BMW 3: Engine Mechanical
BMW 3 Series G20 (2018-2026) 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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Through-loading system
Concept
The cargo area can be enlarged by folding down
the rear seat backrest.
General information
The rear seat backrest is divided at a ratio of 40-20-40. The side rear seat backrests and the
center section can be folded down separately.
The rear seat backrests can be folded down from
the cargo a
Split screen
Concept
Additional information for the navigation can be
displayed in the right part of the split screen.
Switching on/off
1. Press the button on the
Controller.
2. Move the Controller to the right.
3. "Split screen".
4. "Split screen"
Selecting the display
1. Press the button on the
Controller
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