Recall 21V403 affects 5,680 2020 Mercedes-Benz Glb 250 vehicles for water intrusion that can damage electrical components. Free repair at any franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 5,680 2020 Glb 250 vehicles because water can enter through the wheel well area into the front foot wells and damage electrical components. That damage can blank the instrument cluster, stall the engine while driving, or prevent the vehicle from starting, and Mercedes-Benz dealers will complete the recall repair free of charge.
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What's wrong?
The body seal around the front wheel well area on 2020 Mercedes-Benz Glb 250 vehicles is supposed to keep road water out of the cabin. It protects the front foot wells, where carpeting sits over wiring and electrical components. Those components help power driver information and starting functions, including the instrument cluster, the display that shows speed and warning lights.
On affected vehicles, the body was not sealed to current production specifications during manufacturing or rework. Water can pass through the wheel well area and collect in the front foot wells. Once moisture reaches electrical parts, the instrument cluster can go blank, the engine can stall while driving, or the vehicle can fail to start.
Owners can see signs before the electrical problem appears. Watch for wet carpet in the front foot wells or windows that fog more than normal.
Who's affected?
The listed components point to the body structure and electrical system on the same Glb 250 vehicles.
| 2020 Mercedes-Benz Glb 250 | body or structural component |
|---|---|
| 2020 Mercedes-Benz Glb 250 | electrical system |
| Units affected | 5,680 |
| Field incidents | NHTSA has logged 3 field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific SUV.
What's the safety risk?
A blank instrument cluster display can leave the driver without key driving information, and an engine stall removes propulsion while the vehicle is moving. Either failure increases the risk of a crash. Wet front carpets or fogged windows are signs to take seriously. Schedule the recall repair soon. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2020 Mercedes-Benz Glb 250 is included in this recall.
- Contact a franchised Mercedes-Benz dealer to schedule the free wheel-well sealing and front foot-well inspection that addresses water intrusion into electrical components.
- Bring the owner notice if you have it. If not, reference recall number 21V403 when you call.
- Avoid driving if the instrument cluster goes blank, the engine stalls, or the vehicle will not start; ask the dealer about towing.
- Call Mercedes-Benz customer service at 1-800-367-6372 with questions.
What happens at the repair
At the dealer, a Mercedes-Benz technician seals the vehicle body in the wheel well area, then inspects the front foot wells for water intrusion. If the inspection finds water intrusion, the technician repairs the affected area under the recall. Parts and labor are covered. Out-of-pocket repairs already paid are handled through the new vehicle warranty, not through a separate reimbursement program, because the involved vehicles remained under warranty before the recall notice.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| May 28, 2021 | NHTSA published the recall |
|---|---|
| June 7, 2021 | Dealer notification began |
| July 20, 2021 | Owner notification mailed |
| July 20, 2021 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V403?
Recall 21V403 covers 5,680 2020 Mercedes-Benz Glb 250 vehicles where water can enter through the wheel well area into the front foot wells and damage electrical components. Mercedes-Benz dealers will seal the body, inspect for water intrusion, and repair related damage for free.
What should I do if my 2020 Mercedes-Benz Glb 250 is on this recall?
Check your VIN to confirm your specific SUV is included in recall 21V403. If it is, contact a franchised Mercedes-Benz dealer to schedule the body sealing, foot-well inspection, and any needed electrical repairs. Reference recall number 21V403 when you call.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost, and Mercedes-Benz will perform this recall repair free of charge at any franchised Mercedes-Benz dealer. The remedy includes sealing the wheel well area and inspecting the front foot wells.
What is the safety risk?
The safety risk is a blank instrument cluster display or an engine stall while driving. Either condition can increase crash risk. This recall also describes a no-start condition from water-damaged electrical components, so confirm your VIN and arrange the free dealer repair.
When were owners notified about recall 21V403?
Mercedes-Benz mailed owner notification letters on July 20, 2021. If you bought the vehicle used or never received a letter, the VIN still decides whether the recall applies. Check your VIN, then call a franchised Mercedes-Benz dealer if your SUV is included.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V403000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 21V403 |
| NHTSA recall # (full) | 21V403000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →