Engine 281 timing chain slide rail removal and installation procedure for Smart 453 chassis with numbered callouts and torque specifications.

Timing chain assembly diagram showing slide rail, tensioner, and chain components on 453 engine.

View full-size image ↗

See all Powertrain figures for the Fortwo / Forfour (453), 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.