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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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
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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Why can the current position not be displayed?
The vehicle is located in an unrecognized region,
is in a poor reception area, or the system
is currently determining the position.
Reception is usually best when you have an
unobstructed view of the sky.
Why does destination guidance not accept
Concept
Additional information for the navigation can be
displayed in the right part of the split screen.
Switching on/off
1. Press the button on the
Controller.
2. Move the Controller to the right.
3. "Split screen".
4. "Split screen"
Selecting the display
1. Press the button on the
Controller