Weird noise
Thread Starter
Newbie
Joined: May 2003
Posts: 10
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1989 300E
Weird noise
When my A/C is set to auto and the vents are set to regular (the down arrow), sometimes I hear a weird gurgling noise as if the cooling fluid is swishing behind the vents... it doesn't do this in bi-level or maximum cooling mode though, only when the outside temperature is cool (about 70F) and the inside is set to the same temperature. Any ideas as to what is causing this? Thanks in advance.
Thread Starter
Newbie
Joined: May 2003
Posts: 10
Likes: 0
1989 300E
In my case it only does that after it has been on for a while, and actually I just noticed it does do it in bi-level mode too. It doesn't seem to be having any problems but it just sounded a bit strange.
Member
Joined: May 2003
Posts: 173
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From: NorCal
Mercedes-Benz 400E
While my system was on I did noticed that the sound happens occasionally as well. It sounds just like water flowing in my case, only for a second or less. There might be a valve that releases water in. No worries though, just designed that way.
