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Home >> BMW >> 2021 >> M760i xDrive >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System -- Repair (1 Of 3) (G12) >> 13 31 Electric Fuel Pump With Drive And Line >> 13 31 035 Removing and installing/replacing fuel supply line (745e xDrive PHEV 2020-2022) >> Removing fuel delivery line

Removing fuel delivery line

WARNING: High-voltage system. 
The high-voltage system operates on the basis of hazardous, electrical voltage and high currents. Mortal hazard through electric shock! 

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: Damage to the ignition coil. 
The silicone hose of the ignition coil must not be contaminated by fuel as this can lead to failure of the ignition coil. 
  • When working on the fuel system, cover the ignition coils with suitable materials and remove where required.
  • Do not oil or grease the silicone tube of the spark plug socket. Do not use any protection or maintenance products (e.g. silicone spray, rubber care products, rust remover, etc.).
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 
Reset special tool in early to avoid bending pressure lines.
G12702130Courtesy of BMW OF NORTH AMERICA, INC.