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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Overview
With the G20 PHEV the already familiar Generation 4.0 high-voltage battery
unit with the designation
SP41 is used. The lithium-ion battery has the same basic design as the
Generation 3.0 SP06 high-
voltage battery unit. The same can be found in the G12 PHEV and also in the G30 PHEV.
The
STANDARD
With a sufficient state of charge of the high-voltage battery unit,
all-electric driving of the vehicle with
maximum power of the electric drive is possible for up to 41 miles (66 km). The
maximum speed in this
case is 87 mph (140 km/h).
In the STANDARD variant, all ECO PRO setting
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