Originally Posted by christo76
I don't have to hold my key until the start. Just the initial twist and immediate release and it starts on its own. Unless I am totally misunderstanding what you mean.
Can you verify this? Maybe the start is really quick so the moment you twist it, it start right away. Let's say if the start takes 1 seconds, you would have to hold it.
Our key(the flip one) need to hold. The newer Mercedes has smart key(no metal part seen) can have the auto start.