
A tire with too little or no tire inflation pressure
may heat up significantly and sustai
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