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: Engine Identification Mark (M47/M47TU/M47T2)

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M57 / M57TU / M57T2

Fig 2: Engine Identification Mark (M57/M57TU/M57T2)

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M67 / M67TU

Fig 3: Engine Identification Mark (M67/M67TU)

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

Fig 4: Engine Identification Mark (N47/N47S/N47C/N47T/N57/N57S/N57T)

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M52 / M52TU

Fig 5: Engine Identification Mark (M52/M52TU)

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M54

Fig 6: Engine Identification Mark (M54)

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M56

Fig 7: Engine Identification Mark (M56)

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N20 / N26

Fig 8: Engine Identification Mark (N20/N26)

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N40 / N45 / N45T / N43

Fig 9: Engine Identification Mark (N40/N45/N45T/N43)

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N42 / N46 / N46T

Fig 10: Engine Identification Mark (N42/N46/N46T)

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

Fig 11: Engine Identification Mark (N51/N52/N52K/N52T/N53/N54/N55)

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N62 / N62TU

Fig 12: Engine Identification Mark (N62/N62TU)

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Position (1) engine number.

Position (2) engine code letters. N63, N63TU.

S63

N74

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

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

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

Fig 13: Engine Code Letters

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N73

Fig 14: Engine Identification Mark (N73)

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S54

Fig 15: Engine Identification Mark (S54)

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S85 / S65

Fig 16: Engine Identification Mark (S85/S65)

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S55

Fig 17: Engine Identification Mark (S55)

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W10 / W11

Fig 18: Engine Identification Mark (W10/W11)

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W16

Fig 19: Engine Identification Mark (W16)

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W17

Fig 20: Engine Identification Mark (W17)

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W20

Fig 21: Engine Identification Mark (W20)

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N12 / N13 / N14 / N16 / N18

Fig 22: Engine Identification Mark (N12/N13/N14/N16/N18)

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B37 / B38 / B47 / B48 / B57 / B58

Fig 23: Engine Identification Mark (B37/B38/B47/B48/B57/B58)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.