hi guys,im a new owner of a 2003 a4 quattro 3.0, triptonic, 91,500 miles, when i driven in city evereithing its ok, but when i make a stop on a ligth sing in "D" i feel a vibration under the car, if i change the stick to "N" the vibration desapers, WHAT DO YOU THINK? thanks in advance!

 

motor and/or trans mounts more than likely. If its a noise like banging, probably a worn exhaust hanger(s)

 

Might be that the idol is off, and needs some adjustment.

 

WTF?????? Idle needs adjusting? This is not a 85 Chevy with a carburetor.
The idle is electronically controlled by the ecm.
More than likely you have a bad motor or transmission mount.

 

or your snub mount is gone!

 

Thats rigth guys, today i take my car to the trans shop and the mechanic says its the motor tranny mount. Thanks a lot!!

 

Glad you found the culprit

 

HI GUYS, IM HERE AGAIN, THE MECHANIC CHANGE THE TRANSMISSION MOUNT AN THE VIBRATION STILL THERE, NOW HE SAY ITS THE FRONT CENTRAL SUPPORT AND THE LEFT SIDE SUPPORT TO, BUT HE DONT WANT TO MAKE THE JOB, DO YOU KNOW WHERE CAN I SEE SOME INFORMATION TO CHANGE THE ENGINE SUPPORTS? SOMEONE HAS THE SAME PROBLEM? WHAT CAN I DO KNOW? HELP ME PLEASE?