Mercedes-Benz Trunk Won't Close, Lock or Shut

Mercedes-Benz Trunk Won’t Close, Lock or Shut

Have troubles with your Mercedes-Benz trunk that won’t close? Learn how to fix the problem by following the procedures below.

A common problem is that a Mercedes-Benz trunk won’t stay closed. This is a problem with Mercedes-Benz cars that use a power trunk lid and can affect various models, including C-Class, E-Class, S-Class models, etc.

The trunk won’t stay close because the car loses the memory setting for the trunk. This problem usually happens after the car battery dies or the battery gets replaced. Pressing the green trunk release button inside the trunk a few times will allow your trunk to close in most cases.

  1. Open the trunk up. Open trunk all the way up
  2. When possible, spray penetrating grease on the latch—not required but recommended. MERCEDES TRUNK WON'T CLOSE SHUT STAY CLOSE
  3. Locate the round green button on the trunk lid. This is typically accessible from inside the trunk.
  4. Press the green button several times. You should hear the trunk latch click. PRESS THIS GREEN BUTTON TO CLOSE MERCEDES TRUNK
  5. Close the trunk lid; in most cases, it stays shut.

Of course, the first thing that comes to mind is that you have a bad trunk latch, but before you replace the trunk latch, we have a couple of tips that may save you some time and money, plus get your trunk lid shut.

If this procedure does not fix the problem, the most likely solution is to replace the trunk latch.

Frequently Asked Questions

What is the green button on a Mercedes-Benz trunk?

The green flashing round button behind the trunk lid is the safety release button to unlock the trunk from the “inside.” If somebody or a kid is locked inside the trunk compartment, they can locate the blinking green button and press it to open it. If the car battery dies, the green button won’t work or open the trunk.

Why is the trunk of my Mercedes not locking?

The most common problem with your Mercedes trunk not locking is a faulty trunk locking mechanism. This happens when you lock the vehicle, and the locking mechanism or lock actuator doesn’t work.

How much does it cost to fix a trunk that won’t close?

Depending on the condition of the damage, whether you need an auto repair shop to fix the problem or just replacing for brand new parts. It can cost around $150 – $400.

We hope you find the Mercedes-Benz Trunk Won’t Close, Lock, or Shut guide helpful. Check these troubleshooting and repair guides for more help on your Mercedes-Benz.


  • Rushit Hila • ASE Certified

    Rushit Hila, an ASE-certified engineer (G1 Automotive Maintenance and Repair), brings over two decades of hands-on experience in the automotive world to his writing. With a strong educational background, including a Master of Science in Engineering and a Bachelor of Science in Engineering, he has honed his skills and expertise through years of practical work. As a respected authority in the field, Mr. Hila is dedicated to offering insightful and valuable content that resonates with both vehicle owners and mechanics.

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  1. Thank you for saving me several thousand dollars. You’re the real MVP.

  2. Alisa Sandoval says:

    Thank you for the information! I tried it and it worked.