2018 MERCEDES-BENZ C 300 — Complaint #1827518
Open-data reference.
NHTSA Complaint about COMMUNICATION filed July 21, 2022
NHTSA complaint #1827518 (ODI reference 11475159) concerns a 2018 MERCEDES-BENZ C 300 and was filed on July 21, 2022. The owner reports the failure occurred on December 1, 2021. The report was geocoded to Texas based on the filer's self-reported location. The affected component is categorized as communication, one of NHTSA's standardized taxonomy codes used to group defect patterns across make, model, and year.
The filer flagged the following severity indicators: crash: no, fire: no, injuries: 0, fatalities: 0. No crash, fire, or fatality was associated with this report, which places it in the early-warning stream rather than the priority-review stream. Because a VIN was supplied, this complaint is tied to a specific vehicle and not just a model-year cohort.
Individual complaints are consumer-submitted and unverified by NHTSA engineers — the agency's role at this stage is to collect, index, and make them searchable. What matters for federal action is the pattern: when many owners of the same MERCEDES-BENZ C 300 cohort independently describe similar communication failures, defect investigators have grounds to open a PE and request manufacturer data. Related filings for the same vehicle and component appear below, and the detail page for the full 2018 MERCEDES-BENZ C 300 shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2018 Mercedes-Benz C300. The contact stated that the SOS warning light was illuminated. Upon testing the SOS system, the contact stated that the system failed to operate as needed. The contact then received notification of NHTSA Campaign Number: 22V365000 (Electrical System, Communication). The vehicle was taken to the dealer for service, however, the failure persisted. The vehicle was taken back to the dealer on multiple occasion for multiple repairs related to the failure. Recently, the contact was informed that the Hermes control unit was defective. The manufacturer was notified of the failure and the contact was informed that the repair cost was not covered. The vehicle was not repaired. The failure mileage was unknown.
Complaint Details
| NHTSA Complaint ID | 1827518 |
| ODI Number | 11475159 |
| Date Filed | July 21, 2022 |
| Failure Date | December 1, 2021 |
| VIN | WDDWF4JB4JR |
Similar COMMUNICATION Complaints for 2018 MERCEDES-BENZ C 300
The contact owns a 2018 Mercedes-Benz C300. The contact stated that after starting the vehicle, the S.O.S. Not Active message displayed. The contact was concerned that in the event of an emergency, th
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS N
Source: NHTSA Vehicle Complaints Database. Component taxonomy and severity codes are standardized by NHTSA Office of Defects Investigation.
Read our methodology — how this data is sourced, computed, and verified.