Engine identification

Engine number at the marked surface.

Replacement drives are already assigned a number containing the identification and engine number at the factory.

The old drive number must be imprinted for replacement crankcases.

Magnesium crank cases feature a label, the engine number does not need to be embossed.

M47/M47TU/M47T2

Fig 1: Identifying Engine Identification Mark - M47/M47TU/M47T2

Courtesy of BMW OF NORTH AMERICA, INC.

M57/M57TU/M57T2

Fig 2: Identifying Engine Identification Mark - M57/M57TU/M57T2

Courtesy of BMW OF NORTH AMERICA, INC.

M67/M67TU

Fig 3: Identifying Engine Identification Mark - M67/M67TU

Courtesy of BMW OF NORTH AMERICA, INC.

N47/N47S/N47C/N47T/N57/N57S/N57T

Fig 4: Identifying Engine Identification Mark - N47/N47S/N47C/N47T/N57/N57S/N57T

Courtesy of BMW OF NORTH AMERICA, INC.

M52/M52TU

Fig 5: Identifying Engine Identification Mark - M52/M52TU

Courtesy of BMW OF NORTH AMERICA, INC.

M54

Fig 6: Identifying Engine Identification Mark - M54

Courtesy of BMW OF NORTH AMERICA, INC.

M56

Fig 7: Identifying Engine Identification Mark - M56

Courtesy of BMW OF NORTH AMERICA, INC.

N20/N26

Fig 8: Identifying Engine Identification Mark - N20/N26

Courtesy of BMW OF NORTH AMERICA, INC.

N40/N45/N45T/N43

Fig 9: Identifying Engine Identification Mark - N40/N45/N45T/N43

Courtesy of BMW OF NORTH AMERICA, INC.

N42/N46/N46T

Fig 10: Identifying Engine Identification Mark - N42/N46/N46T

Courtesy of BMW OF NORTH AMERICA, INC.

N51/N52/N52K/N52T/N53/N54/N55

Fig 11: Identifying Engine Identification Mark - N51/N52/N52K/N52T/N53/N54/N55

Courtesy of BMW OF NORTH AMERICA, INC.

N62/N62TU

Fig 12: Identifying Engine Identification Mark - N62/N62TU

Courtesy of BMW OF NORTH AMERICA, INC.

Position (1) engine number.

Position (2) engine code letters.

N63, N63O1. N63O2

S63

N74, N74O1,

S63T0 to engine number 2001 0052 on right side cyl. 1-4.

S63T0 from engine number 2001 0053 on left side cyl. 5-8.

E72 Vehicles must be imprinted on the left side cyl. 5-8.

Fig 13: Identifying Engine Number And Engine Code Letters

Courtesy of BMW OF NORTH AMERICA, INC.

N73

Fig 14: Identifying Engine Identification Mark - N73

Courtesy of BMW OF NORTH AMERICA, INC.

S54

Fig 15: Identifying Engine Identification Mark - S54

Courtesy of BMW OF NORTH AMERICA, INC.

S85/S65

Fig 16: Identifying Engine Identification Mark - S85/S65

Courtesy of BMW OF NORTH AMERICA, INC.

S55

Fig 17: Identifying Engine Identification Mark - S55

Courtesy of BMW OF NORTH AMERICA, INC.

W10/W11

Fig 18: Identifying Engine Identification Mark - W10/W11

Courtesy of BMW OF NORTH AMERICA, INC.

W16

Fig 19: Identifying Engine Identification Mark - W16

Courtesy of BMW OF NORTH AMERICA, INC.

W17

Fig 20: Identifying Engine Identification Mark - W17

Courtesy of BMW OF NORTH AMERICA, INC.

W20

Fig 21: Identifying Engine Identification Mark - W20

Courtesy of BMW OF NORTH AMERICA, INC.

N12/N13/N14/N16/N18

Fig 22: Identifying Engine Identification Mark - N12/N13/N14/N16/N18

Courtesy of BMW OF NORTH AMERICA, INC.

B37/B38A/B47/B48A

Fig 23: Identifying Engine Identification Mark - B37/B38A/B47/B48A

Courtesy of BMW OF NORTH AMERICA, INC.

B38B/B48B

Fig 24: Identifying Engine Identification Mark - B38B/B48B

Courtesy of BMW OF NORTH AMERICA, INC.

B57

Fig 25: Identifying Engine Identification Mark - B57

Courtesy of BMW OF NORTH AMERICA, INC.

B58

Fig 26: Identifying Engine Identification Mark - B58

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.