BMW 3: Engine Mechanical
BMW 3 Series G20 (2018-2025) Training manual / B46TU-B48TU Engines / Engine Mechanical
- Engine housing, Crankshaft drive
- Connecting rod - Crankshaft drive
- IROX coating - Crankshaft drive
- Chain drive - Crankshaft drive
- Chain tensioner
- Valve gear
- Belt drive
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Engine housing, Crankshaft drive
Engine housing
Cylinder head
The cylinder head is made of aluminum.
Only slight modifications have been made to the B46TU head compared to the B46.
Cylinder head
Crankshaft drive
Crankshaft
Comparis
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 (trapezoid
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
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Child restraint systems
with tether strap
Safety information
Warning
If the upper retaining strap is incorrectly used
for the child restraint system, the protective effect
can be reduced. There is a risk of injury.
Make sure that the upper retaining strap does
not run over sharp edges and is not twisted as
it passes the upper anchor.
Warn
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
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