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Engine and transmission · UNITED STATES

23V821000: Engine and transmission recall for BMW 8 SERIES and 9 other models

BMW 8 SERIES and 9 other models: check the listed vehicles, the reported issue and the manufacturer remedy for 23V821000. Keep the official status and service answers in one private record.

Official record checked 2026-10-19 UTC · Filing date 2023-12-06

Start with the specific vehicle

The report lists 10 model-year entries. Read the equipment and production restrictions in the reported issue, then use the official lookup or manufacturer to establish whether this campaign applies to your vehicle.

View the listed model years
  • 2023 BMW 8 SERIES
  • 2023 BMW X3
  • 2023 BMW 5 SERIES
  • 2023 BMW X4
  • 2023 BMW Z4
  • 2023 BMW X6
  • 2023 BMW 4 SERIES
  • 2023 BMW 3 SERIES
  • 2023 TOYOTA SUPRA
  • 2023 BMW X5

Check your VIN on NHTSA →

Enter the VIN only on the official service or manufacturer site. This worksheet does not ask for it.

What the official report says

BMW of North America, LLC (BMW) is recalling certain 2023 Toyota GR Supra, 3 Series Sedan (330i xDrive, M340i xDrive, M3), 5 Series Sedan (530i, 530i xDrive, M5), 4 Series Gran Coupe (430i, 430i xDrive), 4 Series Coupe (430i, 430i xDrive, M440i xDrive), 4 Series Convertible (430i, 430i xDrive, M440i xDrive), 8 Series Coupe (840i, M850i xDrive, M8), 8 Series Convertible (840i, M850i xDrive, M8), 8 Series Gran Coupe (850i xDrive, M8), X3 SAV (X3 xDrive30i, X3M), X4 SAV (X4 xDrive30i), X5 SAV (X5 xDrive40i, X5 M50i, X5M), X6 SAV (X6 xDrive40i, X6 M50i, X6M), and Z4 sDrive30i, Z4 M40i vehicles. The weld seam of the integrated transmission control unit's cover may not have been manufactured properly, which could allow automatic transmission oil to leak into the transmission control unit.

Official NHTSA campaign record

Why the reported issue matters

Transmission oil that leaks into the control unit can lead to a seizure of the transmission gears, causing a sudden loss of drive power and increasing the risk of a crash.

Official NHTSA campaign record

Prepare your observation

Record an existing symptom and its date. Do not reproduce a loss of power, stall or transmission fault in traffic.

A reported defect describes the campaign. It does not establish what caused a symptom on your individual vehicle, and absence of a symptom does not establish that an open recall is complete.

The reported manufacturer remedy

Dealers will replace the transmission mechatronics module and the automatic transmission fluid, as necessary, free of charge. Owner notification letters were mailed January 26, 2024. Owners may contact BMW customer service at 1-800-525-7417.

Official NHTSA campaign record

Confirm current remedy arrangements

The source does not explicitly establish current remedy availability. Ask the manufacturer about the applicable remedy, required parts or software, appointment arrangements and any interim instructions.

This describes the dated source record. Current arrangements for your VIN remain unconfirmed.

Additional official notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

View the source

Choose the next step from the official result

Not checked or unavailable

Keep eligibility unconfirmed. Use the official lookup or contact the manufacturer with 23V821000.

This campaign is open

Confirm current interim instructions, remedy availability and service arrangements. Keep the dated answer.

Not listed as open

Review earlier repair records and lookup limits if needed. A zero-open result does not explain an unresolved symptom.

Work order records recall work

Keep the campaign number, remedy and date together. Ask separately about a symptom that remains after the visit.

Your campaign-specific service questions

Use these questions with the official report. Keep the answers beside the remedy record; “discussed” records a conversation, not a completed repair.

  1. Does the manufacturer confirm that campaign 23V821000 applies to this VIN, including the report’s equipment and production restrictions?

    A matching model and year is only a starting point. The official lookup or manufacturer must establish the individual vehicle’s status.

  2. What remedy, required parts or software, and appointment arrangements are currently available for this VIN, and which interim instructions apply?

    The source does not explicitly establish current remedy availability. Ask the manufacturer about the applicable remedy, required parts or software, appointment arrangements and any interim instructions.

  3. Which engine or transmission component is covered, and does an existing drivability problem need separate diagnosis?

    Compare the answer with the reported component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM).

  4. If an inspection determines which work is needed, what was inspected, what was found, and which corrective work followed?

    Ask for the inspection result as well as the final action. A parts list alone may not describe an inspection-based remedy.

  5. Which items in the reported replacement remedy for 23V821000 were replaced, and are they identified on the work order?

    Keep the replaced items and the campaign number together so that a later visit can distinguish recall work from other repairs.

  6. What dated document records the remedy performed under 23V821000, and what should I do if the reported concern remains?

    Keep campaign completion and unresolved symptoms as separate questions. A saved worksheet or booked appointment does not establish a repair.

Download the full guide and blank worksheet

Source and lookup coverage

NHTSA 23V821000: official campaign data · Official lookup and coverage limits

The quoted issue, consequence and remedy come from the official record as checked above. This independent guide adds a vehicle-check decision process, service questions and a private worksheet. Confirm current eligibility, remedy availability and interim instructions with the manufacturer.

The official VIN lookup may omit completed recalls, some recent campaigns and recalls outside its coverage. Vehicle notes and answers stay in this browser. A downloaded brief contains your notes; keep it appropriately. Groundwork is independent of NHTSA and the manufacturer.