Brake booster vacuum line removal and installation procedure for smart 454 with engine 639.9, left-hand drive.

Service manual page showing brake booster vacuum line removal steps with three engine bay photographs and numbered callouts.

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See all Chassis 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.