My Door Don't Feel Like a MB Door

I've noticed on my C280 that all of the doors on the car have that heavy, smooth MB feel to them when you open and close them - except the driver's side. Looking on here I was wondering if it's something to do with the door check strap. It feels lighter than the rest of them, if that makes any sense. The rear doors especially open and close like a bigger benz. Any ideas? I love that solid "thunk" but don't get it on my side. It kind of makes a clack sound when you open and close it, and doesn't hold the door too well. Gracias!


Geoff