Anyone knows how to open the doors or trunk, battery is dead and remote doesn't work, I have the key, but handles are not coming out

You can pry open the door handle and there is a key slot you can use to unlock the door. I had to do this when my battery died during the ppf installation.
Get a micro fiber cloth and use that to protect the paint when prying out the door handle.

yep, that did it, thanks

My battery almost died when I was trying for 30 mins to connect to the garage door. Got the low battery messages on my phone and immediately took it for a spin around town lol.

The smaller 12 volt battery will die quickly and then you receive lots of error codes until the battery power is restored. I left a door slightly open for 30 minutes and returned to a no start condition.

I hate this about our GT's --- the trickle stays on alot in my garage.

Does it have a lithium battery like the S63 coupe has? Just moseying through after building a coupe on the Mercedes site.