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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Assistance functions
General information
More than one assistance function can be active
at the same time.
The following assistance functions can be manually
activated:
"Parking aid lines".
"Obstacle mark.".
"Car wash".
The following assistance functions are automatically
displayed:
Side protection.
Door openin
Trunk lid
General information
To avoid locking the vehicle key in the vehicle,
do not place the remote control in the cargo
area.
Depending on the vehicle equipment and country
version, it is also possible to have the doors
unlocked. To perform settings.
The trunk lid cannot be opened when the vehicle
is in
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