Engine identification

WARNING: This page is about a different car, the 2013 BMW M3, 2012 BMW M3, and 2011 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

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. 5-8.

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

Fig 13: Identifying Engine Code Letters And Numbers

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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)

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Assemble engine.