Some BA’s have been known to have multiple unrelated issues. This may be because the BA was rushed to market to save the Falcon after the AU failure. Although it did this in the short term, you may be better off opting for a later build BA.
Failing door locks
Brake shudder
Rear brake line issues
Faulty throttle position sensor
Camshaft solenoid failure
Jamming oil control valves
Brake rotors warping
Failing coil packs
Failing rear shock absorbers
Water pump o ring failure
Automatic gearbox may need rebuild