Mechanical — 3D-printable Mercedes-Benz parts

Two-piece replacement housing for the starter cable connector on a 2006 SLK 350. The creator modeled it after the original housing crumbled, printed it successfully in ABS, and warns that its position under the exhaust manifold exposes it to substantial heat. Use both housing halves, print only in a suitable high-temperature electrical-insulating material, inspect the cable and terminal for heat or corrosion damage before installation, maintain factory routing and insulation clearances, and discontinue use immediately if the print softens, cracks, or allows terminal movement. Fitment is source-backed only for the stated 2006 SLK 350 within R171.

Replacement latch clip for the engine-compartment electrical fuse box, identified by the creator as the exact serviced child. Source photographs compare it with the original and show it retaining the lid. Print in engine-bay-temperature-resistant PETG, ABS or nylon, verify the box and latch version, and confirm the lid seals and remains secured without pinching wiring.

Replacement wing nut used on several battery and storage-compartment covers. Source imagery shows the installed fastener location and the loose printed geometry. Match the original thread and cover version, print in tough cabin-heat-resistant material, do not force a mismatched thread, and tighten only enough to retain the non-structural cover without cracking it.

Replacement clip used in pairs to secure the lower engine wiring harness to the engine block; the creator notes that the same size also appears elsewhere. Exact routing varies with engine and model year, so compare the original clip and mounting point rather than inferring other positions. Use engine-bay heat-, oil- and vibration-resistant insulating material, avoid sharp wire contact and confirm the harness cannot reach hot or moving parts.

Replacement lid modelled for the fuse box on a 230E. Other engines are explicitly untested, so fitment is restricted to the demonstrated configuration. Reuse the original gasket and fuse-card insert as instructed, print in engine-bay heat-resistant material, verify full sealing and latch engagement, and never install a warped lid that could admit water or contact fuses.

Replacement 4 mm plastic locking pin for electrical sensor connectors and the Stromberg 175 carburettor valve connector. The creator demonstrates the printed pin with the original sensor fittings. Match the connector body and pin diameter exactly, use engine-bay heat- and fuel-resistant material, route wiring without strain and confirm the connector cannot loosen or short before operating the engine.