Which vent mount do you use to hold your cell phone? I like the design of these vents but because they swivel, the cell phone is all over the place when driving with a regular vent mount. Looking for something more stable.

 

I don't use a vent mount, I use a cell phone mount called Neutron A by Bungajungle.
It sticks to the dashboard

 

I use a couple of different ones, one is the Clingo which lets you stick your phone to the holder, works nice but vent mount is fixed.

The other one (and probably better for the w205) is my Breffo. The pic below is it mounted on my F10 BMW 5-Series and you can adjust the legs to suit the round vents of the Merc. Holds it securely also

 

Kenu airframe
http://www.kenu.com/products/airframe

 

Do you have a pic of where you mounted it? Looks very interesting... I'm deciding between the Neutron S and A.

 

I have the Kenu Airframe+, works great in the middle vent right below the screen. Would be nice if it was a bit higher just so I don't have to take my eyes off the road, but it works.

 

The phone doesn't move around while you're driving? I tried a similar mount and it was all over the place

 

Nope, doesn't move. You can adjust the mount to fit vents with thicker or thinner blades, I think I used the setting for the thinner blades and the phone doesn't move for my iphone 6+ or my wife's 6.

 

I Got both and it matches the aluminum that is all around the car. I like consistency
Its the best mount ever. Its aesthetically pleasing. The magnet is so strong that the phone never moves or shakes.