I have 2001 Mercedes cl 500 The remote control will not open the trunk and will not lock the doors even thoug?

If the little red light on the key flashes, it tells you there is some battery juice remaining. Sometimes you can tap the key against the palm of your hand to get it going temporarily but the only real fix is to replace the key.

The closing assist (or soft close as you call it) is another, unrelated matter. Since you mentioned the doors and trunk no longer have the closing assist, the problem is likely the pump itself that is gone.

i'm undecided relating to the ML, yet in my C classification, u can no longer lock the motor vehicle by potential of pressing the means door lock button IF ANY OF the front doorways ARE OPEN. What u ought to do is, make confident the two front doorways are closed, open the back door, pass in in the process the back seat and press the means lock button. all the doorways will lock, however the alarm should not be armed

it could be as simple as replacing the battery, autozone offers free keyless remote battery test.