HELP! Strange 2 second Engine beep, with car sut off
Thread Starter
Newbie
Joined: Apr 2009
Posts: 4
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2008 E350 AMG Sport package
HELP! Strange 2 second Engine beep, with car sut off
Happens maybe once every 10 times the car is turned off. There is a strange 1-2 second beep coming from the front of the engine on the drivers side, when the car is turned off, and repeats every couple of seconds. Sometimes lasts 10 minutes, sometimes goes all night. No idea what it is coming from. Have not heard it on my CLS 63 AMG only her E350. Took it to the dealer, and luck would have it, I could not get it to replicate, until I got home.
Any help would be appreciated. Just do not want to leave her stranded if it is a problem.
Any help would be appreciated. Just do not want to leave her stranded if it is a problem.
MBWorld Fanatic!
Joined: Dec 2006
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From: Europe
223.168 & 213.012 & 906.633 & 214.005
Be careful, you may get suggestions for a doctor's appointment. 
Seriously, I've never noticed this on my E but sounds like something I've seen reported by a few owners. Did you try to search earlier posts? Are you sure it isn't AC system pressure being gradually released?
Seriously, I've never noticed this on my E but sounds like something I've seen reported by a few owners. Did you try to search earlier posts? Are you sure it isn't AC system pressure being gradually released?
Thread Starter
Newbie
Joined: Apr 2009
Posts: 4
Likes: 0
2008 E350 AMG Sport package
I was at the Neurologist this morning! Everything is the same. I really do not think it is the alarm or the AC. It is definately a beep, not a release of pressure, and the sound is too soft to be a horn or siren. It is coming from the area between the Driver front wheel and the engine. I have searched threads and there are others who have had the problem with other models. I talked to the dealer and they said to bring it in. I would like to have more info before I head down there.
Almost a Member!
Joined: Feb 2009
Posts: 25
Likes: 0
From: Westchester, NY
2005 E500 4matic
I have somthing simular. Every once in a while i get a bep that last about 2 sec coming from somewhere in the front of the car, sounds like that dash but no lights come on or anything like that. It only happens about once a month so im not worrying about it. Wonder if its the same thing?
Member
Joined: Sep 2005
Posts: 160
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From: Northern Kentucky
2011 E350 4 Matic,1994 C220,1965 Mustang, 2005 Kawasaki Vulcan 1600
You are gonna love this.
Does the noise almost sound like an old dot matrix printer?
What you are hearing is the A/C compressor pressure equalizing.
Mercedes considers this a normal noise. Most everyone here will have heard it as it seems to not make the noise on all of these cars.
I have never heard it on my cars but we have had two come in for this noise.
To here it you have to be right near the car in a relatively quiet area.
I know the first one we heard drove us all crazy trying to find it. As it sounds electrical we were not homing in on the compressor.
Nothing to worry about however.
Does the noise almost sound like an old dot matrix printer?
What you are hearing is the A/C compressor pressure equalizing.
Mercedes considers this a normal noise. Most everyone here will have heard it as it seems to not make the noise on all of these cars.
I have never heard it on my cars but we have had two come in for this noise.
To here it you have to be right near the car in a relatively quiet area.
I know the first one we heard drove us all crazy trying to find it. As it sounds electrical we were not homing in on the compressor.
Nothing to worry about however.
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Member
Joined: Sep 2005
Posts: 160
Likes: 0
From: Northern Kentucky
2011 E350 4 Matic,1994 C220,1965 Mustang, 2005 Kawasaki Vulcan 1600
Be careful, you may get suggestions for a doctor's appointment.
Seriously, I've never noticed this on my E but sounds like something I've seen reported by a few owners. Did you try to search earlier posts? Are you sure it isn't AC system pressure being gradually released?
Seriously, I've never noticed this on my E but sounds like something I've seen reported by a few owners. Did you try to search earlier posts? Are you sure it isn't AC system pressure being gradually released?
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Member
Joined: Sep 2005
Posts: 160
Likes: 0
From: Northern Kentucky
2011 E350 4 Matic,1994 C220,1965 Mustang, 2005 Kawasaki Vulcan 1600
Yep, it is really a distinctive sound, as as it sounds electrical in nature I can understand the concern you have of leaving your lady stranded.
How many people are gonna be in thier garages tonight listening for this noise?
How many people are gonna be in thier garages tonight listening for this noise?
MBWorld Fanatic!
Joined: Aug 2005
Posts: 3,085
Likes: 59
From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
Ya, it's happened to me at least 10 times. I will shut the car off. After about 5 - 7 seconds, there will be a long beep noise for about 3 - 5 seconds. Dealer couldn't replicate it. It usually happens right after the Airmatic starts to lower.
Almost a Member!
Joined: Feb 2009
Posts: 25
Likes: 0
From: Westchester, NY
2005 E500 4matic
Im glad to hear that it's normal. Now I can tell my friends in the car when it happens what it is, and not just tell them its happened before and im not worrying about it. It makes me sound like an idiot not knowing why my car is making a random beep.
MBWorld Fanatic!
Joined: Aug 2005
Posts: 3,085
Likes: 59
From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
Lol, ya, my friends where like wtf when it first happened? They looked at me like, "should we run now since it's gonna blow up?"
MBWorld Fanatic!
Joined: Aug 2005
Posts: 3,085
Likes: 59
From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
Ya, I always have to do that too. My friends are all BMW junkies. They're like "oh, the performance of a BMW is like nothing else." My uncle, who is a BMW nut and has a 330CI coupe w/ dinan intake and chip, just got a 04 E320 for his wife (I recommended it as a good car). I asked him a couple of weeks ago when he was in town how it was. His response: "Man... nothing like a Mercedes." He was also very impressed with the power and handling of the car and was very surprised. I have to say, most people who don't and some that do own an MB, no nothing about the cars.
Almost a Member!
Joined: Feb 2009
Posts: 25
Likes: 0
From: Westchester, NY
2005 E500 4matic
Ya, I always have to do that too. My friends are all BMW junkies. They're like "oh, the performance of a BMW is like nothing else." My uncle, who is a BMW nut and has a 330CI coupe w/ dinan intake and chip, just got a 04 E320 for his wife (I recommended it as a good car). I asked him a couple of weeks ago when he was in town how it was. His response: "Man... nothing like a Mercedes." He was also very impressed with the power and handling of the car and was very surprised. I have to say, most people who don't and some that do own an MB, no nothing about the cars.
Junior Member
Joined: Jan 2011
Posts: 15
Likes: 1
From: Buffalo, NY
1998 SL 500
You are gonna love this.
Does the noise almost sound like an old dot matrix printer?
What you are hearing is the A/C compressor pressure equalizing.
Mercedes considers this a normal noise. Most everyone here will have heard it as it seems to not make the noise on all of these cars.
I have never heard it on my cars but we have had two come in for this noise.
To here it you have to be right near the car in a relatively quiet area.
I know the first one we heard drove us all crazy trying to find it. As it sounds electrical we were not homing in on the compressor.
Nothing to worry about however.
Does the noise almost sound like an old dot matrix printer?
What you are hearing is the A/C compressor pressure equalizing.
Mercedes considers this a normal noise. Most everyone here will have heard it as it seems to not make the noise on all of these cars.
I have never heard it on my cars but we have had two come in for this noise.
To here it you have to be right near the car in a relatively quiet area.
I know the first one we heard drove us all crazy trying to find it. As it sounds electrical we were not homing in on the compressor.
Nothing to worry about however.
Senior Member
Joined: Oct 2010
Posts: 341
Likes: 4
From: Columbia, MO
E320 & X166
Ya, I always have to do that too. My friends are all BMW junkies. They're like "oh, the performance of a BMW is like nothing else." My uncle, who is a BMW nut and has a 330CI coupe w/ dinan intake and chip, just got a 04 E320 for his wife (I recommended it as a good car). I asked him a couple of weeks ago when he was in town how it was. His response: "Man... nothing like a Mercedes." He was also very impressed with the power and handling of the car and was very surprised. I have to say, most people who don't and some that do own an MB, no nothing about the cars.
. He said it felt more planted at 150mph than his cruiser did at 90 
. Yes he did tell his buddies not to be on that road for a few minutes. Great ride!!!!
