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Home >> BMW >> 2025 >> 230i >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Camshafts -- Repair (G42) >> 11 31 Camshafts >> 11 31 028 Removing and installing/replacing exhaust camshaft (230i) >> Remove exhaust camshaft

Remove exhaust camshaft

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 

NOTE: RISK OF DAMAGE 
Contaminant or foreign body. 
Contamination can result in malfunctions, loss of function or leaks. 
  • Adhere to the utmost cleanliness.
  • Protect components from contamination e.g. by covering.
  • Close off line connections with seal plugs.
G15904902Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: The exhaust camshaft bearing caps are legibly labeled from the intake side and marked with A1, A2  and A. 
NOTE: Exhaust camshaft bearing cap A  is a thrust bearing.
NOTE: Bearing cap 1  is the high pressure pump bracket.
G15904903Courtesy of BMW OF NORTH AMERICA, INC.
G15904905Courtesy of BMW OF NORTH AMERICA, INC.
G15904906Courtesy of BMW OF NORTH AMERICA, INC.