BMW X5 2024 — technical service bulletin
Bulletin B640325 · NHTSA communication 11015556 · issued Mar 10, 2025
Technical service bulletin
communication type
Electrical System
component
2024
model years
2
vehicle entries
Official summary
Check Engine Light is illuminated, check control message indicates “bring in for service”. The faultsthemselves and the Malfunction Indicator Lamp (MIL) have no functional effect on the vehicle. There are multiple missing message fault codes (DTC) stored in the integrated automatic heating/airconditioning system (IHKA) control unit. These faults may include: E71458 - AC-LIN: Message EKMV20 E71459 - AC-LIN: Message EDH.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.