I have a 2005 Mercedes S 430. Trunk won't open either from inside the car or by pushing trunk button. Any suggestions

Many People don't know exactly how to use the manual key attached to your remote to open the doors and trunk in case the battery is dead. All you have to do is slide the locking button in the back of your remote and pull the metal pre-cut key, then insert it in the trunk lock, turn key to the left and then push in. kawaboongha!!!

Button inside glove box (on left side) disables trunk opening...just push it again and trunk can be opened...worked for my 2007 Avalon. I must have bunped it by accident to disable the trunk and didn't realize the button existed. T

The latch is most likely the issue. If the trunk is used a lot, the latch is misaligned or a foreign object obstructed the latch from closing. The latch itself could be damaged. Carefully inspect the opening of the latch and look for bent, mushroomed or damaged steel. I would have to see to know for sure, how to proceed.

The springs should have viscous fluid in them that prevents opening fast. Replace again.

what's the year and model of your car? need that information to help you. leave details.

How to Repair Trunk That Won Open part 1
How To Install Replace Trunk Latch 2006 12 Chevy Impala

test the electric pop trunk motor its on the back of the latch. use a test light and see if its getting power when you push the trunk release. also that trunk release is a button inside car not a cable if that correct then there a problem with the remote.

Your Valet cancel switch is set.


Open your glovebox and you will see a pushbutton on the the left side, if memory serves. When this button is set, the power button will be disabled, but the key fob button will still work.
This is for when you Valet your car, you push the cancel button in the glovebox, lock the glovebox, then give the Valet your Valet key, which will not open the trunk or the glovebox. Voila, no Valet rummaging through your trunk :)

Often full gloveboxes will be the cause of the button getting pushed accidentally.

The trunk should auto close when you manually lower the lid to the almost closed position, but it is NOT designed to open up fully when you hit the trunk release on the key fob, nor when you open the trunk manually using the touch sensitive button under the lip of the trunk.

Have you checked for blown fuse in panel.