What to Do When the BMW 5 Series Trunk Won't Open?
3 Answers
Reasons why the BMW 5 Series trunk won't open are as follows: 1. Linkage rod or lock cylinder issue, not unlocked. 2. Mechanical component failure. Methods to open the trunk are as follows: 1. Key remote control—simply press the trunk opening button on the car key. Some models may not have a trunk opening button on the remote key; in such cases, pressing the unlock button will also release the trunk. For models equipped with a smart key, as long as the remote key is within a certain range, pressing the switch on the trunk will directly open it. 2. Control switch button method—the button location varies depending on the manufacturer and model. 3. Other opening methods—if the model is not equipped with a button or lever, it means the trunk is linked with the door lock. Simply unlock the central control, and the trunk can be opened from the rear.
I've been driving a BMW 5 Series for several years and have encountered the issue of the trunk not opening. Once during a trip, no matter how many times I pressed the button, it wouldn't open, which gave me a real headache. First, I tried replacing the remote key battery, but it didn't work. Then, I found the hidden keyhole at the bottom of the trunk—prying open the small cover and using the mechanical key successfully opened it. During the repair, it turned out that a fuse had blown, and the mechanic replaced it with a new one, fixing the issue instantly. Turns out, minor electronic system malfunctions are common; avoid forcing it open to prevent damaging the lock mechanism. Now, I regularly spray rust remover for maintenance to keep the lock functioning smoothly. For daily use, it's advisable to keep a spare fuse in the car for emergencies—it saves a lot of hassle. Also, pay attention to battery life and check it every six months to prevent issues early on and avoid unnecessary trouble.
To address BMW trunk issues, common causes include a dead remote battery, blown fuse, or sticking lock mechanism. Don't panic—first try opening it with the interior button or locate the mechanical keyhole on the trunk. Check the fuse box in the cabin and refer to the manual to find and replace the trunk fuse if needed. Loose wiring could also be the culprit; use a multimeter to test circuit connectivity, but avoid tampering if you're unfamiliar with electrical systems. It's advisable to avoid placing heavy objects on the trunk to prevent structural damage. Keep electronic components clean and dry to prevent corrosion, such as covering protective caps during rainy seasons. For complex issues, consult a 4S dealership for professional diagnosis rather than wasting time and money on DIY disassembly.
