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Home >> BMW >> 2017 >> 530i >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine - Cylinder Head - Repair (G30) (1 Of 4) >> 11 12 Cylinder Head With Lid >> 11 12 101 Replace cylinder head gasket (540i xDrive, 2017-2020) >> Removing the cylinder head gasket

Removing the cylinder head gasket

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: 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: RISK OF DAMAGE 
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS). 
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults. 
  • Detach battery terminal from battery pole by carefully shifting to and fro. Do not pry off using a tool.
NOTE: TECHNICAL INFORMATION 
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
NOTE: TECHNICAL INFORMATION 
After replacing the motor or cylinder head: Reprogram or encode the digital motor electronics (DME) if necessary.
Read out the vehicle I-level and proceed accordingly.
Be absolutely certain to pay attention to PuMA measure 62634754.
For further information, the applicable BMW parts catalogue.

Preliminary work 

G12728236Courtesy of BMW OF NORTH AMERICA, INC.