Mercedes-Benz W123 Series 3D-printable parts

Multi-part replacement for the centre-console ashtray: a storage body plus shallow, flush, blank and outlet-ready plate options. The creator shows the body installed and notes unused space beneath the extended plate for a separately wired 12-volt or USB outlet. Use heat-resistant material, retain safe selector clearance, secure the assembly, and fuse and insulate any electrical addition independently; the files contain no electrical hardware.

Two-piece replacement case for the handle portion of the original ignition key blade. The creator provides separate upper and lower shells and shows the physical case around a 123-series key. This does not reproduce or alter the metal key blade or lock coding. Verify the blade head dimensions, bond the shells securely with no adhesive on the blade cuts, and confirm the case cannot separate or obstruct full key removal.

Replacement heater-control button intended for a two-colour surface indicator. The creator used PLA, 0.08 mm layers, ironing and 100% infill; for automotive cabin use, choose a heat-resistant compatible material and preserve the visible indicator. Compare the shaft interface and confirm the control operates through its full range without binding.

Flexible downward-facing bell for the fuel-tank vent line, recreated after rodent damage on a 300CD/T/D application. The creator printed it in flexible filament at 100% infill and describes a friction fit on the black 90-degree elbow. Use fuel-vapour-compatible material, preserve an open vent path, secure the bell against loss and stop if tank venting, odour or leakage changes.

Panel and two separate mounting clips for the upper centre console, demonstrated with 300D switch hardware. The creator recommends screws and nuts rather than pop rivets and notes that the face can receive wood veneer. Compare the switch count and opening layout, use cabin-heat-resistant material, keep fasteners and adhesive clear of wiring, and confirm all switches operate freely.

Flexible grommet sealing the windscreen-washer pump to the reservoir on a 300D. The creator specifies flexible filament and 100% infill. Clean the reservoir opening, compare both pump and tank diameters, use washer-fluid-compatible TPU and confirm a leak-free seal before closing the bonnet.

Modified rear-deck grille for Rockford Fosgate R1525 5.25-inch speakers, derived from the creator's credited earlier grille design. The source specifies ABS or another high-temperature material to avoid cabin-heat deformation. Secure the speaker independently, verify grille retention and keep the installation clear of rear-window visibility and parcel-shelf hardware.

Replacement headlamp mounting nut shown beside the original physical component. Compare the thread, diameter and lamp position before use, print in heat- and weather-resistant material, tighten only to the original retention load and verify headlamp aim and stability after installation.

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.

Two-cup holder shaped for the centre console and demonstrated by the creator for saloon and estate interiors. The creator printed at 50% infill and fixed the holder with hook-and-loop tape. Use heat-resistant material, secure it without drilling or trapping wiring, keep containers clear of the selector and controls, and verify that it cannot become a loose object under braking.

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.

Replacement external button cap carrying the hazard-warning triangle for the dashboard switch identified by the creator as 1238200205. The printable reproduces only the cap, not the complete electrical switch, so that assembly number is not assigned. Use heat-resistant material, retain the original switch mechanism and confirm reliable hazard-light activation, cancellation and indicator visibility before driving.

Replacement plastic locating pin for the wooden switch panel in the centre console, demonstrated on 240D and 300D cars. The creator provides a central hole for an optional cut-down steel nail bonded with adhesive to reinforce the shaft. Keep metal reinforcement fully encapsulated and clear of wiring, use heat-resistant material, and confirm the panel is retained without stressing the veneer or switches.

Replacement door-seal clip measured directly from an original coupé component. The creator tested prototypes in PLA and final parts in ASA/PETG, recommends nylon for durability and specifies horizontal print orientation for strength. Fitment is limited to the coupé body. Compare the original clip, deburr all edges and confirm the seal seats continuously without preventing safe door latching. The source references A0009871015, but no exact independent EPC child-component record was recovered, so no OEM number is assigned.

Replacement frame for a broken rear number-plate lamp, also usable as a cutting guide for a new seal. The creator states fitment across 123-series variants. Use UV- and heat-resistant material, preserve the original lens, bulb holder and wiring, install an appropriate gasket and confirm lamp visibility, weather sealing and wire clearance.

Flexible replacement cap for the windscreen-washer reservoir, printed by the creator in TPU without supports. Compare the filler-neck diameter, print in fluid-tolerant flexible material, keep fragments out of the reservoir and confirm the cap seals without obstructing the pump pickup or hoses.

Replacement substrate for the climate-control wood trim, demonstrated on a 1982 300D sedan. The creator warns that control-panel layouts vary between models and instructs users to compare the two rear locating pins and panel shape before printing; a separate wood veneer is required. Restrict use to the matching control layout, keep adhesive away from controls and wiring, and confirm every control moves freely after installation.

Replacement clip joining seat upholstery to the internal metal rod. The creator explicitly states use on W123, W140 and R129 seats and recommends ABS rather than PLA. Compare the original clip and seat construction, use a tough heat-resistant material, round and clean every contact edge and confirm the upholstery is retained without cutting the fabric or affecting seat adjustment. Source-stated numbers 1239884078 and 1409883778 were not assigned because an independent exact EPC child-component mapping was not recoverable in this run.

Replacement rear-deck speaker grille for a Visaton FR 13 speaker. The creator physically tested the FR version; separate FX/PX variants were explicitly untested and are not included. Use cabin-heat-resistant material, secure the speaker independently with appropriate hardware and confirm the grille cannot become loose or interfere with rear visibility.

Protective body plug test-fitted in a 123-series jacking point. The creator printed it in ABS with three flex slots and advises rust protection inside the jacking tube before installation. This is a dust and appearance plug only: remove it before using the factory jack, never treat it as a lifting pad, and inspect the jacking point for corrosion before lifting. The source mentions reference number 2018990008, but no exact EPC child-component record was independently recovered, so no OEM number is assigned.

Replacement plug-style retaining clip for the windscreen-wiper vent grille. The creator checked the dimensions on a 123-series car and notes that minor sanding may be needed because the design substitutes a plug action for the original push-through clip. Use weather-resistant material, fit without cracking the grille and confirm every clip remains secure through wiper operation and water flow.

Protective cap for the windscreen-wiper shaft, explicitly shown on 240D, 300D and 300TD applications. Use UV- and weather-resistant material, verify clearance through the complete wiper sweep and ensure the cap cannot loosen onto the windscreen or cowl.

Replacement tailgate clip for the retractable cargo cover on 300 TD/TE estate cars. Fitment is limited to the estate body included in this generation. Compare the mating profile, use cabin-heat-resistant material and confirm the cargo cover latches and releases without loading the tailgate trim. Only the creator's loose-part source photograph is included; the unrelated credited vehicle photograph is retained as evidence but not uploaded.

Flexible protective sleeve for wiring passing into a front door. The creator specifies 123-series driver or passenger doors, flexible filament, and an upward slicer orientation for the sealing-lip end. Route the wiring without tension, seat both ends fully, confirm the door closes without pinching the sleeve, and inspect periodically for abrasion or water ingress.