BMW 5 Series: Crankshaft drive
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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
Up
Valve gear
VANOS
VANOS B58 engine
VANOS B58TU engine
Following the changeover from a two-part chain drive to a single-part chain
drive, the camshaft
sprockets on the VANOS now need 46 teeth instead of the
SEE MORE:
xDrive
Concept
xDrive is the all-wheel-drive system of the vehicle.
The interaction of xDrive and DSC Dynamic
Stability Control further optimizes traction and
driving dynamics. xDrive variably distributes the driving forces to the front
and rear axles as demanded
by the driving situation and road surface
Operating strategy of the heat management module
The following graphic shows the positions of the rotary valve as the coolant
temperature increases.
Circuit diagram of heat management module in B58TU engine
0 % - Rotary valve closed
100% - Rotary valve open
Cold start
Warm-up phase
Operating temperature
Transition from normal operatio
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