MERCEDES-BENZ

LI54.71-P-078112

2025-12-11 · NHTSA 11026593

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

Complaint The concern is characterized by BOTH of the following. 1. "Active Distance Assist currently unavailable" and "Active Brake Assist functions currently limited" are shown on the instrument cluster during startup or while driving AND 2. Stored DTC in quick test U0416FE - "Implausible data were received from control unit Traction system" in A108/1 (Distronic). Cause Missing wire between Drive Unit (N145) and Supercap (C8). Remedy Please reference the following attachments prior to starting work to familiarize and verify the locations of the components: • Drive Unit (N145) - See attachment "Location of Drive Unit in the vehicle". • Supercap (C8) - See attachment "Location of Supercap C8 in the vehicle". Professionally create a new connection by: • Using a red/white cable with cross-section 0.35 mm2 and overall length of approximately 2m. • Connect Drive Unit (N145) plug A pin 18 to the 3-pin plug of the Supercap (C8) terminal 15 pin 2. Reference the new wire routing location as shown by the red line in "Picture 1 - Connection from Supercap to Drive Unit". • The new wire should be added to the existing wiring harness as shown by the red line "Picture 1 - Connection from Supercap to Drive Unit". • Z-Splice is the preferred method using A 000 982 91 10 for the Supercap (C8) connection. NOTE: All WIS instructions must be followed for wiring modifications. Damage code: 0 - 51422 - ** - 7 (for ** please state the following: "missing connection ex factory"). If the vehicle has had the modification completed and returns with an exact matching "complaint", please open a TIPS case.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.