smell coming from vents after ac is switched on or off

2003 330xi, fully loaded, any ideas? only lasts a minute, but is quite nasty!

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Condensation causes all kinds of flora and fauna to grow in your HVAC system. Dealers have a spray that'll kill it, and then you can lessen its appearance by drying out the HVAC system before parking: shut off the AC compressor, open the windows and the fresh air intake, and turn the blower on to its highest setting for a few minutes before you shut the car down...
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thanks!
is just doing what you say going to fix it, or do I need to get the spray for sure...? It just started doing this last week after a few days of rain
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Maybe not "for sure", but in my experience once the critters have infested the system it takes a spraying to kill 'em. It only takes a couple of minutes - the tech sticks a thin tube down one of the vents, hooks it up to a spray can and hoses the system down, then runs the blower with all the vent controls open to make sure the stuff gets all around in the ducting.
Humid weather definitely enables this problem...
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On Thu, 04 May 2006 18:54:56 -0400, daytripper

Happens in dry areas also. Here in AZ some cars are really prone to it as well. I do the 'dry out' trick and never have the problem. A block from my house I swtich the ac off. I don't even run the blower on high or open the windows. Just slowly let it get back to warmer air (since ac is off)..
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Yup. A spray only sorts things short term - it *will* come back.
--
*I don't suffer from insanity -- I'm a carrier

Dave Plowman snipped-for-privacy@davenoise.co.uk London SW
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My E38 suffers from the same and the dealer has used these sprays before. You can save yourself a fair bit of money and get the sprays yourself - in the UK, Wynns do one (about 12 inc postage). Presumably you spray it into the air intake under the bonnet - anyone know where it is/is it easy to get to? (I don't venture under the bonnet very often!).
La Tercia Real
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Normally, you set the system to re-circulate and spray into the cabin air intake which is in the footwell. Febreeze works pretty well at a fraction of the price of specialist products.
--
*If you tell the truth, you don't have to remember anything.*

Dave Plowman snipped-for-privacy@davenoise.co.uk London SW
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does this car have a cabin filter?
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almost certainly...
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kids missing a snake or lizard? or mouse ?
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lol!

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You had to bring up that foul memory didn't you?
A tarantula. No shit, a tarantula.
"But dad, I thought you'd freak out if I brought it in the house".
Hep me, hep me oh dear god hep me.
I put the car into winter storage a little early that year. The good news is dead^H^H^H^H freeze dried red leged tarantula doesn't seem to stink.
My sons only ever wanted a parrot and settled for a budgie. My daughters wants spiders, snakes, lizards and tree frogs. No, they would not settle for a hamster. Except as food.
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Need Mercedes parts? http://parts.mbz.org
Richard Sexton | Mercedes stuff: http://mbz.org
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On Thu, 04 May 2006 15:25:58 -0400, SharkmanBMW wrote:

You must replace the microfilter(cabin filter) every 15,000 miles. It cost 15 bucks. Replace it.
Then you can do that antimicrobial spray through the ventilation system if the smell persists.
ER
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The livestock are growing downstream of the microfilter, so that won't have any effect on the odor.

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