One problem related to seats has been reported for the 2004 BMW 645. The most recently reported issues are listed below.
Passenger seat oc3 occupancy mat not working-it shows a fault code- I took it to birmingham BMW and was told I have to get a new BMW battery and battery cable. They charged me $ 120 to diagnose this problem but did nothing to fix the oc3 mat that is faulting. I have checked on line and this does nothing.
| Front Seat Head Restraint problems | |
| Seats problems |