2025 MERCEDES-BENZ GLC 350 E 4MATIC — Complaint #2163524
Open-data reference.
NHTSA Complaint about VISIBILITY:SUN/MOON ROOF ASSEMBLY filed January 6, 2026
NHTSA complaint #2163524 (ODI reference 11709102) concerns a 2025 MERCEDES-BENZ GLC 350 E 4MATIC and was filed on January 6, 2026. The owner reports the failure occurred on January 5, 2026. The vehicle had 6,000 miles on the odometer at the time of the incident. The report was geocoded to Texas based on the filer's self-reported location. The affected component is categorized as visibility:sun/moon roof assembly, 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 GLC 350 E 4MATIC cohort independently describe similar visibility:sun/moon roof assembly 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 2025 MERCEDES-BENZ GLC 350 E 4MATIC shows the complete component-level complaint distribution alongside any active investigations or recalls.
Complaint Description
The contact owns a 2025 Mercedes-Benz GLC350E 4Matic. The contact stated that while driving at 65 MPH, the sunroof made an exploding sound and shattered. The contact stated that the shattered glass fell inside the vehicle, on the contact's head wrap, neck, and body. There was no injury sustained. The contact temporarily pulled over to the side of the road. The vehicle was taken to the dealer, where the contact was informed that debris might have caused the sunroof to shatter; however, the contact stated that the vehicle was being driven on a smooth road surface during the failure, and that the sunroof had shattered due to an internal failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 6,000.
Complaint Details
| NHTSA Complaint ID | 2163524 |
| ODI Number | 11709102 |
| Date Filed | January 6, 2026 |
| Failure Date | January 5, 2026 |
| VIN | W1NKM5GB5SF |
Similar VISIBILITY:SUN/MOON ROOF ASSEMBLY Complaints for 2025 MERCEDES-BENZ GLC 350 E 4MATIC
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.