Cylinder inspection procedure with flexible light probe on 454 model engines 122.9, 134.9, 135.9.

Engine bay showing cylinder inspection equipment and flexible inspection light positioned at spark plug bore.

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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.