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Home >> BMW >> 2025 >> 230i >> Repair and Diagnosis >> External Pages >> Different car >> Section 273 (Variable Valve Lift Control System -- Repair M4 (G82 & G83)) >> 11 37 Variable Valve Lift Control System (VALVETRONIC) >> 11 37 005 Removing and installing/replacing eccentric shaft (M4 AWD models) >> Remove eccentric shaft

Remove eccentric shaft

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WARNING: Working on 12 V electrical system  .
Risk of short circuits! Risk of fire! 
  • Make sure that there is no charger  connected to the jump start terminal in the engine compartment.
  • Detach battery ground lead from battery.
  • For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.
WARNING: Hot surfaces  .
Risk of burning! 
  • Perform all work only on components that have cooled down.
WARNING: Working on fuel system  .
Risk of fire! Danger of explosion! 
  • When working on the fuel system, make sure the workstation has sufficient ventilation, e.g., by means of extraction.
  • Tightly seal off open lines and connections; collect any leakage fuel directly at the point of exit.
  • No fire, sparks, open flames or smoking.
CAUTION: On releasing high pressure line, fuel may emerge at high speed  .
Injury hazard! 
  • Wear suitable personal protective equipment.
  • Before performing any installation work, allow cooling system to cool down to less than 40°C.
  • Note warnings on cylinder head cover.
NOTE: TECHNICAL INFORMATION 
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.

Preliminary work 

G15330647Courtesy of BMW OF NORTH AMERICA, INC.