Noise from rear wheels

[730Li]

My brand new 730LI 2012 model started to make sound like "HISS" and sound as "SSS" from rear wheels and may be from rear suspension. The sound is very minor and can be heard only on low speed around 30 km/h and while passing road hump. dear checked all suspension and other stuff and reported that everything in brand new condition and they advised me to leave being it's not a safety concern and by time the sound might became louder and tell us where it is.
Seeking your experience in similar issue or any advice.

Thanks in advance.

[bmw550ib]

My brand new 730LI 2012 model started to make sound like "HISS" and sound as "SSS" from rear wheels and may be from rear suspension. The sound is very minor and can be heard only on low speed around 30 km/h and while passing road hump. dear checked all suspension and other stuff and reported that everything in brand new condition and they advised me to leave being it's not a safety concern and by time the sound might became louder and tell us where it is.
Seeking your experience in similar issue or any advice.

Thanks in advance.

I have same thing on my 06 550i. Do you know by now or do you have any idea what is it ?

[730Li]

I have same thing on my 06 550i. Do you know by now or do you have any idea what is it ?
Actually dealer found out the root cause of this sound after 10 days of checking and here it's, it was from the rear break of one of the rear wheels where there is a cable coming from front to each rear wheel break system and this cable is fixed / handled to each wheel by kind of steel clip. this steel clip was loose and once they changed it the sound went forever.
Hoping this will help and you have the same issue since dealer were looking and investigating so many sophisticated issues like self leveling and suspension and spent long time to make sure these items are OK and finally it was very silly & simple issue.

[bmw550ib]

Actually dealer found out the root cause of this sound after 10 days of checking and here it's, it was from the rear break of one of the rear wheels where there is a cable coming from front to each rear wheel break system and this cable is fixed / handled to each wheel by kind of steel clip. this steel clip was loose and once they changed it the sound went forever.
Hoping this will help and you have the same issue since dealer were looking and investigating so many sophisticated issues like self leveling and suspension and spent long time to make sure these items are OK and finally it was very silly & simple issue.

Thank you. I will try to find it