Recall 25V643 covers 4 2026 BMW 430I and M4 vehicles for improperly connected positive battery cables. Repair is free at any franchised BMW dealer.
BMW is recalling 4 2026 430I and M4 vehicles because the positive battery cables are not properly connected to the power distribution box. The defect can cause an engine stall and a fire, increasing the risk of a crash or injury; BMW dealers will complete the recall repair free of charge.
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What's wrong?
The positive battery cable on the 2026 BMW 430I and M4 carries electrical power from the battery to the power distribution box. That box routes power to vehicle systems that need steady electrical current. The connection has to be tight, clean, and secure so power does not drop out or create excess heat at the terminal.
On affected vehicles, the cable connection at the power distribution box was not built to specification. A loose connection can interrupt electrical power while the vehicle is moving, which can stall the engine. The same poor connection can create heat at the contact point, which creates a fire risk. A BMW dealer checks and secures the connection for free.
BMW found the issue after an M4 Competition Convertible stalled during a plant driving test and showed a warning message. The recall information does not identify a specific warning sign that appears before the connection fails.
Who's affected?
Covers both 430I and M4 variants tied to the positive battery cable connection.
| 2026 BMW 430I | wiring |
|---|---|
| 2026 BMW 430I | battery |
| 2026 BMW M4 | wiring |
| 2026 BMW M4 | battery |
| Units affected | 4 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific car is included.
What's the safety risk?
An engine stall raises crash risk, and a fire raises injury risk. If your VIN is included in recall 25V643, schedule the dealer inspection soon and avoid delaying the cable and power distribution box repair. Repair is free at any franchised BMW dealer.
What should I do?
- Check your VIN to confirm your 2026 BMW 430I or M4 is included in this recall.
- Contact a franchised BMW dealer to schedule the free inspection for the positive battery cable connection and any needed cable or power-distribution-box replacement.
- Bring the recall notice if BMW has mailed one. If not, reference recall number 25V643 when you call.
- Drive cautiously until the repair is complete, and stop in a safe place if the engine stalls.
What happens at the repair
At the dealer, a BMW technician inspects the positive battery cables and the power distribution box, then replaces any cables or power distribution box parts that need replacement. Parts and labor are covered under the recall. Out of pocket repairs already paid are handled through the BMW New Vehicle Limited Warranty program, not through a separate reimbursement program, because warranty coverage applies to this condition. Ask the service desk how the warranty applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| September 25, 2025 | NHTSA published the recall |
|---|---|
| September 25, 2025 | Dealer notification began |
| September 25, 2025 | Dealer notification ended |
| November 17, 2025 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| November 20, 2025 | Owner notification mailed |
Frequently asked questions
What is recall 25V643?
Recall 25V643 covers 4 2026 BMW 430I and M4 vehicles with positive battery cables that were not properly connected to the power distribution box. The defect can cause an engine stall or a fire. BMW dealers will inspect and replace affected parts for free.
What should I do if my 2026 BMW 430I or M4 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 25V643. If it is, call a franchised BMW dealer and ask for the battery cable and power distribution box inspection. Reference recall 25V643 when you schedule the free repair.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. BMW dealers will inspect the positive battery cables and replace the cables and power distribution box when needed, free of charge.
What is the safety risk in recall 25V643?
The safety risk is engine stall or fire. An engine stall increases crash risk, and a fire increases injury risk. If your VIN is included, arrange the free BMW dealer inspection and repair before relying on the vehicle for regular driving.
When were owners notified about recall 25V643?
BMW mailed owner notification letters on November 20, 2025. VINs became searchable on November 17, 2025. If you bought the vehicle after those notices, check your VIN and call BMW customer service at 1-800-525-7417 or a franchised BMW dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/25V643000 |
|---|---|
| BMW customer service | 1-800-525-7417 |
| NHTSA recall # | 25V643 |
| NHTSA recall # (full) | 25V643000 |
Source documents
-
Download Quarterly Report (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 19, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →