Automated manual transmission shift mechanism with selector drums and sliding blocks for 1st/2nd gear engagement (451 model).

Transmission shift mechanism diagram showing selector drums, sliding blocks, and gear position grid patterns.

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.