Recall 25V125 covers 13,769 2024-2025 Audi Q4 E-Tron, Q4 Sportback E-Tron, and ID.4 vehicles. OCDC repair will be free once available.
Audi is recalling 13,769 2024-2025 Q4 E-Tron, Q4 Sportback E-Tron, and ID.4 vehicles because the on-board charger can stop charging the 12-volt battery. That failure can cause loss of drive power and increase crash risk; the dealer repair will be free once available.
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What's wrong?
The OCDC control unit on 2024-2025 Q4 Sportback E-Tron, Q4 E-Tron, and ID.4 vehicles combines the onboard charger with the DC/DC converter. In plain terms, it manages charging and keeps the 12-volt battery supplied so the vehicle's electronic controls and assisted functions have steady power.
On affected vehicles, humidity can enter the unit. Because the printed circuit board did not have enough protective coating, moisture can allow electrical material to move across the board, a failure called electromigration. Once that happens, the OCDC can stop charging the 12-volt battery, which can lead to reduced electrical functions and loss of drive power.
Before drive power is lost, the driver receives several clear warnings. The instrument cluster can show warning lights and messages, audible chimes can sound, and the vehicle can reduce certain electrical driving functions.
Who's affected?
Includes the Audi Q4 E-Tron, Audi Q4 Sportback E-Tron, and Volkswagen ID.4, all tied to the same OCDC control unit.
| 2024 Audi Q4 Sportback E-Tron | battery |
|---|---|
| 2024 Audi Q4 E-Tron | electric propulsion system |
| 2024 Audi Q4 E-Tron | battery |
| 2024 Audi Q4 Sportback E-Tron | electric propulsion system |
| 2024 Volkswagen ID.4 | electric propulsion system |
| 2024 Volkswagen ID.4 | battery |
| 2025 Audi Q4 E-Tron | electric propulsion system |
| 2025 Audi Q4 E-Tron | battery |
| 2025 Audi Q4 Sportback E-Tron | electric propulsion system |
| 2025 Audi Q4 Sportback E-Tron | battery |
| Units affected | 13,769 |
| Field incidents | NHTSA has logged 244 field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific SUV is included.
What's the safety risk?
A loss of drive power increases the risk of a crash. Before power is lost, watch for instrument-cluster warning lights or messages, audible chimes, and reduced driving functions. If those warnings appear, pull over where safe and call the dealer before continuing. Repair will be free at any franchised Audi dealer once available.
What should I do?
- Check your VIN to confirm your 2024-2025 Audi Q4 Sportback E-Tron, Q4 E-Tron, or Volkswagen ID.4 is included in this recall.
- Use the owner letter mailed on May 20, 2025, or call Audi customer service if you need recall guidance before scheduling.
- Contact a franchised Audi dealer to ask when the free OCDC replacement that restores 12-volt battery charging is ready for your VIN.
- Reference recall number 25V125 and Audi recall 93FR when you call the dealer.
- Avoid long trips until the repair is complete, because loss of 12-volt battery charging can lead to loss of drive power.
What happens at the repair
The final dealer repair is still under development. Once it opens, an Audi technician will replace the OCDC, the on-board charger that keeps the vehicle's low-voltage battery charged. Parts and labor will be free under the recall. Out-of-pocket repairs already paid are handled through the new vehicle limited warranty, not through a separate reimbursement program, because the affected vehicles are within the warranty period. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| February 28, 2025 | NHTSA published the recall |
|---|---|
| March 4, 2025 | Dealer notification began |
| March 4, 2025 | Dealer notification ended |
| April 29, 2025 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| April 29, 2025 | Interim owner notification (was planned for this date) |
| May 20, 2025 | Owner notification mailed |
Frequently asked questions
What is recall 25V125?
Recall 25V125 covers 13,769 2024-2025 Audi Q4 Sportback E-Tron, Q4 E-Tron, and ID.4 vehicles. The on-board charger can fail and stop charging the 12-volt battery, which can cause loss of drive power and increase crash risk.
What should I do if my 2024-2025 Audi Q4 Sportback E-Tron, Q4 E-Tron, or ID.4 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 25V125. If it is, contact the matching franchised dealer and ask about OCDC replacement timing for your VIN. Reference recall 25V125 and the manufacturer recall number, 93CJ or 93FR, when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost. Dealers will replace the OCDC free of charge, with parts and labor covered under recall 25V125.
What is the safety risk?
The safety risk is loss of drive power. If the on-board charger stops charging the 12-volt battery, the vehicle can lose drive power while in use, which increases crash risk under NHTSA campaign 25V125.
When were owners notified about recall 25V125?
Owner notification letters were mailed on May 20, 2025. If you bought the vehicle used or did not receive a letter, check your VIN and call the matching franchised dealer with recall number 25V125.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/25V125000 |
|---|---|
| Audi customer service | 1-800-893-5298 |
| NHTSA recall # | 25V125 |
| NHTSA recall # (full) | 25V125000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Document (PDF) (PDF)
- Download Owner Notice (PDF)
- Download Recall Acknowledgement (PDF)
- Download Recall Report (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 →