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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LATCH child restraint fixing
system
General information
LATCH: Lower Anchors and Tether for Children.
Pay attention to the specifications and the operating
and safety information from the child restraint
system manufacturer when selecting, installing,
and using LATCH child restraint fixing
systems.
Mounts for the lower LATCH
anchors
Overview
Unlocking
Locking
Stationary climate control through Remote
Engine Start
Opening the trunk lid
Press and hold or press three times in quick
succession: panic mode
Press briefly: headlight courtesy delay feature
Unlocking
General information
The behavior of the vehicle when unlocking usin
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