moldy stink from hvac - help pls !

[Morea318]

have been doing quite some re/searching on this topic.

Get a 'dead mouse'/old gym sock - y name it odor out of my ventilation when ac in not on.

1. what can I do = DIY to REALLy get rid of this

2. this seems an E36-typical problem since I also found this topic in other forums (but they were just discussing micro-filters.

3. Latest BMW TSB (Technical Service Bulletin) on this for the 318ti is

TSB 640403 OCT 04 " A/C Musty odors from heater and A/C system"

This being BMW I do not get access via Alldata.com to their TSBs ...

I feel really ashamed for BMW since they are an institution and I lived for 27 yrs. in Munich where my car was built (acc. to my VIN).
:confused:

Thank y'all for your feedback !

[stormos]

silly question, but have you tried changing the microfilters?

[Morea318]

hi stormos,

that'll be just a part of "it" as I have understood my extensive researches.
I posted this q expressly for the ti.

So : suggestions for a COMPLETE hvac system overhaul to get rid of this problem ?

Thank you.

(emphasis only, no shouting)

[L84THSKY]

I recall having that problem about a month ago. All I did was change the microfilters, but I won't swear that was the cause.

silly question, but have you tried changing the microfilters?

[96cali]

It is possible you have an actual dead mouse in there you know. :eek:

[aceyx]

you kind of have to go replacing things one at a time. otherwise, you'll never know what the problem actually was. does this only occur with the a/c on? if not, then it's probably not a part of the bulletin.

i would go microfilters. based on their location, they can get pretty nasty.