Hello,

recently, my car have some strange hissing noise when a/c is on.
i think its making some kind of hissing noise every 2-3 min interval.
anyone experience similar problem? or is it normal?
any input will be appriciated.

It's a dull hissing right? Had the same thing happen in my C class, dealer checked it out and said there were no issues other than it needing a coolant re-charge. After that, no sounds.

I am taking it to dealer tomorrow so we will see that they have to say..