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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Changing/canceling the
recognition function
If another vehicle key or another digital key is to
be assigned to a driver profile, the current assignment
must be canceled first.
Via iDrive:
1. "CAR".
2. "Driver profiles".
3. Move the Controller to the right.
As an alternative for Steps 1 to 3, the profile
image can be tapped in the top stat
Overview
Button in the vehicle
Park assistance button
Ultrasound sensors
Ultrasound sensors of the PDC,
for instance in the bumpers.
Functional requirements
Ensure full functionality:
Do not cover sensors, for instance with stickers,
bicycle racks.
Keep the sensors clean and unobstructed.
Switching on/
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