hi all Im new to this site!!!! just bought 2003 RS6 and its making hissing sound from somewhere? can anyone tell me what that sound is? doesnt sound torbo to me!! and one more thing i hear clicking sound from my engine(only when im at red light) when its on drive? tell me if u guys know anyting!!! thnak you!@!

 

weres the hissing coming from? the engine bay? and when do you hear the noise?

 

HI

i had the same problem with my 2003 RS6. It is caused by a loose cable clamp under the engine bay. U have to jack up the car and will find that the turbo air intake clamp has become loose

hope it helps

 

that sounds to be a likely culprit.