11 21 Crankshaft and Bearings (Ground Size of Main Bearing Journals) N51 / B30
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.
TECHNICAL DATA - CRANKSHAFT AND BEARINGS N1 B25
| Ground sizes of main bearing journals | main bearing journal | |
| Original (designation S1) | mm | 55.998 ... 55.993 |
| Original (designation S2) | mm | 55.992 ... 55.987 |
| Original (designation S3) | mm | 55.986 ... 55.981 |
| Crankshaft bearing clearance, radial | mm | 0.020 ... 0.046 |
| Max. permitted runout at centre crankshaft journal | mm | 0.150 |
TECHNICAL DATA - CRANKSHAFT AND BEARINGS N51 B25
| Ground sizes of main bearing journals | main bearing journal | |
| Original (designation S1) | mm | 64.998 ... 64.993 |
| Original (designation S2) | mm | 64.992 ... 64.987 |
| Original (designation S3) | mm | 64.986 ... 64.981 |
| Crankshaft bearing clearance, radial | mm | 0.020 ... 0.046 |
| Max. permitted runout at centre crankshaft journal | mm | 0.150 |