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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SEE MORE:
The control units on the local CAN are not displayed in the bus overview by
the BMW diagnosis
system ISTA. Diagnosis takes place via the corresponding primary control unit.
Radar sensor (primary)
Radar sensor, left (RSL) and radar sensor, right (RSR)
The control units for the radar sensor, front r
Overview of luggage compartment
Battery
Power distribution box, battery, right
Power distribution box, rear
Power Control Unit (PCU) 500 W
Power Control Unit (PCU) 150 W
Power distribution box with safety battery terminal
Battery
Separator
Auxiliary battery, luggage compartment
The vehicl