BMW 8 Series, X4 +7 more: Powertrain

Affects BMW 8 Series, X4, 2 Series, 4 Series, X6, Z4, X3, 3 Series, X5 · 2023 — about 79 vehicles.

The hazard

Issue: On certain vehicles, the integrated transmission control unit (ITCU) may not be sealed properly. As a result, transmission oil could leak into the unit and cause the transmission gears to seize. If this happens, there could be a loss of power to the wheels. Safety Risk: A loss of power to the wheels could increase the risk of a crash. Corrective Actions: BMW will notify owners by mail and advise you to take your vehicle to a dealership to replace the ITCU. The dealer will also inspect the transmission fluid and replace it, if necessary.

What to do

Contact your dealer; the remedy details were not included in the filing.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational