jhpmbusa

Has anyone witnessed a hissing noise from the dashboard? It happened right after i took a turn (not very hard at all) car now only has 351 miles on it... sort of sounds like a radio frequency, but closer to a hissing sound to be accurate.... I did have my phone on but do not really think its coming from it.. very hard to locate exactly where the noise is coming from. It stops when i come to a complete stop by comes back on when driving...

Hopefully, it goes away next time i drive the vehicle... but this is probably just wishful thinking

decorily

Do you have wireless charging. ...it is known to sometimes make a buzzing sound.

stockbmw

Probably the diff, if the noise come and go at around 50mph or 80kmh

jhpmbusa

i do have the wireless charging, sounded more like it was coming from the steering area?

Fortunately, even happens at all speeds and lower speeds, so luckily its probably not the diff...

Baldur!

I think I have it too. From time to time, not long after starting to drive. I tried to make a video, but it always disappeared when I took the phone...and then my wife told me that it may be the reason. So, wireless charging seems a good explanation for me, but drives me a bit crazy...

jhpmbusa

does it sound sort of pneumatic? like it sort of has a compression behind it? like it releases air sort of....

EdC43AMG

Do you hear it with the engine off, but you have power in the cabin? e.g. you just switch off the engine, or just switch on the ignition and have power in the cabin? It's like a fan sound, like those in the computers

In the dashboard, when you have power in the cabin during some time, you can listen it, from the dashboard electronics, like a fan sound. If so it could be the cabin ait temperature sensor. It's usual, but if it does too much sound it could be some dust it's blocking the fan.

Baldur!

No, I think "hissing" and "radio frequency" are the best words to describe it . Since last time I had it once (with the phone inside inductive charging area) - after I had lifted it, the sound was immediately gone.

TWINTURBOS

I have the hissing that you describe when I accelerate very hard, usually on second gear. It feels like a scrambled radio frequency from the speakers.