BMW 3: 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 (trapezoidal shape)
- Large connecting rod eye (cracked)
- Connecting rod bolts of the connecting rod bearing cap
- Connecting rod bearing shell of the connecting rod bearing cap
- Connecting rod bearing shell of the connecting rod (IROX-coated)
The drop-forged cracked connecting rods with IROX coating are known from the
B38/B46 engines.
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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
Features:
Chain drive at the side of the engine emitting the forces.
Single-part chain drive for driving the camshafts.
Single sleeve-type chain 8 mm.
Electric motor of the combined oil-vacu
Chain tensioner
Tensioning rail
Sealing sleeve
Chain tensioner with screw thread
Due to the cylinder head manufacturing process, the chain tensioner now has a
sealing sleeve with a
height of 12
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General information
The Control Display is equipped with a touchscreen.
You can tap on menu items and widgets. Touch
the screen with your fingers. Do not use any objects.
Opening the main menu
Tap on the symbol.
The main menu is displayed.
Adjusting widgets
The widgets can be adjusted in the main
Concept
The Sport displays especially support a sporty
driving style.
Display on the Control Display
Overview
The following information is displayed:
Boost pressure.
Engine oil temperature.
Acceleration power.
Torque.
Power.
Displays
Via iDrive:
1. "CAR".
2. "Driving information".
3. "Sport