BMW 3 Owners & Service Manuals

BMW 3: Connecting rod - Crankshaft drive

Crankshaft drive
Connecting rod

  1. Piston
  2. Area transferring the force
  3. Wrist pin
  4. Connecting rod bearing with shaped bore hole
  5. Connecting rod
  6. Connecting rod bearing (B46TU only)
  7. Small connecting rod eye (trapezoidal shape)
  8. Large connecting rod eye (cracked)
  9. Connecting rod bolts of the connecting rod bearing cap
  10. Connecting rod bearing shell of the connecting rod bearing cap
  11. 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.


     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

     Chain drive - Crankshaft drive

    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

    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


     Solenoid valve injector

    Measures at the solenoid valve injector The following graphic illustrates the differences between the HDVE5 and HDEV6 fuel injectors: Solenoid valve injectors Solenoid valve injector HDEV5 Solenoid valve injector HDEV5 EVO Solenoid valve injector HDEV6 (B46TU engine) Injector seat Injectio

     Creating a driver profile

    A driver profile is created or 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 status bar. 4. "Add driver profile". ConnectedDrive countries: An existing ConnectedDrive account must b

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