Air conditioning problem
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Junior Member
Joined: Jun 2005
Posts: 40
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From: Fort Lauderdale, Florida
2005 E55 AMG
Air conditioning problem
Hello everyone. I am new to this page. My name is Jai Motwani. I have a 2005 e55 amg and have a smell of cat urine in my a/c. Can anyone of you acknowledge this complaint?
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From: Palm Beach, FL
'03 Yukon XL Denali, '06 Eclipse GS
Hello, I've never bothered to smell cat urine, but I'm sure it's pretty damn bad. You might be experiencing the smell of sulfur, in this case. How long have you owned this car?
Thread Starter
Junior Member
Joined: Jun 2005
Posts: 40
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From: Fort Lauderdale, Florida
2005 E55 AMG
I purchased the car new in july of 04. The car only has 1600 miles. The odor is only when I start it up. I spoke with the dealer and they said they have a special product they use to correct it. We have tried this treatment but it did not work.
Originally Posted by E55 Pilot
I purchased the car new in july of 04. The car only has 1600 miles. The odor is only when I start it up. I spoke with the dealer and they said they have a special product they use to correct it. We have tried this treatment but it did not work. 

Every once in a while I get the smell as well, but it goes away in a matter of a few seconds. I've heard that the smell is due to residual moisture in the A/C system and it starts to slightly mildew after the car has been turned off for a length of time.
The best way to help rid your car of the smell is to use the A/C off (rest) button in your car. Just press the button before you leave your car and it should blow our the remaining moisture and be fresh the next time you get in your car.
The best way to help rid your car of the smell is to use the A/C off (rest) button in your car. Just press the button before you leave your car and it should blow our the remaining moisture and be fresh the next time you get in your car.
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yea dude if its brand new, get on their case to see what the eff is wrong with it dude. it shouldnt be happeneing to a 2005 e55, not cool at all. you paid like 90k fo the damn car, the ac shouldnt smell worse than the ac of a kia rio.
mb fanatic, are you a desi? cause i sure as hell am and my rents do have a 2002 honda odyssey. where you located?
mb fanatic, are you a desi? cause i sure as hell am and my rents do have a 2002 honda odyssey. where you located?
Originally Posted by darren_dallas
Every once in a while I get the smell as well, but it goes away in a matter of a few seconds. I've heard that the smell is due to residual moisture in the A/C system and it starts to slightly mildew after the car has been turned off for a length of time.
The best way to help rid your car of the smell is to use the A/C off (rest) button in your car. Just press the button before you leave your car and it should blow our the remaining moisture and be fresh the next time you get in your car.
The best way to help rid your car of the smell is to use the A/C off (rest) button in your car. Just press the button before you leave your car and it should blow our the remaining moisture and be fresh the next time you get in your car.
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From: Sydney, Australia
2017 S63 Coupe Iridium Silver
Originally Posted by E55 Pilot
Hello everyone. I am new to this page. My name is Jai Motwani. I have a 2005 e55 amg and have a smell of cat urine in my a/c. Can anyone of you acknowledge this complaint? 

My 2005 E55 is just as bad and MB is looking a bit stupid not knowing how to fix it, since it already has the mods, ...supposedly!?!.
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From: Sydney, Australia
2017 S63 Coupe Iridium Silver
Originally Posted by E55 Pilot
I purchased the car new in july of 04. The car only has 1600 miles. The odor is only when I start it up. I spoke with the dealer and they said they have a special product they use to correct it. We have tried this treatment but it did not work. 

Thread Starter
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Joined: Jun 2005
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From: Fort Lauderdale, Florida
2005 E55 AMG
I spoke with mercedes benz again on the third repair. Apparently, the assemble line which produces the evaporators, did not coat them with a special coating which prevents mold and bacteria to grow on the evaporator. This case is common in high humidity area. Also my car only has 1600 miles because I have a few cars. I rarely drive my e55. The prolonged storing maybe increased the growing stage. Finally they stated they were going to r/r my dash to install the new evaporator. I told the dealer absoultely not. I will not let them canniabilze my car. I paid 90k for this car and I already lost my new car smell and have to smell a foul smell everytime I start my car. For all of you who are experiencing this problem thare is a mercedes benz bullentin to address the many complaint for this.
I too encounter a musty scent on different occasions...and I live in So FL.
I recall once on Motorweek, the guy Pat Goss suggested to turn on the
a/c, press the recirculation switch and spray a can of Lysol or some anti-fungal or anti-mold spray/deodorant into the intake port.
The question is, where is this intake port.
Is it somewhere in the engine bay or somewhere in side the cabin?
Does anyone have any ideas....
The smell is bad enough, let alone having to inhale *ucking mold or fungus
stuff that reaks havoc with one's sinuses.
Help Guys!!!!
I recall once on Motorweek, the guy Pat Goss suggested to turn on the
a/c, press the recirculation switch and spray a can of Lysol or some anti-fungal or anti-mold spray/deodorant into the intake port.
The question is, where is this intake port.
Is it somewhere in the engine bay or somewhere in side the cabin?
Does anyone have any ideas....
The smell is bad enough, let alone having to inhale *ucking mold or fungus
stuff that reaks havoc with one's sinuses.
Help Guys!!!!
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Joined: Nov 2004
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From: Johannesburg, South Africa
2006 E46 M3, 2008 E92 M3
The SLK also has this problem. Yuck.
So in summer I just drive with the windows open/top down (love the wind and hearing the engine, will drive with windows open in any car, even at 140km/h
), and in winter the A/C isn't needed. Still, it smells REALLY bad.
So in summer I just drive with the windows open/top down (love the wind and hearing the engine, will drive with windows open in any car, even at 140km/h
), and in winter the A/C isn't needed. Still, it smells REALLY bad.
I too am having this issue. The dealership told me it's a common issue and was supposed to fix it when I took it in for an alignment this week. Come to find out the SA forgot to add it to the order and it never got done. I hope they can repair the problem and not just provide a bandaid solution that won't last more than a couple of months. It's almost embarassing when I have friends riding in my car. I don't want them to think my car stinks because of something else but I also don't want to tell them the whole truth and have them thinking that MB's are of low quality. I just ignore it and act like I don't smell anything if they ask since it goes away within a few minutes.
Originally Posted by Eleanor Owner
This is absolutely correct. A friend of mine with a C coupe had the same problem and the dealership actually replaced his A/C unit under warranty. No charge whatsoever. A small remedy, however, comes in the form of using an artificial scent. I for one, have a certain insence that I love the smell of. By turning the A/C on "circulate" mode (where the A/C simply recirculates air inside the car) and then burning the insence inside the car, the smoke circulates through the vents. Now, whenever I turn on my A/C I get a subtle hint of the scent I love. Give it a shot once the new car smell goes away.
Originally Posted by darren_dallas
Every once in a while I get the smell as well, but it goes away in a matter of a few seconds. I've heard that the smell is due to residual moisture in the A/C system and it starts to slightly mildew after the car has been turned off for a length of time.
The best way to help rid your car of the smell is to use the A/C off (rest) button in your car. Just press the button before you leave your car and it should blow our the remaining moisture and be fresh the next time you get in your car.
The best way to help rid your car of the smell is to use the A/C off (rest) button in your car. Just press the button before you leave your car and it should blow our the remaining moisture and be fresh the next time you get in your car.
I haven't noticed any mildew smells yet, but Atlanta can also get pretty humid and the car may sometimes sit in the garage for 5-7 days if I'm out of town. No AC in the garage - I wonder if a good portable dehumidifier would minimize/prevent the problem.
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From: Sydney, Australia
2017 S63 Coupe Iridium Silver
Originally Posted by Beowulf
Wonderful - they did away with the REST feature on all but the earliest 2005 builds.
I haven't noticed any mildew smells yet, but Atlanta can also get pretty humid and the car may sometimes sit in the garage for 5-7 days if I'm out of town. No AC in the garage - I wonder if a good portable dehumidifier would minimize/prevent the problem.
I haven't noticed any mildew smells yet, but Atlanta can also get pretty humid and the car may sometimes sit in the garage for 5-7 days if I'm out of town. No AC in the garage - I wonder if a good portable dehumidifier would minimize/prevent the problem.appears in their features list. Dollar by dollar, the bean counters are reeling the engineers in as in the past 10 years!
Yep, Rafal, they did do away with the charcoal filters on the '05's, at least on the later builds. My July 2004 build had the REST feature, don't know whether it had the charcoal filter. My December 2004 build has neither.
And yes, Darren, all 2004's have both, to the best of my knowledge.
And yes, Darren, all 2004's have both, to the best of my knowledge.
Originally Posted by Samoan_Ridah
You mean to tell me you actually drive around with a burning stick of incense in your car?!?!
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From: Sydney, Australia
2017 S63 Coupe Iridium Silver
Originally Posted by Samoan_Ridah
I too am having this issue. The dealership told me it's a common issue and was supposed to fix it when I took it in for an alignment this week. Come to find out the SA forgot to add it to the order and it never got done. I hope they can repair the problem and not just provide a bandaid solution that won't last more than a couple of months. It's almost embarassing when I have friends riding in my car. I don't want them to think my car stinks because of something else but I also don't want to tell them the whole truth and have them thinking that MB's are of low quality. I just ignore it and act like I don't smell anything if they ask since it goes away within a few minutes.
We should organise class action against Daimler Benz!
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From: Sydney, Australia
2017 S63 Coupe Iridium Silver
Originally Posted by Eleanor Owner
Of course I do! Haha, no what I did was similar to what clk55fan suggested. Instead of Lysol, however, I chose a certain incense that I prefer. I set it on top of the middle console and let it burn in my car for about 15 minutes with the circulation A/C on. It would have been pretty difficult keeping a lit stick of incense steady the way I drive 

Originally Posted by E55 Pilot
Hello everyone. I am new to this page. My name is Jai Motwani. I have a 2005 e55 amg and have a smell of cat urine in my a/c. Can anyone of you acknowledge this complaint? 



