BMW 5 Series: Crankcase
Honing process
Honing process "old/new"
- Previous manufacturing process of internal cylindrical honing
- New manufacturing process of form honing
The cylindrical bore hole of a combustion engine becomes deformed during the operating condition by thermal loads. Form honing allows this deformation to be achieved in production, so that there is an almost cylindrical shape in the operating condition. This has a positive effect on the emissions quality, oil and fuel consumption, as well as output and wear.
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Chain drive
Features:
Chain drive at the side of the engine emitting the forces
Single-part chain drive for driving the camshafts
Single sleeve-type chain 8 mm
Electric motor of the combined oil-vacuum
Chain track
Comparison between chain track of B58 engine and B58TU engine
Chain track, two-part timing chain drive B58 engine
Chain track, single-part timing chain drive B58TU engine
6-cylinder engine
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Person warning with City
braking function
Concept
The system may prevent some accidents with
pedestrians. When driving at city speeds, the
system will issue a warning if there is imminent
risk of a collision with pedestrians, and support
with a braking function.
General information
The system is active at speeds of approx.
3 mph/5 km/h up t
Ambient air package
Concept
The Ambient Air Package can be used to clean
and scent the interior air with high-quality fragrances.
Ionization is used to clean the air from suspended
particles. Together with the selected fragrance, ionization contributes to
well-being and
relaxation while driving.
General information
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