Tools — 3D-printable Mercedes-Benz parts

Small service adapter for more easily loosening and tightening the rear-lamp retaining fastener during bulb replacement. The creator specifies PETG plus an M5 heat-set insert, an M5×6 socket-head screw, and a DIN 9021 5.3×15 washer, and source photos show the assembled tool on the fastener. Use it only as a hand tool; do not overtighten the lamp fastener, and inspect the printed body and insert before each use.

Service adapter for manually operating the sunroof emergency drive, with the vehicle-side internal profile and an external profile for a 13 mm socket. Confirm the drive version and engagement depth before use, choose tough material, turn only with controlled hand force, and stop if the roof binds; this adapter is not a substitute for correcting the underlying drive or cable fault.

Workshop adapter that seals the airflow-meter opening to connect a smoke machine during intake-system leak diagnosis. The creator shows it fitted on a 107-series engine. Use only on a stationary, cool engine with low-pressure diagnostic smoke, protect the airflow meter and hoses from excess pressure, never run or drive the car with the adapter installed, and remove it after testing.