Popping sound from AC, what is it?
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1992 400E (180K miles)
Popping sound from AC, what is it?
I have a 92 400E and when my ac is on, I hear a popping or thumping sound from the passenger side. AC works fine.
Anyone else have this and is it a precursor to a problem?
thanks
Beekster
92 MB 400E (155K miles)
07 Jeep Commander Limited 4x4
Anyone else have this and is it a precursor to a problem?
thanks
Beekster
92 MB 400E (155K miles)
07 Jeep Commander Limited 4x4
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1992 300e 2.6
is it just once when you turn it on? mine makes a thunk sound as the little valve things change the direction of where the air is coming from. Like from going from off to AC or off to VENT or Vent to AC. there is a vent flap inside that redirects the air to different places
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1994 C124 E320 Coupe - 1975 W116 280S
When its really cold out, mine make a popping noise as well. Though I believe that's natural to the car because nothing has malfunctioned. I think what happens is the vents close when the car is turned off so no external "dirty" air comes through the vents to dirty the cabin when parked. Then when the car turns on they open. Part of the auto A/C. Compressor on or off it does it.
I could be completeeeeeeeeeeellllyyyyyy wrong.
I could be completeeeeeeeeeeellllyyyyyy wrong.
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95 e320...sold the rest
is it just once when you turn it on? mine makes a thunk sound as the little valve things change the direction of where the air is coming from. Like from going from off to AC or off to VENT or Vent to AC. there is a vent flap inside that redirects the air to different places
#5
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Mine does this too, even when I don't have the A/C on- it can be just when I'm using the fan or heater, usually around the time when I start up my car.
read something on one of the MB forums about this a few years ago... can't remember where. But I vaguely remembering there being some kind of kit you could get from MB to make it stop doing this. But it is not a problem at all.
In my case, I would call the sound more of a mix between popping and gurgling... if that makes sense.
Actually, I did a search on mercedesshop.com. scroll down to post #12:
http://www.mercedesshop.com/shopforu...=w124+gurgling
and look at post #9 in this thread:
http://www.mercedesshop.com/shopforu...=w124+gurgling
So I wouldn't worry too much about it.
read something on one of the MB forums about this a few years ago... can't remember where. But I vaguely remembering there being some kind of kit you could get from MB to make it stop doing this. But it is not a problem at all.
In my case, I would call the sound more of a mix between popping and gurgling... if that makes sense.
Actually, I did a search on mercedesshop.com. scroll down to post #12:
http://www.mercedesshop.com/shopforu...=w124+gurgling
and look at post #9 in this thread:
http://www.mercedesshop.com/shopforu...=w124+gurgling
So I wouldn't worry too much about it.
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1992 400E (180K miles)
thanks for the posts.
It's not the gurging, watery sound that you hear from the central vents--I have that too. This is more from the passenger side and is a constant pop every 30 to 45 seconds when the AC is on.
You are right about not worrying about it, it works. I should be glad. I need to worry about paying for a suspension update.
thanks.
It's not the gurging, watery sound that you hear from the central vents--I have that too. This is more from the passenger side and is a constant pop every 30 to 45 seconds when the AC is on.
You are right about not worrying about it, it works. I should be glad. I need to worry about paying for a suspension update.
thanks.
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88-300CE TWIN TURBO, 99-C43, 05-G55K, 71-280SL, 94-E320 CAB, 08 CLK63 BLACK SERIES
thanks for the posts.
It's not the gurging, watery sound that you hear from the central vents--I have that too. This is more from the passenger side and is a constant pop every 30 to 45 seconds when the AC is on.
You are right about not worrying about it, it works. I should be glad. I need to worry about paying for a suspension update.
thanks.
It's not the gurging, watery sound that you hear from the central vents--I have that too. This is more from the passenger side and is a constant pop every 30 to 45 seconds when the AC is on.
You are right about not worrying about it, it works. I should be glad. I need to worry about paying for a suspension update.
thanks.