Results 1 to 1 of 1
-
02 December 2017 #1
- Join Date
- 22 Jul 2013
- Location
- Florida
- Posts
- 5
- Saab(s)
- 2007 9-3
Bad Musty odor comming from A/C <FIXED>
As long as I was asking for help today I figured I would share a solution I found for the bad smells in my Saab 9-3.
I had a horrible musty moldy smell coming from the a/c. It would really mess with my allergies. After searching the forums I started by sealing off the exterior air filter housing and replacing the filter. That wasn't the problem. I pulled out the a/c vents in the cabin and sprayed disinfectant down into the system to clean the a/c vents. That didn't fix it either.
I was cleaning the back windows one day and smelled the same odor coming from the headliner. I dropped the headliner, that was a long process but it was well worth it, expecting to find a loose drain tube from the sunroof drain. Nope. All was good but when I dropped the headliner I could really smell the odor. So I knew I was in the right area finally. I tested the sunroof drain lines to see if they were clogged by pouring water through them. They all drained properly.
Finally I took some disinfectant. I diluted down some Mr. Clean concentrated disinfectant and put it in a lab type squeeze squirt bottle and flushed all four sunroof drain lines with the Mr. Clean solution. I turned on the a/c after and it smelled just like Mr. Clean coming from the a/c vents. The musty smell was gone. After a bit, a few weeks, the odor started to resurface. I noticed it mainly after it had rained on the car. So I made another bottle of the solution and flushed all four lines again. Smell gone again. So I made that a weekly maintenance item and did it every weekend for a month to clean the out the drain lines.
After the persistent flushing the odor has been gone and has been gone for almost 6 months now. It still smells clean no musty odor or Mr. Clean smell and I am confident that I have solved the mystery of the musty a/c odor in my car.
The only thing I can't understand is how the two systems are connected to each other. I know that that sunroof drain system and the a/c system are separate systems so how did the musty odor from the sunroof drain lines impact the a/c system so adversely.
Similar Threads
-
Windshield washers fixed!
By '07 Aero in forum Saab 9-3 (2003-2014)Replies: 4Last Post: 30 March 2017, 21:06 -
3rd brake light cover hangs down: fixed
By Dave T in forum Saab 9-3 (2003-2014)Replies: 3Last Post: 05 December 2016, 11:56 -
'03 9-5 2.3T 4 cylinder / MIsfire Solution / fixed
By photousa in forum Saab 9-5 (1998-2009)Replies: 3Last Post: 03 January 2013, 20:30 -
Airbag light fixed.
By simpleaz in forum Saab 9-3 (2003-2014)Replies: 2Last Post: 18 October 2012, 03:08 -
multiple problems, some fixed, some remain
By explorerfx4 in forum Saab 9-5 (1998-2009)Replies: 1Last Post: 09 March 2012, 21:19