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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Overview
Buttons in the vehicle
Climate control functions
Temperature.
Recirculated-air mode.
Maximum cooling.
AUTO program.
Air flow, manual.
Switching off.
Air distribution, manual.
Defrost and defog the
windshield.
Rear window defroster.
Seat heating
Climate control operation.
Opening t
Displays and control
elements
In the vicinity of the steering
wheel
Light switch element
Turn signal indicator, high beams
Instrument cluster
Wipers
Indicator/warning lights
Instrument cluster
The indicator/warning lights can light up in a variety
of combinations and colors.
Several of the lights are checked for proper f
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