Cylinder head bolt tightening sequence for Smart 451 model engine 132.910, showing eight numbered bolt positions and multi-stage torque procedure.

Diagram of cylinder head with eight bolts numbered 1-8 in tightening sequence pattern, Mercedes-Benz engine.

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See all Powertrain figures for the Fortwo (450), or browse the full figure library. Part numbers and callouts are community-sourced and cross-referenced against the manuals — confirm with your VIN before ordering.