What to do if the trunk of a Citroen C-Quatre cannot be opened and the lock button is unresponsive?

[SadieLynn]

The solution for the trunk of a Dongfeng Citroen C-Quatre not opening is: You can enter through the rear door of the car, locate the mechanical switch next to the lock block, and pull it to open the trunk. Taking the 2016 Dongfeng Citroen C-Quatre as an example, its body dimensions are: length 4588mm, width 1773mm, height 1486mm, wheelbase 2610mm, fuel tank capacity 60l, luggage compartment capacity 481l, and curb weight 1350kg. The 2016 Dongfeng Citroen C-Quatre is equipped with a 1.6l naturally aspirated engine, with a maximum horsepower of 117ps, maximum power of 86kw, maximum torque of 150nm, and is paired with a 4-speed automatic transmission.

[VanElle]

Last year, I also had the frustrating experience of not being able to open the trunk of my Citroen C-Quatre. Pressing the unlock button didn’t elicit any response at all, and I later discovered it was due to a blown fuse. This little component is located in the fuse box near the driver’s seat—just pull it out and check if the fuse marked for the trunk has melted. If it has, simply replace it with a new one. If that doesn’t solve the issue, the button might be stuck; try spraying some WD-40 lubricant to loosen it up. Alternatively, there could be a short circuit in the wiring, especially after rain when moisture can cause poor contact. Some owners have reported issues with the control module, requiring a multimeter to check for stable voltage. In my case, replacing the fuse fixed the problem. But if you’ve tried everything and the trunk still won’t open, drive straight to a 4S shop or professional repair station to avoid being stuck without access to your trunk contents. Regular maintenance of the locking system and avoiding overloading the trunk with heavy items can help prevent such issues.

[McJonathan]

When the trunk button on my Citroen C-Quatre didn't respond, my heart sank immediately - this is a serious issue that could become critical during a flat tire or emergency tool access. Start with basic checks: inspect the trunk fuse in the engine compartment or under-dash fuse box for burnout, replacing it with a spare if needed (a quick DIY fix). For button failure, try pressing repeatedly or gently tapping the surface to check for loose contacts. Don't overlook wiring issues either, especially aging wires prone to short circuits. If problems persist, resist forcing it open - I've seen a friend damage lock mechanisms by prying, leading to costlier repairs. Instead, drive to a nearby workshop for professional diagnosis of the electronic control system using proper tools. Safety should always come first.

[Hayden]

The Citroen C4 trunk lock not responding is mostly due to electronic issues. Focus on checking the fuse, which is labeled in the fuse box under the dashboard—replace it if blown. The button contacts might be dirty or oxidized, causing a short circuit. More likely, the control module or relay is faulty; you'll need to inspect the wiring connections for stability and damage. Such problems are common in older cars. I once fixed a similar case by simply unplugging and reconnecting the connector a few times. If you can't handle it yourself, take it to a repair shop.

[StMarley]

The trunk lock won't open no matter what button I press, I suspect it might be a mechanical component failure. First check if the button is stuck, try spraying lubricant or manually shaking it loose; broken cables are also common, for Citroen C-Elysée models there's usually a manual release switch near the rear seats - find it and pull hard to open. Don't forget to check if a fuse is blown, just replace it simply. If that still doesn't work, consider lock cylinder rust or deformation, have a mechanic adjust it with tools, and maintain it regularly to prevent dust accumulation around the lock from causing issues.

[TannerAnn]

My Citroen C-Elysée's trunk had the same issue before - pressing the lock button with no response was really frustrating. The diagnostic process isn't complicated: First check if the fuse is blown (located in the driver's side fuse box), then test whether the button functions properly (clean dust if dirty), and finally inspect for loose wiring connections as short circuits can easily interrupt signals. For electronic control components, professional repair is needed if the relay or control module is damaged. When I handled it myself, replacing the fuse fixed it initially - if that doesn't work, I'd recommend visiting a workshop for technicians to thoroughly inspect the circuit system to prevent recurrence. Remember, regular cleaning of the trunk lock area can significantly reduce such problems.