BMW 740iL seat control and sunroof malfunction possibly due to bad wiring after sitting for four years on BMW 740iL

Some BMW 740iL owners report experiencing seat control and sunroof malfunctions after their vehicles have been inactive for four years. These issues may stem from bad wiring caused by prolonged inactivity, as moisture or rodent damage could compromise connectivity. Owners are advised to have the wiring inspected by a professional to identify and repair any damage. Additionally, sunroof malfunctions may also be linked to degraded electrical components or wiring, necessitating a thorough inspection by a qualified technician. To prevent similar problems in the future, some owners recommend periodically starting and running the vehicle, as well as storing it in a dry, secure location to minimize moisture-related damage. Prompt professional maintenance is essential for effectively resolving these issues and preventing future complications.