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Home >> BMW >> 2021 >> M3 Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System -- Repair M3 (G80) >> 13 51 Fuel Injection Pump >> 13 51 059 Removing and installing both high pressure pumps (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) >> Installing the two high pressure pumps

Installing the two high pressure pumps

Installing the high pressure pump for cylinders 4 to 6 

NOTE: RISK OF DAMAGE 
Damage to the engine 
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged 
  • Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear
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

The depth gauge (1) is in the lowest position

G09846718Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: RISK OF DAMAGE 
Damage to the engine 
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged 
  • Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear
G14927575Courtesy of BMW OF NORTH AMERICA, INC.

Parts:  Seal

G14192528Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents
G14192531Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: RISK OF DAMAGE 
Damage to the surface 
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage 
  • Do not use any metal-cutting tools
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents
G14192532Courtesy of BMW OF NORTH AMERICA, INC.

Compliance with this specification is imperative to make sure that the piston will not break due to twisting

G14902527Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

High pressure pump to high pressure pump flange 
M6x25
Replace screws
Joining torque  12 Nm
Tightening torque  90°

Installing the high pressure pump for cylinders 1 to 3 

NOTE: RISK OF DAMAGE 
Damage to the engine 
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged 
  • Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear
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

The depth gauge (1) is in the lowest position

G09846718Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: RISK OF DAMAGE 
Damage to the engine 
If the engine is manually rotated in the wrong direction of rotation, the engine can be damaged 
  • Only rotate the engine manually in the correct direction of rotation: a) clockwise when looking at the damper, or b) counterclockwise when looking at the chain drive. b) applies only if the timing chain is installed in the rear
G14927575Courtesy of BMW OF NORTH AMERICA, INC.
G14192527Courtesy of BMW OF NORTH AMERICA, INC.

Parts:  Seal

G14192528Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents
G14192531Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: RISK OF DAMAGE 
Damage to the surface 
The use of metal-cutting tools (e.g., emery cloths) for cleaning surfaces can damage them and lead to leaks and/or engine damage 
  • Do not use any metal-cutting tools
NOTE: TECHNICAL INFORMATION 
The sealing surfaces must be free of oil, grease and cleaning agents
G14192532Courtesy of BMW OF NORTH AMERICA, INC.

Compliance with this specification is imperative to make sure that the piston will not break due to twisting

G14927573Courtesy of BMW OF NORTH AMERICA, INC.
TIGHTENING TORQUE SPECIFICATIONS

High pressure pump to high pressure pump flange 
M6x25
Replace screws
Joining torque  12 Nm
Tightening torque  90°

Follow-up work