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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IHKA, 3/2-zone
The climate control system is divided into two zones. The first digit "3"
represents the individually
adjustable temperature settings, the second digit "2" represents the zones in
which the amount of air
can be individually controlled.
In the G30, a 3/2-zone IHKA system is installe
System wiring diagram
Light Effect Manager
Fuses in the power distribution box, front right
Lighting for tweeter cover, passenger's side door
Lighting for mid-range speaker cover, passenger's side door
Lighting for mid-range speaker cover, rear passenger's side door
Fuses in the power distrib