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Home >> BMW >> 2019 >> X3 M40i >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System -- Repair (1 Of 2) (G01) >> 13 51 Injection Pump, Regulating Parts, Mixture Control >> 13 51 017 Removing and installing high pressure pump (X3 M40i, 2020-2022) >> Remove high pressure pump

Remove high pressure pump

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.
WARNING: Working on fuel system 
Risk of fire! 
  • 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.

Preliminary work 

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 
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.
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.
NOTE: TECHNICAL INFORMATION. 
Collect and dispose of emerging fluids. Observe country-specific waste disposal regulations.
NOTE: TECHNICAL INFORMATION. 
The high pressure pump is preloaded by the piston spring and must be removed by alternately unscrewing the screws without tilting.
Before installing the high pressure pump, the cam of the high pressure pump drive must be turned to bottom dead center.
If necessary, turn the engine in the direction of engine rotation on the central bolt of the crankshaft, otherwise there is a risk of piston breakage of the high pressure pump.