About Mercedes-Benz codes
The codes on this page are manufacturer-specific codes defined for Mercedes-Benz. The list uses Mercedes’ own module names — the SAM body electronics module, the ESP control unit, the TUNA intake manifold changeover valve and EGS transmission control.
On the Mercedes side, network codes name the bus itself (CAN-C, for example). That saves time in diagnosis because it says directly which data bus lost communication: you start from that bus’s supply and integrity rather than from the module.
The codes in this table are concentrated in these system groups: body and comfort (4), chassis (4), network and can bus (4).
Manufacturer-specific codes are those with 1 (sometimes 2 or 3) as the second digit: they are defined by the manufacturer, not by SAE/ISO. That is why the same code number can indicate two different faults on two different makes, and why a generic code list is of no use for them.
Fault codes for this make
The database holds 18 manufacturer-specific codes for Mercedes-Benz. Each code has its own page with the meaning, possible causes and diagnostic steps:
Read fault codes on your own vehicle
With an ELM327-based BLE OBD2 adapter, CarCoding reads confirmed, pending and permanent fault codes separately, pulls the freeze frame and explains every code in plain language. Clearing codes is done from the app as well. The app is free to download.
Some advanced features require an in-app purchase.
Data source: the CarCoding fault code database. Code definitions follow the SAE J2012 standard; manufacturers may use different wording for their own codes. Everything on this page is generated from the code-specific database records.