A Mercedes is no different than other vehicles and vibrations are caused by exactly the same things. They can be caused by anything from an out of balance wheel to a burned valve. It all depends on the type of vibration. Sometimes you just need an experienced mechanic to have a little time with the vehicle so there can be an accurate evaluation.
Sometimes just listening to the vehicle or taking it up to highway speed is enough for an experienced mechanic to tell you what's wrong.
What are the causes and sources of vibration on diesel
Resonance.
noise and frequency are made a vibration
a vibration occurring
When one part of a vibration causes air particles to spread out, they form ararefaction
When one part of a vibration causes air particles to spread out, they form ararefaction
One of the main causes of feeling a vibration in the gas pedal is engine vibration. The vibration from the engine causes the accelerator cable or linkage to vibrate and the vibration can be felt in the gas pedal. Check with a mechanic to be sure.
Tiny bugs
I had a vibration in my 2002 and I replaced the sway bar and sway bar links.
Sharp power pulses.
sound energy is caused by vibration.
Most of the vibration, and the sound that is a result of that vibration, is in the tubes of the chime. When they hit each other it causes a vibration at a certain frequency which causes a note to issue from the chime. I've linked a wind chime guide that shows the different parts of a chime, part #5 is where the vibration occurs.