BMW 5 Series Owners & Service Manuals

BMW 5 Series: Crankcase

BMW 5 Series G30 2016-2026 Training Manual / B58TU Engine / Engine Mechanical / Engine housing / Crankcase

Honing process

Engine housing
Honing process "old/new"

  1. Previous manufacturing process of internal cylindrical honing
  2. 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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     Crankshaft drive

     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

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     External devices

    General information External devices can also be connected to the vehicle as additional entertainment sources. Connection of external audio and video devices or digital cameras via the HDMI in the rear. Operation takes place on the external device. Connection of external devices via the USB a

     Cylinder head

    The following figures show the two cylinder head variants with and without the cylinder head-integrated exhaust manifold. Cylinder head of B58TU engine Cylinder head with integrated exhaust manifold ZIAK¹ Cylinder head without integrated exhaust manifold nZIAK² ZIAK¹ = cylinder head-integra

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