Why can't the trunk of BMW 730li open?
3 Answers
Reasons why the trunk of BMW 730li cannot open: issues with the linkage rod or lock cylinder; not unlocked; mechanical component failure, etc. Detailed explanations of the reasons are as follows: Linkage rod or lock cylinder issue: If you frequently use the key to open the trunk, the linkage rod may be disconnected, and you should go to a repair shop to have it fixed. If you always use the remote control to open the trunk, the lock cylinder may be dirty or rusty. Spraying a rust remover into the lock cylinder a few times can help open it. Not unlocked: If the remote key is not used to unlock, it will be difficult to open. Before opening, it's best to press the unlock button on the key or check if the key battery is dead. If the battery is dead, replace it with a new one. Mechanical component failure: The trunk wiring may be broken, or other trunk-related issues may cause the trunk to not open. It is recommended to go to a 4S shop for repair or replacement.
I've been driving a BMW 730Li for several years and have encountered the trunk not opening issue a few times. Sometimes the remote key button doesn't work, which turned out to be a dead key battery - replacing it solved the problem. It could also be that the trunk lock is stuck; try gently pushing the lid or using the manual physical key. Luxury cars have many electronic systems, so the module controlling the trunk might malfunction, or sensors covered in dust could cause misjudgment. Additionally, check the fuse box located in the glove compartment on the passenger side - there might be a blown fuse for the trunk circuit. If it still doesn't work, I recommend not forcing it open to avoid damaging components; instead, drive directly to the dealership to diagnose the issue with their computer. For regular maintenance, I periodically spray lubricant on the lock and check the battery frequently to minimize problems.
There are several common reasons why the trunk won't open on a BMW 730Li. First, it could be an electronic control issue, such as weak key signal (try replacing the battery) or poor contact in the trunk button (try cleaning dust). Second, mechanical failure like stuck lock linkage (spray some WD40 for lubrication) - in emergencies, use the manual release cable. Third, vehicle software bugs may cause system reset failure; disconnecting the battery negative terminal for a few minutes might help. Don't skip checking fuses (simple and safe; location shown in diagram instructions). Avoid forcing it during the process to prevent accidentally triggering the anti-theft system and increasing repair costs. Recommended troubleshooting sequence: prioritize professional workshops to avoid incorrect disassembly of electronic components.
