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11 00 Engine In General N54 B30

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE SPECIFICATIONS

Cylinder   6
Bore mm 84
Stroke mm 89.6
Effective displacement cm3 2979
Compression ratio :1 10.2
Max. permissible engine speed RPM 7000
Permissible constant speed RPM 6550
Compression pressure:
Minimum and maximum values depending on position of Valvetronic.
  14...16
Compression pressure:
Maximum deviation of all cylinders to each other.
bar 2