The 2023 BMW Z4 has 3 recalls, the most serious involving transmission oil leaking into the transmission control unit, which can cause the gears to seize and cut drive power without warning.
The remaining two recalls both address the same underlying issue: a software error that allows the windows and convertible roof to close even when no digital key is present in or near the vehicle, which raises the risk of injury to anyone caught in the closing mechanism. Prior repair attempts did not fully resolve this issue, and a second software update has been issued to address what the first did not.
At a glance
What can fail
A faulty weld on the transmission control unit's cover may allow transmission fluid to leak into the control unit.
What the fix does
Dealers will replace the transmission mechatronics module and automatic transmission fluid as needed at no cost.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A software issue allows the windows and roof to close using a digital key even when the key isn't inside or near the vehicle, violating Canadian regulations requiring the key's presence.
What the fix does
BMW will mail instructions to visit a dealership for an electronic control unit software update that restores the required key-presence check.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
After removing the digital key, the vehicle's control software may still allow the power windows and sunroof to close, violating safety standards for power-operated windows.
What the fix does
Dealers will update the Electronic Control Unit software at no cost. Digital key access via cellular and Wi-Fi will be disabled until the update is installed.
Summarized — see the official notice for exact wording, dates, and contacts.
