I know quite a few of us dont like the ride quality of our w212, and most of us believe changing suspension setup and tires with thicker tire wall could give a softer ride, and they do, because I've done that already.
And now l have one simple trick to share and it costs literally nothing. Just use a small foldback/binder clip, make the safety belt loose, and you would feel the difference.
I wouldn't bother. You're defeating one of the safety systems which I think is Pre-Safe which tightens the belt before a crash. There's a reason you want the belt tight. Loose like that, well, you're getting closer and closer to not wearing a seat belt. You'd probably get injured more from traveling forward a little bit before slamming into the belt in an accident.
One of my wife's co-workers at the college has a GLE, '17 She drives about 50 miles each way to work and back. She doesn't like the seat belt sucking in after fastening so she puts it above her hips across her stomach to relieve the annoyance. Three days ago she was driving to work early morning after a late night school basketball game and hit a bridge abutment at over 50 plus, she now has extensive organ damage from the belt being too high on her abdomen, just sayin' sometimes our work arounds can be dangerous. She did get cuts and abrasions from the airbags also, apparently the side curtain went off as well as the steering wheel, 50-60k dollar Benz totaled, 32 year old young woman pretty messed up, but alive and likely going to be ok.
Knowing the risks is not quite the same as being able to live with the consequences. Think of those that care about you too. The financial toll can extend well beyond the loss of the vehicle. Your quality of life is also at stake.
To borrow a Clint Eastwood line from Dirty Harry, "... Do you feel lucky, punk?... Well, do ya?"
A very few times of my driving life of 42 years I have moved my car on the traffic roads without the seat belt on. It has scared me EVERY TIME how I could have missed fastening the belt. Now having two MB cars that have the seat belt tightening system it is nice to feel the car "loves" me with the belt.
After tightening the system relaxes and I can pull the seat belt loose to bend my body forward other than sometimes I need to un-buckle and do it again.
On front seats the air bags save a lot of lives but on the rear seat the belt is the only savior and even that does not always do it.
A very few times of my driving life of 42 years I have moved my car on the traffic roads without the seat belt on. It has scared me EVERY TIME how I could have missed fastening the belt. Now having two MB cars that have the seat belt tightening system it is nice to feel the car "loves" me with the belt.
After tightening the system relaxes and I can pull the seat belt loose to bend my body forward other than sometimes I need to un-buckle and do it again.
On front seats the air bags save a lot of lives but on the rear seat the belt is the only savior and even that does not always do it.
You get more deaths from the front seat as you can smash into the dash, steering wheel windshield whereas in the rear, you have more room in front of you and you just smash into the seat in front of you and it's further away than for front seat occupants. Basically by having a loose belt, the whole body moves forward until brought to a sudden halt by the belt. When the belt is tight, the body doesn't really move forward as much although your head moves forward. A loose belt is like getting clothslined.
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.