Mercedes-Benz has quite a complicated internal code line, with a puzzling combination of letters and numbers symbolizing each vehicle. It began as a simple letter and speech combination, but the introduction of newer models created a new list of internal code alignments. The letter and speech combination corresponded to the engine's offset, but that is not always the case today. This is a quick guide to what all letters and numbers mean.
This is the smallest car in the Mercedes brand lineup that is appropriate with the name of the alphabet. The code name is W176, with "W" as a four / five door passenger car.
The B-class is the second smallest car, so it is quite self-evident how it got this label.
The labeling of the C-class becomes more complicated. It is internally named W205 and is also called S205, with S which stands for station wagon. In upcoming models, coupe will also receive an internal code for C205 and A204, with "C" as coupe and "A" as convertible.
The e-class consists of more than one model, with an internal name of W212. However, the station car gets S212. The E-class Coupe is not called C212 as one would assume, but as C207. This is because it shares more in common with the previous generation C-class 204. "E" in the E-class used to mean "injection" in German.
The S-class means "special class" in German because this big sedan was and still is the top of the line photo in the Mercedes range. The code is called W222, while the S-class Coupe is called C217. Future convertibles will be called A217.
CLA is marketed as a four door coupe with a C117 code name, very confusing by many Mercedes Benz fans.
This is also a four door coupe, with the internal code name of C218. The crossover version is called X218.
SLK is the smallest roadster in the Mercedes line, with code R172. "R" stands for roadster.
SL roadster is actually much like SLK and is preferably called R231.
With the addition of many Mercedes Benz vehicles in the future, the internal code name will be complicated really fast. The code names can be difficult to memorize first, but when you get to hang on to it and understand why the codes are given to the vehicles, they become quite understandable.