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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Telephone functions
General information
Mobile phones can be connected to the vehicle
via Bluetooth, see Owner's Manual for the vehicle.
At high temperatures, the charge function of the
mobile phone can be limited where appropriate
and functions are no longer executed.
Do not operate a mobile phone that is connected
Automatic climate control - switching on/off
Switching on
Press any button except for the following:
Switching off.
Rear window defroster.
Lower air flow button side.
Seat heating.
Switching off
Complete system:
Press the button until the
control panel
switches off.
Temperature
Concept
The automatic climate control achieves the set
temp
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