Chassis Code

Model names like C300 or GLE 450 stay the same for years, while the car underneath changes completely between generations. Mercedes-Benz tells generations apart with internal chassis codes, also called model series or body codes. Workshops, parts catalogs and owner forums use them because they are more precise than the model name.

How to read a chassis code

A code has a letter and three digits. The digits identify the model series, for example 205 for the C-Class of 2014-2021 or 213 for the E-Class of 2016-2023. The letter roughly describes the body:

• W - usually a sedan (W205, W213, W222, W223).
• C - a coupe, sometimes also the convertible of the same family (C217, C238, C190 for the AMG GT).
• A - a convertible, S - a wagon, R - a roadster.
• X, V, H - SUVs and some long-wheelbase or electric models (X253 GLC, V167 GLE, V297 EQS).

Sister models share electronics, which is why a product listing often names two codes at once, such as W213 / C238 for the E-Class sedan and coupe.

Why it matters for modules

Control units, software versions and available features change from one chassis to the next, and sometimes with a mid-cycle facelift. A module built for the W205 C-Class will not work on the older W204, even though both are sold as C300. That is why MWMods lists every product by chassis code and model years.

How to find yours

The chassis code is usually part of the vehicle data: on many Mercedes-Benz VINs the 4th to 6th characters contain the series number. If you are unsure, send the full VIN before ordering - it identifies the exact car, including the options it was built with. Most modules then connect through the OBD-II port.