Passat (B6) :: Musty HVAC Odor - Cabin / Charcoal Filter Replacement
Sep 22, 2010
I know this has been covered many times before but I know how to remedy the problem. My question is that I have an 09 which is still under warranty, is replacing the cabin filter/charcoal filter due to bacterial odor covered under my bumper to bumper warranty? I found some posts where people said it was but I want to double check before i waste time that I don't have with the dealer since I've been really busy with school.
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My 2003 Passat has a musty smell coming from the HVAC system that just won't go away. Have resealed pollen filter and had airsept treatment (this worked for a while, but now the smell is worse than ever). Two dealers have tried (and failed) to fix this. It's so bad I can't take passengers in the car.
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My 08 B6 wagon has a very foul odor emanating from the HVAC system. It started after my wife washed the windshield with vinegar to get rid of some scaling from the bizarre water we have here. She thought the smell was from some of the vinegar running off the windshield. Well, that was several months ago and the smell is no better. Just recently, the temps have been down enough to turn off the AC switch and the smell is even worse.
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Where exactly the cabin air filter is located and how to replace it? I bought a filter, It came with an instruction sheet that says the filter is in the passenger side foot well. I pulled off the cover under the dash and the cover on the side of the dash, no filter.
The top of the inside of the glove compartment has an allen wrench on the top of the compartment, (what is that for?) It looks like there are some phillip screws on the top inside of the glove compartment, but I thought I'd seek advice before I tore the entire car apart!
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Is there a procedure for changing the cabin air filter on the 2015 Hyundai Elantra SE cabin air filter? I can't find instructions in the owner's manual.
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How to replace the Cabin Air Filter in 2010 RX350? I read in here that you need to switch to the ReCirc mode but then how to remove the shelves in the glove compartment? I almost broke it another the day but still can't take it apart.
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After replacing the cabin air filter I heard a loud noise from the fan area in the car. I rechecked the installation which was ok. I then reached down into the fan assembly, and there was the problem, some leaves had fallen into the fan when I removed the old filter. Took out the leaves , and all is well.
I replaced the OEM filter with a Fram Fresh Breeze filter which interesting enough only had half as many folds. I figure a big company like Fram must know what they are doing?
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I know the cabin or A/C air filter is to filter out pollutants, etc. like the ones in home A/C so you have more comfortable & cleaner air into the car.
But is it really necessary to have & replace or just a nice convenience (and thus extra hassle to maintain) in modern cars? I believe old cars 2 decades or more back didn't have these right?
Just asking this because
(1) I don't care that much about really clean air coming into car, and more importantly
(2) I just replaced the cabin air filter in my Suzuki Forenza. I didn't know it had one until I did some research. Manual didn't really point it out, and the dealer & mechanics never mentioned it whenever I brought in for service. So all this time, I think I've been using the original filter for 7 years (60k miles), or if not then at least half that (assuming dealership did their part to replace the filter at the right time for 30k or other interval service). The original filter mentions to inspect & replace as needed and using a dirty one can damage the blower or something like that.
So what's the worst that can happen if you just keep using same old cabin air filter and never replace it? Will it kill your heating & A/C system or parts of it? Or just really dirty air over time?
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How do you replace a/c cabin filter on a 2009 Toyota Avalon Limited?
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2014 TDI Passat with 66k miles. No unusual problems until this point. Three days ago I began to notice a strong ammonia odor coming through the ac vents. Its become significantly worse over the last 24 hours. The vaporized ammonia is sufficiently concentrated to cause eye and nasal irritation. It occurs rapidly, within 30 seconds of turning on the recirc mode. Turning off the recirc mode can clear the cabin quite fast as well. There is no odor or leak perceptible in the engine compartment, under the car, or in the trunk space.
No check engine warning or alarm that there is a problem with the DEF system. DEF fluid container was last topped off about 5k miles ago. Clearly, this is a significant failure of the emission system. I've done a cursory search but have not seen this exact problem written up before. Wondering why a car would be designed with the HVAC close to the to the exhaust/emissions system that it could capture gasses intended for the exhaust system? Its not so much the ammonia I/m worried about as the odorless and toxic Nox gasses the emission system should be reducing. getting dropped off at the dealer tomorrow.
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I bought a New Toyota Camry in November of 2012. It is a 2012 model. Since we bought the car in November we rarely ran the AC. Well summer is in , and we recently began running the AC on a daily basis. About a month ago we began having a foul/musty odor coming out of the AC. We brought it to the dealer twice.
The second time we brought it back, the dealer told me that they believe the problem is my dogs.Because there was a very minimal amount of hair on the seat covers. Rat terrier and jack Russel. They are white and I noticed the hair thing after the first ride with us. So they do not ride in the car anymore. What upsets me the most is the fact the dealer wants to charge me to take the AC apart and clean it.
Told me the only reason they could account for the odor is pet dander. They did flush the ac through the drain hole and installed a charcoal filter. Same thing it lasted about 1 week. Is there a simple resolution to this? I am at wits end. Because it has under 10 K miles, I do not feel I should have to run the heater or do anything to get rid of the odor. It is hot enough here in Fl.
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Whats the difference? which one is better? Im in the market for a cabin air filter, but I noticed there are ones that are similar to the OEM material, and then there are Charcoal cabin air filters? What is so special about a charcoal air filter?
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I recently purchased a used 2006 Honda Pilot. I now notice a mildew/musty smell that appears to come from the ac vents. I only notice it when driving with the windows down, right after I turn the AC off, and sometimes when I first get into the car. I do NOT notice it when the AC is running or when the fan is blowing. I have had the car detailed twice (thinking the odor was coming from the upholstery) and have hired someone to spray an odor eliminator spray into the vents and air intake. I have also changed out the cabin air filter. None of these actions have worked and the smell remains. I love the car but this odor is really annoying me.
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I've never done it, not even sure where it is located.
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So, I just dropped a bit more money that I wanted to for an oil change at a drive-through place. The tech offered to replace my dirt cabin air filter. I figured that I could do it myself for much less (or even just tap the dirt out of my current one). How to access the filter, and how easy or difficult the process is?
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I have already seen the post which shows a diagram from the B5. Exactly where the access is. In my car I open the glove box and there is another pull down compartment that holds the manual. Does this compartment need to be removed? If it does how do you do it. I dont see anything that looks like the diagram given.
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How do you fix the musty smell from the cabin airbox when it is always on recirculate and must be wet inside? I have a 2011 Camry.
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I bought a used a 2008 LS600hL and noticed that when I run the fresh air setting with the AC off (like in winter) I get a musty smell in the cabin. I had Stevens Creek Lexus (Santa Clara Ca.) check it out and they tried to put a fragrance on it but that wore off after a few days. I have no problems with the water drainage (they checked) but wonder if I need to pull the AC coils and replace or something like that.
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When I start the car, there is a very strong smell of gas in the cabin. What is causing it? Is it expensive to fix?
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My wife has a 2015 Tiguan, 4 months old, and unfortunately a few early gremlins. The battery died after about a month - it was defective and we replaced it with an aftermarket to save a trip to the dealer (I know how to measure and detect electrical issues).
The Tiguan has also had intermittent gas odors in the cabin. Happens after it is started and is fairly strong but last for about a minute. Unfortunately it does not always happen and my wife has not detected a pattern such as cold starts, cold weather, full tank of gas, etc.
My wife is sensitive to the odor and I'm concerned about a potential gas leak (albeit a small one).
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I have a rernote starter installed on my '07 SF 3.3. It will leave the engine running for 18 minutes before shutting off. If I get into the vehicle after it has been running for over 10 minutes or so, there is a strong odor of gas inside.
Where I might look for where it is coming from? If I remember to leave the vehicle in "recirculate" mode the night before, the odor is less, but my wife and I drive it equally so often the recirlcualte button will not be pressed.
Not sure if there is a leak somewhere (no other signs of a leak or gas odor while driving), or if this is "normal"...
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