benzat17

Hey guys every day when i turn on my a/c for the first time of the day i get a bad smell for like 5 seconds and its gone, if i shut it off and turn it on after an hour or two no smell .. the smell only comes if i don't turn it on for umm i would say a day its really weird.. i still get cold air thro all vents. one thing tho and im not sure if its a problem but i get more air coming from the center than on the sides?

thanks

Fraser

Filter need changing?

benzat17

you mean the filter that is in the glove box.. i changed it in December or November

tusabes

many many cars have the "old socks" smell when you first turn on the AC.

Completely normal. Spray large amounts of Ozium BG Frigi, Lysol or AircoFresh into the intakes near the bottom of the windshield

AircoFresh

http://www.wynnsusa.com/pdf/spec-sheet_AircoFresh.pdf

BG
http://carfood.com/bgfridsysdis.html

tusabes

here is a Ford manual explaining the procedure

http://wpnet.us/AC_Odor.pdf

benzat17

but ive never had this problem with any car i've owned and still own? i will of course try that and see thank you so much for the help

tusabes

you have mildew/mold in your system, you need to kill it.
its very common to all makes of cars, when moisture gets trapped somewhere in the system. Your other cars dont have trapped moisture so thats why they dont have it.

also make sure your drains are clear! clogged drains trap standing water.

classyS

tusabes - just want to confirm in this picture where the red arrows point, correct??

classyS

nevermind i just checked, i cant seem to find it.. is it near the reed valve drain?

benzat17

i checked today and i couldnt find the intake :S where is it the only thing i found was the drain! help would be really appreciated ! i did spray in the a/c vents in the car that did help, but i wont know till couple days after i guess because all i can smell is the spray thing.

tusabes

If spraying into the vents didnt kill it, let me know and Ill go take a look at my car....

Anyway here is a BMW forum explaining the procedure, maybe this will help
http://forum.roadfly.com/threads/12566722

Also this product will help dry out your system and also seal any leaks, highly recommended
http://www.amazon.com/Cliplight-Manu.../dp/B0002NYBC8

Here is a review of various sealants that actually work (better than the autozone stuff)
http://www.aircondition.com/knowledg...akSealers.html

and here is a cheap source for OEM MB AC parts
https://mbworld.org/forums/s-class-w...-ac-parts.html

benzat17

ok so i sprayed the vents it worked for a day( approx 36 hrs) and by the next day at night the smell came back BUT NOT as strong it was way better than before so im guessing i took care of half of the mold

benzat17

can someone tell me where is the outside vents so i can spray them too ??

thank you

MB-Dude

Open the engine hood and look for a large grated outing directly in front of the passenger seat. This is where the 2 cabin air filters gather the outside air. Refer to the attached pictures.

I have had great success by starting the engine (to keep the AC compressor running), set all interior fans on high, ensure the interior recirc is off, close the windows and doors, and spray an entire small can of Ozium (small can only!) into the duct. The Ozium will permeate the interior completely, but the Ozium smell will dissipate after a day or two, leaving a fresher scent. Repeat as necessary.

Cheers,
Jeff

classyS

they make a 0.8oz / 1.0oz / 3.5oz can ozium, which of 3 is the small can??

benzat17

I didn't use ozuim I used something else bought from orielly but I heard you can use Lysol if you want !!

classyS

benzat - what exactly did u get from oreilly?? i looked up AC odor and A/C odor, ozium was the main on the list but im sure theyre all the same right??

http://www.oreillyauto.com/site/c/se...eyword=ac+odor

MB-Dude

Depending on the size of the cabin you want to freshen up, either the 0.8oz or the 1.0oz. The 3.5oz is simply too much for one application. Also, try and let the Ozium sit in the car's interior overnight, without opening doors or windows.
Cheers,
Jeff

MB-Dude

Theoretically, Lysol will disinfect just about anything. However, Lysol's odor remains long after the job is complete and the oils in Lysol cling to everything. Using Lysol in this application is the same as hanging 20+ lil' evergreen tree deodorizers from your rear view mirror - does little but smells horrible. Ozium is somewhat unique in that it not only neutralizes odors (including *minor* cigarette odor), but it's native odor dimishes rapidly over time. IMHO
Cheers,
Jeff

benzat17

Good to know that thanks for the help

classyS

+1 thanks for the tip, im off to oreilly tomorrow for the 1.0oz ozium

W220HI

Did you change the charcoal filters just above the passengers feet? They like to soak up moisture in humid climates and then grow mold. If you live anywhere with high humidity you should really change all 4 cabin filters at the same time.

benzat17

But I don't use the charcoal filter and I believe they change it when you do service b and I did that in December
Also ia there a DIY how to check the charcoal
Even tho I don't need it because 90% of te smell is gone

tusabes

you have both charcoal and cabin filters, they are different.
look at your service Bill if you werent charged for both charcoal and cabin filters they were not changed. Or you can call up your service dept.

Most MB that are not dealer maintained have not had all the filters changed in years