Sibilant Noise

[MundeDas]

I own a 2024 Autobiography LWB that has accumulated little more than 10,000 kilometres. Upon parking the car and moving away, I have lately seen the occurrence of a hissing sound. The action is brief and rapid, like the release of pressure via a valve. I presume that pertains to the air suspension. Upon my first encounter, which occurred very recently, I found it quite disconcerting. There are no more documented problems with either the suspension or the car. Is anybody else perceiving this auditory stimulus? Is it customary?

[DownContent]

I believe that is a common occurrence, since all of my vehicles exhibit this behaviour after I have parked them. The peculiar aspect is that it occurs sporadically, making it difficult to determine the underlying reason.

[Anhartic]

My device exhibits the same behaviour. I surmised that it may just possess the characteristic of self-leveling, but I am uncertain.

[Starat]

The car automatically lowers itself when you shift it into park, switch off the engine, and open the door to escape. I am unsure why it would occur sometimes, since my device has this issue consistently.

Seth is a 24-year-old individual with a P530 designation.

[Anhartic]

The process of lowering to access height should occur well in advance of his departure from the vehicle.

[DownContent]

The auto lowering is not the issue. I have deactivated that feature on my device due to its lack of consistency.

Whenever I perceive the sound of a prolonged hissing and gradual decrease in noise level many seconds after the vehicle has been parked, I can confidently attribute it to the rear suspension.

[MundeDas]

I concur with DownContent's viewpoint that the issue lies not with the automatic lowering mechanism, but rather with its sporadic nature. Moreover, it may be rather surprising. According to these remarks, it seems to be within the expected range, which is positive. Thank you for the replies.

[Notef]

Both my 405 and now 460 exhibit the same behaviour, which I consider to be completely typical operating. The 460 emits a louder and more powerful discharge. Being positioned behind the vehicle might certainly cause a sudden shock or surprise.

[PopeyeR]

Does it resemble this?

 

[PopeyeR]

https://en.wikipedia.org/wiki/File:Tarakan.ogg

[Boxck]

My L460 emits a hissing sound after being parked. According to another discussion, it seems to be a mechanism for levelling or adjusting an airbag. There is no cause for concern.