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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Frequently Asked Questions
All requirements are met and all required steps
were completed in the specified order. Despite
that, the mobile device does not function as expected.
In this case, the following explanations can help:
Why could the mobile phone not be paired or
connected?
There are too many Bluetooth devices conn
Managing mobile devices
General information
After one-time pairing, the devices are automatically
recognized and reconnected when
standby state is switched on.
After stored content on the SIM card or the
mobile phone, such as contacts, has been
detected, the data is transmitted to the vehicle
and can be used via iD
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