Strange noises from new C Class

[Aaron_Merc]

I've only had my 2017 C Class for 4 weeks but today I noticed a strange subtle wining noise, like air escaping or a gentle breeze type sound as the car was moving (all windows and sunroof were closed tight). I then noticed that when I parked the car and turned off engine, there were creaking noises coming from under the car and it seemed to be coming from all wheel areas. Do you think these noises may be related to the airmatic suspension? I've not heard these noises before so I'm a little perplexed, are these noises common or should I take back to the dealer if the noises continue? The airmatic appears to be working fine.

Thanks.

 

[John Laidlaw]

Airmatic suspension does make noises - the compressor will give a little 'hiss' when it's equalising - nothing to worry about!