2004 Mercedes S430 Trunk Springs

I recently bought a 2004 Mercedes S430. It did not come with an electronic trunk opener/closer. It does, of course, open from the key fob or the front door, but it “pops” open loudly because of the (I guess) the tightness of the springs. It is also a bit hard to close. Are there pneumatic struts available to replace the springs? I’ve been searching the internet to no avail. I know this is not of the utmost importance, but I’ve become obsessed with this obvious flaw in an otherwise wonderful car.

SHEESH! look under the car,and the trunk will leave your mind forever.

HAVE A GREAT DAY!