Mercedes-Benz is continuously 3D printing replacement parts for its class vehicles

German global automobile marque, Mercedes-Benz is continuously producing replacement parts by using additive manufacturing, expanding its portfolio of genuine spare parts for its classic vehicles.

From the inside mirror base for a 300 SL Coupé (W 198 model series), to the spark plug holder from the tool kit of this iconic sports car, and sliding sunroof rollers fitted to the W 110, W 111, W 112 and W 123 model series, Mercedes-Benz has supplied new parts made by 3D printing. These are important replacement parts, which are available in genuine quality. The 3D printing process is particularly well-suited to smaller quantities and if the genuine tools are no longer available, for example. This allows gaps in the replacement part supply of classic vehicles to be closed.

The printed inside mirror base of the 300 SL Coupé (198 model series, replacement part number A40 198 811 00 25) is now available from the service partner via the Mercedes-Benz Classic Center. Like the original, it is made from an aluminium alloy and subsequently receives high-quality surface chrome-plating. As compared to the original, the new production includes a functional change: the base is 107.5 millimetres in comparison to the original measuring 42.5 millimetres. As a result, the inside mirror sits a little higher and, offers an optimised view to the rear, in terms of road safety.

As part of the standard tool kit of the 300 SL Coupé and Roadster, the spark plug holder (replacement part number A198 580 00 65) is ideal for several spark plugs with a spanner gap of 21 millimetres. It can now be obtained from the service partner via the Mercedes-Benz Classic Center. Particularly on a hot crankcase, it serves to position the spark plug before it is tightened with a spark plug wrench and the right torque. Made from robust thermoplastic polyamide 12 (PA12), the spark plug holder includes a modification that the 3D print makes possible: instead of using a female connector, the spark plug is now securely held in place by a magnet. This means the holder can now be universally used for all spark plug types with and without SAE terminal nuts.

The sliding sunroof rollers for the W 110, W 111, W 112 and W 123 model series (replacement part number A110 782 00 30) are an example of a component part with a concealed attachment. It ensures flawless function: the rollers are on the left and right of the sliding sunroof and are guided by metal rails. With the new production from the 3D printer, the sliding sunroof of the classic now slides like it did on the very first day. Made from robust polyamide 12 (PA12), the sliding sunroof is available now from every service partner via the central warehouse in Germersheim.

The intensive cooperation between Mercedes-Benz Classic and Group Research in 3D printing allows for continuous expansion of the corresponding replacement part range. The technically feasible spectrum extends from engine components to plastic seals and small rubber parts.