LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2022 >> M4 Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System -- Repair M4 (G82 & G83) >> 13 31 Fuel Pressure Check, Fuel Line >> 13 31 035 Removing and installing/replacing fuel supply line (M4 2021-2023) >> Removing fuel delivery line

Removing fuel delivery line

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: RISK OF DAMAGE 
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.
G15297261Courtesy of BMW OF NORTH AMERICA, INC.