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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Engine control unit
The new 8th generation of Bosch engine control units already used in the G12
is used in the G30.
Its appearance is characterized by a uniform housing and a uniform connector
strip. However, the
hardware inside has been adapted to the various applications.
Two engine control u
System overview of electric active stabilization in the G30
Electric active roll stabilization front (EARSV)
Front right vertical acceleration sensor
Auxiliary battery in the engine compartment
Rear right vertical acceleration sensor
Vertical Dynamics Platform (VDP)
Rear right power distribu