A/C - Mild Sour Smell at Start Up

[moosehead1]

Doesn't smell like mold or whatnot, more like stale Armor All (which is not applied anywhere on the vehicle).

I'll take it in for dealer A/C check along with 5K mile service, but thought to ask the board for any ideas/input on the issue.

Cheers.

[Omnipotent]

Could be your Cabin air filter needs to be replaced.

[jeffrey146]

Mine does it sometimes as well. Barely changed the cabin filter as well. Seems to only do it when the car was sitting in the really really warm.

[agent47]

Mine does it sometimes as well. Barely changed the cabin filter as well. Seems to only do it when the car was sitting in the really really warm.
+1. My car does the same when its been in the sun. I just open the windows as soon as I take off for a minute or so.

[moosehead1]

^Thanks gents. Evidently, my AC had either not been used, or only used on mild settings for a short while.

Driving around at a high rate of speed with the A/C cranked through the dash/windshield/floor vents with fresh air (non-recirculated air) did the trick.

I will still change out the air filter.

It is also great to have the remote keyfob windows function via VCDS. It's a bit nicer way to enter a car that has been out in the sun.

[jeffrey146]

*2 on the window deal. I've done that on both of my s4s

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