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.
READ NEXT:
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
SEE MORE:
System limits
Certain noises can be detected and may lead
to problems. Keep the doors, windows, and
glass sunroof closed.
Noises from the front passenger or the rear
seat bench can impair the system. Avoid
making other noise in the vehicle while
speaking.
Major language dialects can cause problems
with
Operation
General information
This chapter describes functions that are operated
in a different way to the way they are operated
in the front, or are only available in the rear.
Music hard disk
Saving of music via CD/DVD is only possible
in front.
The export and import of data is only possible
via the US
© 2019-2025 Copyright www.bmw3g20.com
