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Home >> BMW >> 2021 >> 330i >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System -- Repair (G20) (1 Of 2) >> 13 53 Injector Nozzles And Lines >> 13 53 180 Replace pressure line (between high pressure pump and pressure accumulator) (M340i and M340i xDrive) >> Remove the high pressure line between the high pressure pump and the rail

Remove the high pressure line between the high pressure pump and the rail

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.

Preliminary work 

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.