Recall 24V520 affects 7 2023 Mercedes-Benz Glc 300 SUVs for loose dashboard bolts and heater wiring. Repair is free at any franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 7 2023 Glc 300 vehicles because dashboard area bolts were not tightened enough and 12-Volt auxiliary heater connections are loose. The defects can interfere with air bag deployment in a crash, separate parts, or overheat wiring, increasing injury and fire risks; Mercedes-Benz dealers will inspect and repair the vehicle free of charge.
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What's wrong?
On the 2023 Mercedes-Benz Glc 300, hexagon nuts and related bolts hold parts of the dashboard in place. That area includes the passenger air bag mounting points and the 12-volt auxiliary heater connections. Those fasteners need the correct torque so the dashboard, air bag hardware, and heater wiring stay fixed under normal driving and crash forces.
On the recalled vehicles, a production rework step was done incorrectly. Some dashboard-area bolt connections were not tightened to the required torque. A loose passenger air bag fastener can affect how the air bag deploys in a crash, and loose dashboard parts can separate. Loose auxiliary heater connections can also let wiring overheat.
The warning sign is rattling noise from the dashboard area, especially near the glove compartment or passenger side. If you hear that kind of noise, treat it as a reason to have the vehicle checked under the recall.
Who's affected?
| 2023 Mercedes-Benz Glc 300 | body or structural component |
|---|---|
| Units affected | 7 |
| Field incidents | NHTSA has logged no field incidents to date. |
Not every 2023 Mercedes-Benz Glc 300 is on the list. Check your VIN to confirm whether your specific SUV is included.
What's the safety risk?
Improper air bag deployment raises the chance of injury in a crash, and overheated wiring raises fire risk. Rattling noises from the dashboard area are a warning sign to schedule service soon and avoid ignoring the issue. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2023 Mercedes-Benz Glc 300 is included in this recall.
- Contact your nearest franchised Mercedes-Benz dealer to schedule the free inspection and bolt-tightening repair for the dashboard-area bolts and 12-Volt auxiliary heater connections.
- Bring the recall notice if Mercedes-Benz mailed one. If not, reference recall number 24V520 when you call.
- Call Mercedes-Benz customer service at 1-877-496-3691 with questions about scheduling or dealer instructions.
What happens at the repair
At the dealer, a Mercedes-Benz technician inspects the dashboard area bolts covered by this recall and tightens any loose bolts. The recall repair is free now, including parts and labor. Out-of-pocket repairs already paid are handled through the new vehicle warranty, not through a separate reimbursement program, because the involved vehicles remain covered under warranty. Ask the service desk how that warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| July 8, 2024 | NHTSA published the recall |
|---|---|
| July 15, 2024 | Dealer notification began |
| August 23, 2024 | Owner notification mailed |
| August 23, 2024 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 24V520?
Recall 24V520 covers 7 2023 Mercedes-Benz Glc 300 vehicles with dashboard-area bolts and auxiliary heater electrical connections that need inspection. Loose bolts can affect air bag deployment or allow parts to separate in a crash, and loose heater wiring can overheat. Mercedes-Benz dealers will inspect and tighten the parts for free.
What should I do if my 2023 Mercedes-Benz Glc 300 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 24V520. If it is, contact a franchised Mercedes-Benz dealer to schedule the inspection and tightening work. Reference recall number 24V520 when you call. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Mercedes-Benz says dealers will inspect and tighten the affected dashboard-area bolts and electrical connections free of charge. Use any franchised Mercedes-Benz dealer for the recall work.
What is the safety risk?
The safety risk is injury in a crash or fire. If the dashboard-area bolts are not tight, the air bag deployment or interior parts can behave improperly during a crash. If the auxiliary heater connections are loose, wiring can overheat and raise fire risk.
When were owners notified about recall 24V520?
Mercedes-Benz mailed owner notification letters on August 23, 2024. If you bought the vehicle used or never received a letter, the VIN still decides whether the free recall repair applies. Call Mercedes-Benz customer service at 1-877-496-3691 or a franchised dealer with recall number 24V520.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V520000 |
|---|---|
| Mercedes-Benz customer service | 1-877-496-3691 |
| NHTSA recall # | 24V520 |
| NHTSA recall # (full) | 24V520000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Owner Notice (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →