Derrick39

2013 e550 4matic. 98k miles. buzz or vibration on light acceleration mostly felt in the gas pedal. new tires are properly balanced. mostly felt at highway speeds. The vibration speed feels like a u joint. Has anyone else seen this. (Ive been a tech sinse the late 70s) Derrick

n2dsky

I just replaced front drive shaft - at about 86K miles . . u-joint failed catastrophically . . . very expensive repair . . . suggest you have it checked ASAP!