BMW 3: Connecting rod - Crankshaft drive
BMW 3 Series G20 (2018-2025) Training manual / B46TU-B48TU Engines / Engine Mechanical / Connecting rod - Crankshaft drive
Connecting rod
- Piston
- Area transferring the force
- Wrist pin
- Connecting rod bearing with shaped bore hole
- Connecting rod
- Connecting rod bearing (B46TU only)
- Small connecting rod eye (trapezoidal shape)
- Large connecting rod eye (cracked)
- Connecting rod bolts of the connecting rod bearing cap
- Connecting rod bearing shell of the connecting rod bearing cap
- Connecting rod bearing shell of the connecting rod (IROX-coated)
The drop-forged cracked connecting rods with IROX coating are known from the B38/B46 engines.
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IROX coating - Crankshaft drive
Detailed magnification of the IROX coating
IROX-coated bearing shell
Oil film
IROX coating
Bearing shell
Binding resin
Hard particle
Solid lubricant
The IROX coating is applied to a conventi
Chain drive - Crankshaft 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-vacu
Chain tensioner
Chain tensioner
Tensioning rail
Sealing sleeve
Chain tensioner with screw thread
Due to the cylinder head manufacturing process, the chain tensioner now has a
sealing sleeve with a
height of 12
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System limits
Certain noises can be detected and may lead
to problems. Keep the doors, windows, and
glass sunroof closed.
Noises from the front passenger or the rear
seat bench can impair the system. Avoid
making other noise in the vehicle while
speaking.
Major language dialects can cause problems
with
Technical data
The following table provides an overview of the technical data of the G20
PHEV 330e compared with
the G20 330i and the F30 PHEV 330e.
* Values may increased, depending on the equipment.
Equipment
The G20 PHEV and G20 differ not only in the technical data but also in the
range of optional
eq
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