Shift mechanism and 5th gear selector drum positioning with deflection measurements for smart fortwo 451 automated manual transmission.

Shift mechanism diagram showing selector drums and sliding block deflection with grid reference guide.

View full-size image ↗

See all Powertrain figures for the Fortwo (451), 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.